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General HIFI => Other DACs => Topic started by: stevenvalve on September 25, 2014, 05:54:56 PM

Title: The Line Magnetic LM-502CA Dac
Post by: stevenvalve on September 25, 2014, 05:54:56 PM
Bryan rang me to rave about the sound of this new DAC. Its cheap in a way and has valve output. Bryan said you can change from valve output to transistor with a flick of a switch. The caps they use look interesting. Anyone know about this machine.

 The Line Magnetic LM-502CA 
Title: Re: The Line Magnetic LM-502CA Dac
Post by: Tuyen on September 25, 2014, 06:11:17 PM
looks good!    ess sabre 9016 chip    with tube rectification and output stage. 

Not exactly that cheap though..  would be around $2k rrp.


EDIT: only around $1k (shipped) with aliexpress - http://www.aliexpress.com/item/Line-Magnetic-Li-magnetic-LM-502CA-digital-audio-decoder/1639921542.html (http://www.aliexpress.com/item/Line-Magnetic-Li-magnetic-LM-502CA-digital-audio-decoder/1639921542.html)

EDIT 2:  doesn't support DSD which is a bummer.  Well the sabre chip does, but the included usb module doesn't.   wouldn't be difficult to replace the usb module with something that does though.. just the i2s wires and power.



Title: Re: The Line Magnetic LM-502CA Dac
Post by: Tuyen on September 25, 2014, 06:33:16 PM
glowing review:
http://www.witchdoctor.co.nz/index.php/2013/06/line-magnetic-lm-502ca-vacuum-tube-dac-review/ (http://www.witchdoctor.co.nz/index.php/2013/06/line-magnetic-lm-502ca-vacuum-tube-dac-review/)

 “Shindo of China”     lol
Title: Re: The Line Magnetic LM-502CA Dac
Post by: omodo on September 25, 2014, 08:31:21 PM
it's been around for a while, and yes cheap direct from China

... but must admit I am honestly surprised he is raving about the sound of it compared to the KDAC?!?!?!
Title: Re: The Line Magnetic LM-502CA Dac
Post by: omodo on September 25, 2014, 08:57:15 PM
also, these are the output caps I believe

http://www.analogmetric.com/goods.php?id=2346

http://www.selectronic-kondensatoren.de/english/kondensatoren_audio-acr.html

https://pitchperfectaudio.files.wordpress.com/2013/05/502ca-tubes2.jpg
Title: Re: The Line Magnetic LM-502CA Dac
Post by: ozmillsy on September 25, 2014, 09:26:35 PM
... but must admit I am honestly surprised he is raving about the sound of it compared to the KDAC?!?!?!
Bryan has the earlier version Scott Thompson 1541 dac,  with subsequent tube rectification mod.   It sounded amazing to my ears when I heard his system.   So this LM dac warrants some investigation based on his initial impressions.

Ultimately we do need to land on a hi-res dac with computer front end,  that exceeds our current baseline.    It is only a matter of time, before someone produces something that gets us there.    ::)

I honestly reckon the PC front end is a real bottleneck,  based on the stuff I have heard to date.   There is just something so organic about a modded CDM1 based transport.    Maybe some of these hardcore dudes over on diyaudio are going to keep pushing the (pc) boundaries?
Title: Re: The Line Magnetic LM-502CA Dac
Post by: kajak12 on September 25, 2014, 10:22:31 PM
it's been around for a while, and yes cheap direct from China

... but must admit I am honestly surprised he is raving about the sound of it compared to the KDAC?!?!?!
Bryan also thought his electrostatic panels where better then his golden horns,i dont think so golden horns are the ones to beat electrostatic panels are thin.........
Title: Re: The Line Magnetic LM-502CA Dac
Post by: ozmillsy on September 25, 2014, 10:32:47 PM
Bryan also thought his electrostatic panels where better then his golden horns,i dont think so golden horns are the ones to beat electrostatic panels are thin.........
Did you hear Bryans panels when setup in his room (in Melb)?     I havent,  but I know Bryan goes to extra ordinary lengths to dial in his systems.  I cant imagine them sounding thin (based on Grahams and others comments).
Title: Re: The Line Magnetic LM-502CA Dac
Post by: stevenvalve on September 25, 2014, 10:59:02 PM
it's been around for a while, and yes cheap direct from China

... but must admit I am honestly surprised he is raving about the sound of it compared to the KDAC?!?!?!
I think he is saying its real good, but so is his KDac, Plus his system is not optimal for comparisons  yet.
Title: Re: The Line Magnetic LM-502CA Dac
Post by: vitavoxdude on September 26, 2014, 02:28:54 AM
:) Well the case looks better than the KD but the insides I have to say does not inspire confidence.  They are using bog standard parts in the scheme of things, cheap valve bases, vanilla resistors and smallish mains transformers.  The rectifier valve is also small in comparison the the KD and no chokes to be seen.  This does not mean to say that it can not sound any good as the skill is in the design implementation.  No idea what the coupling caps are, too hard to see form the pictures, maybe Bryn can say.

As Tuyen said, it does not support DSD in current form which is a shame, it still looks a versatile unit and it has a display!!!!  Maybe some one in WA will get one so we can all have a listen.  ;D
Title: Re: The Line Magnetic LM-502CA Dac
Post by: zenelectro on September 26, 2014, 01:10:15 PM
Uses ES9016 Sabre DAC and 12AU7 OP stage.

Not a bad match actually, 12AU7 is a pretty rich sounding tube that would offset nicely sound of Sabre.
I'd even go for a 12BH7 or 6CG7.

Agreed that no DSD is a bummer. Also as I have pointed out previously, IMO you can get Sabre sounding good, just needs
attention to (many) details and the right (tube) OP stage..... doesn't surprise me that someone's done it. Good luck to them!

Edited....   These are Chinese made, that explains the price point.   

I wonder when we will see a Chinese knock off of a Kirra DAC.... Ooops.... LOL.  :)


T
Title: Re: The Line Magnetic LM-502CA Dac
Post by: stevenvalve on September 26, 2014, 01:22:36 PM
Uses ES9016 Sabre DAC and 12AU7 OP stage.

Not a bad match actually, 12AU7 is a pretty rich sounding tube that would offset nicely sound of Sabre.
I'd even go for a 12BH7 or 6CG7.

Agreed that no DSD is a bummer. Also as I have pointed out previously, IMO you can get Sabre sounding good, just needs
attention to (many) details and the right (tube) OP stage..... doesn't surprise me that someone's done it. Good luck to them!

Edited....   These are Chinese made, that explains the price point.   

I wonder when we will see a Chinese knock off of a Kirra DAC.... Ooops.... LOL.  :)


T
They could not afford the parts.
Title: Re: The Line Magnetic LM-502CA Dac
Post by: zenelectro on September 26, 2014, 04:20:17 PM
They could not afford the parts.

They would make a KD for half the price with the same parts - if they knew which bits to use and what design to use.
Don't think for a second that they are not capable of this.

They don't have much of a clue WRT combination of bits and which bits to actually use,
it usually takes some seasoned designer to guide them. AMR is a good example, all Chinese but to Thorsten Loesch's specs.

FWIW, they are very good at software, custom filters, FPGA programming etc etc.

T
 
Title: Re: The Line Magnetic LM-502CA Dac
Post by: kajak12 on September 26, 2014, 07:24:04 PM
Did you hear Bryans panels when setup in his room (in Melb)?     I havent,  but I know Bryan goes to extra ordinary lengths to dial in his systems.  I cant imagine them sounding thin (based on Grahams and others comments).
Yes in Melbourne last year before stevem bought them.................i would not buy them
Title: Re: The Line Magnetic LM-502CA Dac
Post by: vitavoxdude on September 26, 2014, 08:44:48 PM
Quote
electrostatic panels are thin.........

Hmmmm, well if by thin you mean as fast as grease lightning with no overhang (ringing) and the ability to hear deep into the mix then yes, some may be thin. IME most do not know how to set them up within a room and place them too close to rear walls which robs them of body and bass.  This would account for a thin- devoid of body result, poor placement.  I love big electrostatics and much like the peerless Plasma tweeters, think they are the real deal when you don't need masses of bass or extreme loudness.

One of the reasons I went to horns is that the vast majority of standard moving coil bass units have high mass and high inertia which all slows down the output and adds to the muddle and sluggishness / lack of dynamics.
Title: Re: The Line Magnetic LM-502CA Dac
Post by: kajak12 on September 26, 2014, 09:35:53 PM
Hmmmm, well if by thin you mean as fast as grease lightning with no overhang (ringing) and the ability to hear deep into the mix then yes, some may be thin. IME most do not know how to set them up within a room and place them too close to rear walls which robs them of body and bass.  This would account for a thin- devoid of body result, poor placement.  I love big electrostatics and much like the peerless Plasma tweeters, think they are the real deal when you don't need masses of bass or extreme loudness.

One of the reasons I went to horns is that the vast majority of standard moving coil bass units have high mass and high inertia which all slows down the output and adds to the muddle and sluggishness / lack of dynamics.

post 128 is the setup
Title: Re: The Line Magnetic LM-502CA Dac
Post by: ozmillsy on September 27, 2014, 09:43:32 AM
Yes in Melbourne last year before stevem bought them.................i would not buy them
Yeah, I forgot about that trip.

I didnt hear Bryans panels, so cant comment.

1 of the biggest challenges in audio, is in the language we use.    Ribbons/electrostatic panels have a certain character that you either love, or don't.   The upside is a great sense of naturalness.  Some downsides are really narrow sweet spot (tilt your head and you can lose it), but also flattish soundstage (front to back flat I mean),  for me, you dont get the same sense of 3 dimensionality as a front loaded horn system.   This latter aspect has a direct correlation to the sense of flesh/meat on the bones.

Doesnt mean you cant get it. Its just hard work to give the system those things it needs. 

Everytime I listen to Quads, I like them.  But I couldnt live with them.

The panels were reported to deliver everything good about electrostats,  with all the things that were lacking in traditional panel/ribbon speakers.   I have to hear them sometime.
Title: Re: The Line Magnetic LM-502CA Dac
Post by: Jehuty on September 27, 2014, 08:50:09 PM
Bryan also thought his electrostatic panels where better then his golden horns,i dont think so golden horns are the ones to beat electrostatic panels are thin.........

I like the look of his golder horns too, especially when they're compared to the electrostat panels.
Title: Re: The Line Magnetic LM-502CA Dac
Post by: Lansche plasma guy on September 28, 2014, 12:35:40 AM
Hi Guys,

It's been a while.  I've been super busy with business and moving but thought I would check in and say hello when a fellow member mentioned there was some talk of my experience of the LM dec.

Oh and just to set the record straight.  The direct drive electrostatics I owned to my ears where definitely not 'thin' by any stretch of the imagination. 

They may have sounded that way to others but that is for them to judge.  In fact I purposefully tuned them to have two little bumps in the response to make them sound full and rich which I think works particularly well with all dipole speakers to lessen this possible quality.

I absolutely loved them.  I would very happily still have them now if my new business at the time did not need funds.

They were also tuned for me in my room.  The tuning will not work no matter what anyone says in another room.  They will work in a fashion and perhaps very well but my delay line was designed by me to have a very tailored response for my room.

The were nowhere near the rear wall.  They were something like ten feet from the back wall.

When Mario and the boys heard them I mentioned many times that what they were hearing was a small approximation of how good they can actually sound because my CEC was being modded and another particularly crap sounding transport was in its place.

Mark another member here heard them with the CEC when it came back as did Rab and Greg and each person was in awe of the sound.  Valve direct drive full range electrostatics done right as these where are absolutely one type of state of the art and sounded truly incredible.  They had a couple of weak points and a particular sound like all systems.  Lets not fool ourselves into thinking everything is perfect.  It's all about crafting a system to get the result we want.  Bras were invented for a reason!

Now back to the Line Magnetic Dac.

We all know about the Killerdac after all this is the Killerdac forum.  Not all killerdacs are created equal.  I have no doubt that Steve being the originator of the final iteration of the Kusonoki circuit which I got Scott Thompson to do has I would think a Killerdac which is another league to all of ours (if it had a 6c45 pi tube in it anyway which is another story).  So we aren't really comparing apples with apples.

I can say compared to my killerdac and Marks killerdac there was absolutely no contest.  It was killed.  Sorry guys if i'm stepping on any toes and telling them they're girlfriend is ugly but its the truth.

Now i'm not talking about the standard Line Magnetic Dac.  I'm talking about my modified Line Magnetic Dac.

Let's wind back a little. 

I've been reading about WE 555 field coil compression drivers and researching permanent magnet alternatives as a possible future Azurahorn ah160 mid bass candidate to replace the Fane 8m.  I noticed on a few websites many of these setups using some very expensive Line Magnetic replica 555 drivers used by some German audiophiles.

I reasoned that some of these systems being super expensive could have used any dec but time after time I saw systems with this dec in place.  I then spoke with some people about the Line Magnetic story and got more curious about they're dec.  They seemed to be a company that didn't f…k around.  They seemed to do stuff properly.  I was told that they may have a factory in china but they were Korean and very serious audio maniacs and made some amazing stuff which made me more curious again.

I've often said to Steve that in an ideal world none of us would be f….g around with the old schools tda1541 and that we would do the same sort of mods that I originated and then Steve greatly improved and perfected when i got bored and stopped playing with it to a newer chipset that could deal with higher sampling rates etc (yes the no dsd is a bummer but not a deal breaker……for me).

When I read all the stuff about the Line Magnetic I thought it would be fun to explore.  Cheap, current dec chip which plays high res too through usb, valve rectification and output tubes.  Potentially interesting stuff.  The negatives where that i've heard quite a few sabre dacs and they all sucked big time.

I was hoping that it would sound ok stock and could pretty great modified.  Probably not as good as the killerdac but would be good to use for the vinyl rip and reel to reel style files floating around.

I was very surprised that right out of the bat with no mods it sounded really good.  really really good.  Let's open this puppy up and start to mod her and see what she can do says me.

Asking a few knowledgable friends about parameters of the dec started me on a path.

First to change was the 12au7 stock chinese crap to some very very nice 12au7's.  Wow pretty big improvement.  Nice.  Next was changing the rectifier from the fake chinese 6x4 to a proper gun brand new vintage version.  Wow.  Massive improvement.  Like really massive.  Hey I think this thing is very responsive to tweak i think.  Lets do some more stuff.

Next to change was the wiring.  Out goes very nice but stock wire to the sockets and in goes my beautiful 1930's/ 1940's hair thin German Nazi wire.  In goes some of my Yamamura wire.  This resulted in another really great improvement more in line with the 12u7 change.  Next i changed the coupling caps from the pretty average german caps to some Silver/ Gold in oil Mundorfs.  Wow really amazing now.  I'll put my Duelunds in soon.

So i'm only partly through mods. There is way more to do.  In the next week or so I will be doing some pretty serious power supply mods and resistor substitution and some other stuff.

But as it stands stock its very good.  With the above mentioned mods it was in a different higher league to everything its gone against so far including the 48kg 14.5k dollar AMR and both Killerdacs.  Now just in case someone wants to talk about these killerdacs being poor examples I can tell you that mine is at the top of the tree next to or maybe slightly behind Steves.  Marks also cost him $6k has all the mods and is a very late model unit which Steve himself said to me are better than the older units.  So we are not talking grandmas knickers here.

The Line Magnetic with the mods above was not just a little better, it was in a different league.  It really was.  Each of the guys who's' systems we have heard it in has either ordered one or is about to.

Steve has created an incredible dec.  Something which is much better than what Scott started and I subsequently tuned for a while.  Its a real credit to him.  But I believe after hearing these new chips they have the potential to play at a much higher level. 

LETS GET MODDING AND HAVE SOME FUN WITH SOME OF THE NEW CHIPS!!

Lansche Plasma Guy.
Title: Re: The Line Magnetic LM-502CA Dac
Post by: vitavoxdude on September 28, 2014, 10:55:01 AM
Interesting post regarding the kings new clothes in DAC's.  Good to know it can be purchased for a relatively low price in the audio candy shop.  We will have to get Tuyen to buy one so we in the West can find out for ourselves. ;)

Having an audio habit that resides just behind having to eat, there are many many DAC's out there all vying for our pay checks and many, much like bits of skirt attract your manly attention, and at first it's lust and fantasy, however once the initial newness has worn off and the additional detail and sharpness around notes wears off, you yearn for not having to keep trying to impress. :-X

The KD for me is like a comfy pair of slippers, something you don't worry about if it's going to impress your friends as you know in the long run it will continue to provide enjoyment of the honest kind without having to look over your shoulder for the presence of the Wife. :o
Title: Re: The Line Magnetic LM-502CA Dac
Post by: zenelectro on September 28, 2014, 01:41:22 PM

Having an audio habit that resides just behind having to eat, there are many many DAC's out there all vying for our pay checks and many, much like bits of skirt attract your manly attention, and at first it's lust and fantasy, however once the initial newness has worn off and the additional detail and sharpness around notes wears off, you yearn for not having to keep trying to impress. :-X

Yeah, I often think I would mind getting what's in my DAC's into what's in that Skirt......   this is a family show isn't it....  it's all about dacs and skirts     :D :D
Title: Re: The Line Magnetic LM-502CA Dac
Post by: stevenvalve on September 28, 2014, 02:48:43 PM
Hi Guys,



I can say compared to my killerdac and Marks killerdac there was absolutely no contest.  It was killed.  Sorry guys if i'm stepping on any toes and telling them they're girlfriend is ugly but its the truth.



Lansche Plasma Guy.
Bryan also mentioned to me the Line Magnetic LM-502CA Dac also killed a $100,000 Caliburn turntable setup, i must say that statement sent alarm bells ringing in my head. This new Dac seems promising alright.  At least it runs the average performer 6X4 valve rectifier and nice 12AU7 output. Bryan told me it's on loan from this importer friend, and he is hotting this DAC up for this friend before the Melbourne HIFI show. After Bryans amazing statements, i talked to mark (who owns the latest KD) and asked near the end of our small talk, what do you think of Bryans hotted up Line Magnetic LM-502CA Dac, He replied,  it's pretty good.  I am afraid it looks like, it killed it (Bryans words) was though Bryans ears. We will see when i get Bryan Hotted up dac here, but don't hold your breath that he will send it up. I have had so many of the latest and greatest DAC here, and like Bryan they all sprouted that it will kill my KillerDAC, but alas it was there dacs that where killed. Will this one be any different,  time will tell. But don't sell your Killerdac  just yet.
Title: Re: The Line Magnetic LM-502CA Dac
Post by: stevenvalve on September 28, 2014, 03:39:18 PM
Speaking of DACs and things, System synergy is everything in my opinion. A wile ago i decided to try my Killerdac on my leak stereo 20, Quad 57 setup. Now here is a Speaker with great strengths but is lacking a little leading edge, it's a little polite, and a little rolled off. The DAC i was using was a Pioneer Professional DVD player, clean and clear, with lot of leading edge attack. (Great match with the quads).  I put on the Killerdac, fired it up expecting brilliant sound, but what i got was ordinary. It reinforced what i already knew.... Synergy is everything. Does that mean upon first listening that the Pioneer Professional DVD player was better. Obviously it is not, but then and there for that first hour it was. I could have told the world that the Pioneer DVD is better than a killerdac, But in the long run I would have ended up an idiot. As we all know you need to build a system as a whole, make it sound utterly spectacular then make conclusions, then and only then tell the world. I quickly reworked the Killerdac and within 2 hours achieved very good sound. It just blitzed that pioneer, the status quo returned.
Title: Re: The Line Magnetic LM-502CA Dac
Post by: Rob181 on September 28, 2014, 04:26:08 PM
We will see when i get Bryan Hotted up dac here, but don't hold your breath that he will send it up. I have had so many of the latest and greatest DAC here, and like Bryan they all sprouted that it will kill my KillerDAC, but alas it was there dacs that where killed. Will this one be any different,  time will tell. But don't sell your Killerdac  just yet.

If the LM 502 CA does arrive & sound ordinary in your system...will that be synergy or because the DAC is not as good as the KD.

If you had to "retune" the KD to suit the Leak/Quad setup...why could you not "retune" the LM 502 CA to suit your system...then compare the two...

The added benefit of course is that you also have access to computer audio at rates above 44...
Title: Re: The Line Magnetic LM-502CA Dac
Post by: stevenvalve on September 28, 2014, 07:07:07 PM
If the LM 502 CA does arrive & sound ordinary in your system...will that be synergy or because the DAC is not as good as the KD.

If you had to "retune" the KD to suit the Leak/Quad setup...why could you not "retune" the LM 502 CA to suit your system...then compare the two...

The added benefit of course is that you also have access to computer audio at rates above 44...
Rob the killer Dac standard is already full on. First we have to buy this LM 502 CA, then because its not good enough standard and we are crazy audiophiles, rebuild it with all the best gear, now its not so cheap,  As for parts, the ES9016 Sabre DAC chip it uses, is just not as good sound wise as a good genuine Holland TDA1541A S1 or S2. On the valve output stage, it uses a 6X4, this is a Ok  sounding type of rectifier but not in the league of a 1950s 60s GEC brown base U52/5U4G, maybe the best rectifier there is. The circuit will be housed with electrolytic capacitors, and is not nearly as direct or simple. So even if I retuned it till the cows come home theoretically it will not end up being as good. But there is always a but, on some floored (example Quads 57) or underperforming systems, it could be considered better. There is always a system somewhere that will like a good to average Dac. It's always the Synergy thing. There is so much bullsh!t in HIFI Speak, it really takes lateral thinking to sort the wheat from the charf and then make sense of it.
Title: Re: The Line Magnetic LM-502CA Dac
Post by: stevenvalve on September 28, 2014, 07:26:26 PM


The added benefit of course is that you also have access to computer audio at rates above 44...
Yes that will be great, but when it does DSD then I will have a play.
Title: Re: The Line Magnetic LM-502CA Dac
Post by: Mark OTL on September 28, 2014, 09:47:58 PM
Hi Guys, I guess I should chime in here. I'm the "Mark" Brian and Steve are talking about, and I currently have a loan of the the LM 502.CA for a week to see what I think of it. When Steve called, I had heard it in one session,.....at night, midnight onwards,..... well off center,.... as my guests were in centre stage, and while quite sleepy.
So, yes, when asked by Steve what it sounded like my system, (which at it's new home, is sounding better than it ever has), I replied "it's pretty good".
Because of all the negative elements in the first impression listen, I was very reserved because I wanted to get a better grip on what it was doing to the sound while more awake, in the center, and with a good cross section of music I know well. It is so very different to the KDac's sound. This is neither good or bad yet, just very different, so let me live with it for a week, and I'll give you guys a more balanced view of what I'm hearing, but first impression is actually very high.

I should mention that the Sabre DAC when implemented well, does sound excellent, and I've heard this first hand on my own system for extended periods. It was a "from the ground up" custom build, but demonstrated the potential of the Sabre Dac. I should also comment on the 502's build. It's near fanatical, and does not reflect a mass produced product in this price bracket. Power supply is segregated from signal boards and shielded, Toriod for digital, EI Tranny for Analogue. Beautiful, logical layout. Chassis is high end "entry level" only, neat and clean, but not milled from solid etc. which is why the price is not double that asked. Quality of components is very good for the price asked.

Oh, and FWIWorth, Brian's panel were not thin in the midband when I returned his CEC TL-1 after modding it to see what it sounded like in his system. Seriously real dynamics, sizzling speed, and yes, fully fleshed out midband, rich and sweet. Perhaps the system was sulking when heard as "thin" previously. Brians always tweaking, so anythings possible.

Cheers, Mark.
Title: Re: The Line Magnetic LM-502CA Dac
Post by: zenelectro on September 28, 2014, 09:50:46 PM

As for parts, the ES9016 Sabre DAC chip it uses, is just not as good sound wise as a good genuine Holland TDA1541A S1 or S2.

Steven, you can't really make that statement unequivocally.

The Sabre DAC chip itself can be set up in many different ways and they all sound potentially somewhat different. It would take some time
to go through optimization of just the chip itself to see what it is really capable of.

Once you add the analog stage possibilities, power supplies, clocking it's a much more complex equation than the simple country boy 1541 into a
valve approach.

This also means the development is much more tricky. To do it properly and get absolute best from the Sabre DAC really requires a clean slate
approach as opposed to the usual modify this kit etc etc.

Z

 
Title: Re: The Line Magnetic LM-502CA Dac
Post by: klackto on September 28, 2014, 10:22:13 PM
What I'd like to ascertain wrt the L M Dac is whether the output stage is truly tube based or is it a tube buffer that follows a solid state stage(as is often the case with units that have switchable outputs). Also of interest, when Bryan compared the two dacs .... were both using spdif?  If that's the case, from what I've read, the KD would've been somewhat shackled compared to i2s.
Title: Re: The Line Magnetic LM-502CA Dac
Post by: stevenvalve on September 29, 2014, 12:18:19 AM
Hi Guys, I guess I should chime in here. I'm the "Mark" Brian and Steve are talking about, and I currently have a loan of the the LM 502.CA for a week to see what I think of it. When Steve called, I had heard it in one session,.....at night, midnight onwards,..... well off center,.... as my guests were in centre stage, and while quite sleepy.
So, yes, when asked by Steve what it sounded like my system, (which at it's new home, is sounding better than it ever has), I replied "it's pretty good".
Because of all the negative elements in the first impression listen, I was very reserved because I wanted to get a better grip on what it was doing to the sound while more awake, in the center, and with a good cross section of music I know well. It is so very different to the KDac's sound. This is neither good or bad yet, just very different, so let me live with it for a week, and I'll give you guys a more balanced view of what I'm hearing, but first impression is actually very high.

I should mention that the Sabre DAC when implemented well, does sound excellent, and I've heard this first hand on my own system for extended periods. It was a "from the ground up" custom build, but demonstrated the potential of the Sabre Dac. I should also comment on the 502's build. It's near fanatical, and does not reflect a mass produced product in this price bracket. Power supply is segregated from signal boards and shielded, Toriod for digital, EI Tranny for Analogue. Beautiful, logical layout. Chassis is high end "entry level" only, neat and clean, but not milled from solid etc. which is why the price is not double that asked. Quality of components is very good for the price asked.

Oh, and FWIWorth, Brian's panel were not thin in the midband when I returned his CEC TL-1 after modding it to see what it sounded like in his system. Seriously real dynamics, sizzling speed, and yes, fully fleshed out midband, rich and sweet. Perhaps the system was sulking when heard as "thin" previously. Brians always tweaking, so anythings possible.

Cheers, Mark.
It will be interesting mark. I want a HI RES dac that runs via a computer transport, plays DSD direct, it must play all formats. The main Problem is it must sound like analogue  music, real with no digital artefacts at all, It must have great timbre plus musicality. None so far have done that, except one. Well hopefully nearly as good as my master tapes with my valve output. If this machine does that, I will wait for the next model and if it will play DSD, then I will spend on some new internal bits.   
Title: Re: The Line Magnetic LM-502CA Dac
Post by: Tuyen on September 29, 2014, 11:17:19 AM
We will have to get Tuyen to buy one so we in the West can find out for ourselves. ;)

You may be waiting a long time, as I am currently content with my current DAC solution.   The LM-502CA DAC doesn't have any other useful features that I am after.

Also as I reckon my hearing abilities are not as acute as the more senor audiophiles kdac/cd transport users on the forum, I don't pickup the sonic deficiencies with CA transports or DACs with no tube output stage.   I guess it could be seen as a fortunate thing  :)
Title: Re: The Line Magnetic LM-502CA Dac
Post by: kajak12 on September 29, 2014, 01:09:50 PM
You may be waiting a long time, as I am currently content with my current DAC solution.   The LM-502CA DAC doesn't have any other useful features that I am after.

Also as I reckon my hearing abilities are not as acute as the more senor audiophiles kdac/cd transport users on the forum, I don't pickup the sonic deficiencies with CA transports or DACs with no tube output stage.   I guess it could be seen as a fortunate thing  :)
Tuyen sell the lot and start a family ;)
Title: Re: The Line Magnetic LM-502CA Dac
Post by: ozmillsy on September 29, 2014, 11:01:31 PM
Also as I reckon my hearing abilities are not as acute as the more senor audiophiles kdac/cd transport users on the forum,
Not sure about that,  you seem quite capable of describing the differences you hear with swapping out different parts.   
Quote
I don't pickup the sonic deficiencies with CA transports or DACs with no tube output stage.   I guess it could be seen as a fortunate thing  :)
Maybe you just know what you like?   

Here is a funny thing, that some people cant get there heads around,  our brains naturally tune out imperfections.    A number of months ago a friend of mine was diagnosed with a life threatening tumour, that was sitting right behind his eyes, larger than the size of a golf ball.   In having the tumour removed his vision from his right eye has been impacted,  at first this was impacting his general vision,  but his brain retrained itself to work around it,  and his vision is now practically normal.   He knows his right eye is still not right when he closes his good eye,   but his brain has learnt to compensate around it's deficiencies.    He's a lucky man,  things could have gone so much worse for him.

What is the relevance of that?   Well,  I reckon we can easily and quickly get "used" to our systems sounding a certain way, and after awhile we hear all it's strengths and tend to disregard the weaknesses.   It's a bit like drinking the same type of coffee everyday,  you become accustomed to it, and learn to love it.   Before too long, other types of coffee dont taste right.      Does that mean they arent right?   [shrugs]

Someone can describe to you the deficiency of your coffee,  and when you drink it, all you are tasting is all the things you like about it.   This is completely natural,  it's how our brains work.

Running hi-res computer source, into a nice sounding hi-res dac,  will have strengths that many people tune in to and cant live without.

   
Title: Re: The Line Magnetic LM-502CA Dac
Post by: ozmillsy on September 29, 2014, 11:07:33 PM
Because of all the negative elements in the first impression listen, I was very reserved because I wanted to get a better grip on what it was doing to the sound while more awake, in the center, and with a good cross section of music I know well. It is so very different to the KDac's sound. This is neither good or bad yet, just very different, so let me live with it for a week, and I'll give you guys a more balanced view of what I'm hearing, but first impression is actually very high.
Look forward to hearing your further impressions Mark.   It sounds promising.   
Title: Re: The Line Magnetic LM-502CA Dac
Post by: stevenvalve on September 30, 2014, 12:53:43 AM
Mark, Do have the original valves in your Kdac.
Title: Re: The Line Magnetic LM-502CA Dac
Post by: stevenvalve on September 30, 2014, 12:58:45 AM
Steven, you can't really make that statement unequivocally.

The Sabre DAC chip itself can be set up in many different ways and they all sound potentially somewhat different. It would take some time
to go through optimization of just the chip itself to see what it is really capable of.

Once you add the analog stage possibilities, power supplies, clocking it's a much more complex equation than the simple country boy 1541 into a
valve approach.

This also means the development is much more tricky. To do it properly and get absolute best from the Sabre DAC really requires a clean slate
approach as opposed to the usual modify this kit etc etc.

Z
If that's the case why no has one optimized it properly. After all its been around a long time.
Title: Re: The Line Magnetic LM-502CA Dac
Post by: Greg Erskine on September 30, 2014, 06:14:41 AM
If that's the case why no has one optimized it properly. After all its been around a long time.

How old was the 1541 before the KD was developed?
Title: Re: The Line Magnetic LM-502CA Dac
Post by: skc on September 30, 2014, 07:29:31 AM
If that's the case why no has one optimized it properly. After all its been around a long time.

You mean optimised it properly to your liking in your opinion. No offence Steve, but the arrogance of some of the statements made on this forum from time to time is staggering.
Title: Re: The Line Magnetic LM-502CA Dac
Post by: stevenvalve on September 30, 2014, 12:46:04 PM
How old was the 1541 before the KD was developed?
The TDA1541A has been around,,, well I have chips with 1987 date codes.
Title: Re: The Line Magnetic LM-502CA Dac
Post by: stevenvalve on September 30, 2014, 12:54:40 PM
You mean optimised it properly to your liking in your opinion. No offence Steve, but the arrogance of some of the statements made on this forum from time to time is staggering.
I guess the perceived arrogance comes with experience, If you do this audio thing long enough, you end up with opinions, and if you are real good at it, they are usually right.   
Title: Re: The Line Magnetic LM-502CA Dac
Post by: stevenvalve on September 30, 2014, 01:08:53 PM
You mean optimised it properly to your liking in your opinion. No offence Steve,
Opinion has nothing to do with the truth, There is 100,000 + audiophiles opinions, only one really matters, the Cello's. It's telling you what music sounds like, so is that guitar etc. They are the only opinion that matters.
Title: Re: The Line Magnetic LM-502CA Dac
Post by: skc on September 30, 2014, 02:02:35 PM
Ah yes, how silly of me. I forgot that only "live unamplified cello and guitar music" matters. Best I ditch the other 98% of my music collection pronto! :)
Title: Re: The Line Magnetic LM-502CA Dac
Post by: stevenvalve on September 30, 2014, 02:18:10 PM
Ah yes, how silly of me. I forgot that only "live unamplified cello and guitar music" matters. Best I ditch the other 98% of my music collection pronto! :)
You are missing the point, You use these and other unamplified instruments as a tuning tools, they are telling you the sounds to aim for. If you are into heavy metal go there.
Title: Re: The Line Magnetic LM-502CA Dac
Post by: skc on September 30, 2014, 03:29:06 PM
^ if I am missing the point, why do the systems which sound great on guitar/cello always sound compromised on electronic / rock / symphonic music?
Title: Re: The Line Magnetic LM-502CA Dac
Post by: hedalfa on September 30, 2014, 04:23:10 PM
^ if I am missing the point, why do the systems which sound great on guitar/cello always sound compromised on electronic / rock / symphonic music?

Tuning for the subtle timbres that instruments like cello convey is significant design and tuning challenges. To get it some power handling ,dynamics and other characteristics may be traded away. Maybe there are a few out seeking it all yet I suspect that part of the answer is that aren’t many who are trying to get it all. Part of the reason I suspect isn’t necessarily technical or pure design rather plain and simple motivation.  Timbrel rightness hearing it an tuning for it is ‘fringe stuff’, it is far away from mainstream.  Having said that its not the case a system has to be compromised for Systems electronic / rock / symphonic music, when doing guitar cello very well, though that’s lifted the bar up really high.
Title: Re: The Line Magnetic LM-502CA Dac
Post by: stevenvalve on September 30, 2014, 04:29:09 PM
^ if I am missing the point, why do the systems which sound great on guitar/cello always sound compromised on electronic / rock / symphonic music?
Do they...... Aren't you the one that said in your previous post, quote (but the arrogance of some of the statements made on this forum from time to time is staggering)
Title: Re: The Line Magnetic LM-502CA Dac
Post by: ozmillsy on September 30, 2014, 05:02:25 PM
TJ's system is reported to do electronic/rock amazingly well.  Everyone who has heard it, says this.

Single driver system like mine is definitely compromised in comparison.   My system just cant put out the same SPL's/dynamics.

Different systems and approaches have different strengths. 
Title: Re: The Line Magnetic LM-502CA Dac
Post by: Mark OTL on September 30, 2014, 05:49:35 PM
Mark, Do have the original valves in your Kdac?
Lets try that again. Hi Steve, I'm currently using AWM Super Radiotron Shouldered Bottle rectifier and National Gold Line outputs. I really like the sound of this combination so have kept it like this for some time now.
Cheers, mark.
Title: Re: The Line Magnetic LM-502CA Dac
Post by: vitavoxdude on September 30, 2014, 05:54:03 PM
^ if I am missing the point, why do the systems which sound great on guitar/cello always sound compromised on electronic / rock / symphonic music?

Yes agree that tuning a system to reproduce a single instrument is not what it is all about, I think SV was using by way of example the Cello, not the only unamplified instrument worth using.  Many systems are capable of reproducing a Cello at realistic levels and it does not impose huge power requirements either, only finesse and clarity. Personally I like voice for trying to get midrange sounding realistic, plucked double bass and drums for lows and harps and triangles for the highs.

Getting Rock music to sound anything like live is really hard, not only do you need high reproduction sound level capability, you also need a lot of radiating area too.  To be able to energise the air in the same way a 100 watt Marshall does via 4, 12 inch celestions or a 20+ inch kick drum takes a serious amount of juice and is beyond most audio systems I have heard.  When Rock is turned down low, it fails to communicate in the same way IMV.

As stated before on this forum, it is very difficult to just have one pair of speakers do all genres of music as drum and bass do not have the same requirements as opera. I would imagine SV's system is tuned around his preferences and his type of music he likes, no different to a lot of us out there in the great audio playground.

I think SV would be the first to agree that an 8 watt vintage speaker driven by valves is not the best repro tool for loud rock music  ;D

I also think chipsets comes into it also somewhat with the old TDA chips being exceptional at certain music styles and the newer 24 bit chipsets have their own individual charm too. I own many different dacs with 14 to 24 bit chips and the bigger the numbers does not always equal improved sound at chez V.

IMV the TDA chip has an early roll off in the highs making it more 'romantic' or soft in the treble extremes, it also has higher distortion in the highs than modern chipsets, but that does not stop it in the KDAC implementation form sounding very good indeed.

There is no best in this regards, only different approaches to the reproduction of music in the home and I feel reasonably certain that most KDAC owners wouldn't claim they have the best (certainly not me).  Shame Tuyen is not buying a LM DAC :(, this will restrict being able to easily hear one; if LM's pedigree is anything to go by it should be pretty damn good as the FC speakers and Amps are terrific if expensive IMV.

I have lost a fair bit of bark over the last 43 years of audio addiction from my teens on my journey and am glad that I finally managed to arrive at a place where music can happen in a natural way via an older technology.  R2R is also fabulous with good tapes and even vinyl if you have deep pockets. I really do not think the consensus here is that the Sabre cannot be any good, only that it has probably not reached its zen in application outside of the designers lab.
Title: Re: The Line Magnetic LM-502CA Dac
Post by: skc on September 30, 2014, 06:06:34 PM

IMV the TDA chip has an early roll off in the highs making it more 'romantic' or soft in the treble extremes, it also has higher distortion in the highs than modern chipsets, but that does not stop it in the KDAC implementation form sounding very good indeed.

In other words; it is inherently suited to the particular type of music (favoured by some on this forum), and is less capable on other types of music. That's a vastly different proposition to being inferior because someone hasn't been able to "omtimise it properly".
Title: Re: The Line Magnetic LM-502CA Dac
Post by: ozmillsy on September 30, 2014, 06:36:09 PM
Well I reckon electronic is starting to sound pretty amazing on my system.   All the recent changes I have been making have played right into that genre nicely.

The metrum octave while no way considered a reference, is certainly in the modern sounding dac category, sounds rather ordinary in comparison (on electronic, rock and all other genres).
Title: Re: The Line Magnetic LM-502CA Dac
Post by: kajak12 on September 30, 2014, 07:01:31 PM
Lets try that again. Hi Steve, I'm currently using AWM Super Radiotron Shouldered Bottle rectifier and National Gold Line outputs. I really like the sound of this combination so have kept it like this for some time now.
Cheers, mark.
Houston we have a problem   (hi mark)
Title: Re: The Line Magnetic LM-502CA Dac
Post by: stevenvalve on September 30, 2014, 07:41:35 PM
In other words; it is inherently suited to the particular type of music (favoured by some on this forum), and is less capable on other types of music. That's a vastly different proposition to being inferior because someone hasn't been able to "omtimise it properly".
I for one have no doubt the TDA chip will and can be bettered on some forms of music, But who knows the TDA may also be better than the modern chips on most forms of music, Anyway Talk is cheap, If anyone thinks they have a better digital front end, my door is open, It always has been open, many have tried, one day it will happen, Maybe it will be the modified Line Magnetic LM-502CA Dac, Lets hope so. I what Hi res. But my gut feeling is it wont happen, but going on the modified Line Magnetic inside parts list it will at least will be closer that the others and probably (as most) be in some ways better.
 What are other DAC types up against. I play my Studio mastering machine Otari MTR 10, with a full valve output stage running Steve Hoffman master tapes, As you can imagine its absolutely amazing. then i fire up the DAC, the second it starts it's just so good, you do not feel short changed in any way, you do not want to turn it off. Interestingly most of the resent visitors never made it to the Reel to Reel machine, They where so blow away with the DAC they really did not care to change, that speaks for itself. Is it that good... well Yes, its better than good. So lets not fcuk around, bring the best DACs on offer, Lets see if a 30 year old Holland TDA15141A S2 can be beaten. Any takers
Title: Re: The Line Magnetic LM-502CA Dac
Post by: ozmillsy on September 30, 2014, 07:50:59 PM
If the reference is your tape machine, and we are comparing recordings taken off your R2R machine, played on various dacs, compared to, the R2R itself......

Then I think that is a reasonable yardstick to shoot for.  :)
Title: Re: The Line Magnetic LM-502CA Dac
Post by: stevenvalve on September 30, 2014, 07:58:18 PM
If the reference is your tape machine, and we are comparing recordings taken off your R2R machine, played on various dacs, compared to, the R2R itself......

Then I think that is a reasonable yardstick to shoot for.  :)
It's about Chip vs Chip, DAC Vs DAC.  Not tape.
Title: Re: The Line Magnetic LM-502CA Dac
Post by: Tuyen on September 30, 2014, 08:15:35 PM
I thought we had all agreed in the past that there is never such a thing as an absolute 'best' in this hobby. Just 'different'?    Or have we sadly reverted back to the mentality that it's either 'my way' or the 'wrong way'?   The feeling I'm getting reading through the posts on this thread certainly seems like the later.

Unless...  KDAC owners = Illuminati??  :o :P

Title: Re: The Line Magnetic LM-502CA Dac
Post by: kajak12 on September 30, 2014, 08:32:53 PM
I thought we had all agreed in the past that there is never such a thing as an absolute 'best' in this hobby. Just 'different'?    Or have we sadly reverted back to the mentality that it's either 'my way' or the 'wrong way'?   The feeling I'm getting reading through the posts on this thread certainly seems like the later.

Unless...  KDAC owners = Illuminati??  :o :P
WTF is illuminati?
absolute best = real music (how close can you get to it at home? is the difference...................
Title: Re: The Line Magnetic LM-502CA Dac
Post by: stevenvalve on September 30, 2014, 08:57:36 PM
I thought we had all agreed in the past that there is never such a thing as an absolute 'best' in this hobby. Just 'different'?    Or have we sadly reverted back to the mentality that it's either 'my way' or the 'wrong way'?   The feeling I'm getting reading through the posts on this thread certainly seems like the later.

Unless...  KDAC owners = Illuminati??  :o :P
Most people here don't own a KDac,  yes, as discussed before so true there is no absolute 'best,' I just what to put the sabre chip debate to bed. No one around the world raves about them, They have been around for a enough time to be sorted out  Anyway we are just having fun, nobody takes it all to seriously.
Title: Re: The Line Magnetic LM-502CA Dac
Post by: vitavoxdude on September 30, 2014, 09:05:39 PM
KDAC owners = Illuminati??  :o :P

................................................................................................ha ha ha ha ha ha ha ha ha ha ha aha..........the enlightenment draws ever nearer ;)
No one knows best here IMV.  We are all so different that common likes dislikes are bound to be a non ending flame war.  I really look forward to getting the chance of hearing the LM dac and if it is really good would buy it.

So Mr. T, what digital processor / DAC are you currently using post the DDDAC?  Must be good but we are yet to be informed.

V
Title: Re: The Line Magnetic LM-502CA Dac
Post by: ozmillsy on September 30, 2014, 10:03:51 PM
It's about Chip vs Chip, DAC Vs DAC.  Not tape.
In order to fairly compare dac vs dac, you need an independent baseline.

Tape on your system sounds amazing.
Whichever dac gets closest to the actual source (the amazing sounding tape), wins.
Pretty simple.

The problem with not doing it this way, is the comparisons are driven by the music choices (which recording better suits).
 
Title: Re: The Line Magnetic LM-502CA Dac
Post by: stevenvalve on September 30, 2014, 11:40:05 PM
In order to fairly compare dac vs dac, you need an independent baseline.

Tape on your system sounds amazing.
Whichever dac gets closest to the actual source (the amazing sounding tape), wins.
Pretty simple.

The problem with not doing it this way, is the comparisons are driven by the music choices (which recording better suits).
Yes, very astute indeed, I like your logic. Closest to the tape wins.
Title: Re: The Line Magnetic LM-502CA Dac
Post by: Jehuty on October 01, 2014, 12:48:52 AM
Yes, very astute indeed, I like your logic. Closest to the tape wins.

Then you gotta do it and first is your own KillerDac. It'll be fun!
Title: Re: The Line Magnetic LM-502CA Dac
Post by: ozmillsy on October 01, 2014, 07:24:14 AM
Bryan has to finish dialling in the LM, and we need to find a way to get it up here.

But I can feel a major GTG in the mountains coming on. :)
Title: Re: The Line Magnetic LM-502CA Dac
Post by: Tuyen on October 01, 2014, 06:19:24 PM
So Mr. T, what digital processor / DAC are you currently using post the DDDAC?  Must be good but we are yet to be informed.[/font][/size]
V

Still currently using a lightly tweaked 4 stack DDDAC1794NOS (with custom sowter opts)  fed via a WAVEIO USB-I2S interface board.  With the DAC being powered with a new power supply (heavy duty CLCLC design), I am quite satisfied with the performance.  The computer setup does make a noticeable difference to sq too (currently Win Server 2012 R2,  Fidelizer 6,  JRiver with memory play enabled).

I also still have a KDAC/modded CEC TL-1 transport combo here that I sometimes refer back to, just to make sure I'm not deluding myself too much.  :P

Oh, and finally a DIY Audial AYA-II USB/SPDIF DAC (TDA1541 16/44 based design with SS output stage) which sounds alright (usb implementation is old tech and I find sounds worse than spdif input), but overall can't say is anything special.
Title: Re: The Line Magnetic LM-502CA Dac
Post by: Tuyen on October 01, 2014, 06:25:22 PM
Bryan has to finish dialling in the LM, and we need to find a way to get it up here.

But I can feel a major GTG in the mountains coming on. :)

Would Bryan really be willing to send his modded LM DAC (tuned for his system and preferences I might add) up there for a 'shootout'?  With a more than likely chance of it getting shot down?  lol
Title: Re: The Line Magnetic LM-502CA Dac
Post by: ozmillsy on October 01, 2014, 09:51:37 PM
Bryan has bought his own 1541 dac up to Stevens before for a comparo,   so it wouldn't be the 1st time he's done that.

Everyone acknowledges the home ground advantage means alot.  These comparos arent really about winning or losing,  its about understanding where things are at.   If it even came close (the LM), this says alot.

It's unlikely we would see Bryan up here anytime soon, only due to his time commitments with his business.
Title: Re: The Line Magnetic LM-502CA Dac
Post by: Tuyen on October 01, 2014, 10:18:44 PM
I see I see.  Well I do hope one day he does manage to bring it up for others to have a listen and hopefully satisfy the curiosity.

Just thought it had read pretty obvious in Bryan's post, how he found it compared to his and Mark's KDACs. 

"I can say compared to my killerdac and Marks killerdac there was absolutely no contest.  It was killed."

Yet people trying to challenge/doubt his experience/opinion.   Is there really any need for this?
Title: Re: The Line Magnetic LM-502CA Dac
Post by: ozmillsy on October 01, 2014, 11:28:10 PM
Definitely love to hear it, sometime, somewhere.

Blue Mountains GTGs are a rockin good time.

Demoing the LM among friends would be awesome.  But as you say, unlikely.
Title: Re: The Line Magnetic LM-502CA Dac
Post by: gamve on October 02, 2014, 01:10:39 PM
I see I see.  Well I do hope one day he does manage to bring it up for others to have a listen and hopefully satisfy the curiosity.

Just thought it had read pretty obvious in Bryan's post, how he found it compared to his and Mark's KDACs. 

"I can say compared to my killerdac and Marks killerdac there was absolutely no contest.  It was killed."

Yet people trying to challenge/doubt his experience/opinion.   Is there really any need for this?

No we should all follow blindly and believe everything we are told  ;D (please read this in context to
tuyens question. I did not say I do not follow others advice but I did say that I like to think for myself
and form my own opinions rather than follow a pack mentality)

Brian's comment was his opinion. He also said the DAC killed a $100,000 turntable set up.
Now let's think about this for a bit, a 2K dac sounds better than a 100K tuntable. Don't know
about you but that instantly turns on my Bullhsit filter (note that the poster adds later that
the turntable might not have been set up properly)
I have not heard this new DAC so I have no opinion. (there it is in a nutshell. I value good advice
and to back up my statement I have in fact purchased one of these units to have a play with)

(Please read the following in the intention it was written. It is a generalization of my experience with sites
like SNA where some fanboy is always pushing the barrow for one of the site sponsors newest latest
and greatest)
Lots of hype usually means lots of BS and some sort of vested financial interest. I really like other peoples
opinions except when what they are really trying to do is flog me some latest and greatest piece of rubbish that
will be worth exactly 1 /10 of what it cost 3 months later.
Having had my rant I would like to add if this new device does indeed do what it claims then
expect that the price will probably triple into the next model which will probably be only half
as good as the original model.
Wonder how it compares up against my delightfully cheap, simple and unmodified Korg 100
DSD capable dac?

My apologies to anyone who did not read the (original) post in the correct context.
 
Title: Re: The Line Magnetic LM-502CA Dac
Post by: vitavoxdude on October 02, 2014, 02:36:12 PM
Yup, great post from the wise.
Title: Re: The Line Magnetic LM-502CA Dac
Post by: Tuyen on October 02, 2014, 05:57:54 PM
I get ya point Graham :)   

I guess I wonder what possible vested financial or other interests could Bryan possibly have with sharing what he has.  Unless his "business" is in fact being the mporter/distributor for LM products in AUS and he is making money from sales of these unit!   8)

The fact is, some of us know he has an excellent set of ears and amazing skill, hence able to build incredible sounding systems which some of us have been fortunate to experience.  Wouldn't that account for some reason to at least seriously consider/respect his opinions/claims?   

I understand things can be taken differently if we were discussing about a review published on an online magazine/site.   That's my take on the matter anyway.   

Then again, I have to admit, my bs filter/meter does also run high on a few things I've read or have been told in the past too.   I try best to contain myself most of the time though.  lol  :P
Title: Re: The Line Magnetic LM-502CA Dac
Post by: stevenvalve on October 02, 2014, 08:03:03 PM
I can not stress enough, Whether It's Marks system, mine, yours, there will always be a product be it amp, pre, Dac, transport, etc. that will gels with that system. Does that mean its a better sounding product, NO..... but right then and there on that system it is.
Title: Re: The Line Magnetic LM-502CA Dac
Post by: kajak12 on October 02, 2014, 10:35:22 PM
Still currently using a lightly tweaked 4 stack DDDAC1794NOS (with custom sowter opts)  fed via a WAVEIO USB-I2S interface board.  With the DAC being powered with a new power supply (heavy duty CLCLC design), I am quite satisfied with the performance.  The computer setup does make a noticeable difference to sq too (currently Win Server 2012 R2,  Fidelizer 6,  JRiver with memory play enabled).

I also still have a KDAC/modded CEC TL-1 transport combo here that I sometimes refer back to, just to make sure I'm not deluding myself too much.  :P

Oh, and finally a DIY Audial AYA-II USB/SPDIF DAC (TDA1541 16/44 based design with SS output stage) which sounds alright (usb implementation is old tech and I find sounds worse than spdif input), but overall can't say is anything special.
HOW MUCH IS WIN SERVER 2012 R2?
Title: Re: The Line Magnetic LM-502CA Dac
Post by: kajak12 on October 02, 2014, 10:59:18 PM
No we should all follow blindly and believe everything we are told  ;D

Brian's comment was his opinion. He also said the DAC killed a $100,000 turntable set up.
Now let's think about this for a bit, a 2K dac sounds better than a 100K tuntable. Don't know
about you but that instantly turns on my Bullhsit filter
I have not heard this new DAC so I have no opinion. Lots of hype usually means lots of BS
and some sort of vested financial interest. I really like other peoples opinions except when
what they are really trying to do is flog me some latest and greatest piece of rubbish that
will be worth exactly 1 /10 of what it cost 3 months later.
Having had my rant I would like to add if this new device does indeed do what it claims then
expect that the price will probably triple into the next model which will probably be only half
as good as the original model.
Wonder how it compares up against my delightfully cheap, simple and unmodified Korg 100
DSD capable dac?
Line magnetic $2k plus free stake knives delivered  ;)
Title: Re: The Line Magnetic LM-502CA Dac
Post by: Rob181 on October 03, 2014, 09:25:11 AM
Line magnetic $2k plus free stake knives delivered  ;)

Stake knives are not much good unless you have a problem with vampires...
Title: Re: The Line Magnetic LM-502CA Dac
Post by: Mark OTL on October 03, 2014, 12:23:46 PM
I can not stress enough, Whether It's Marks system, mine, yours, there will always be a product be it amp, pre, Dac, transport, etc. that will gels with that system. Does that mean its a better sounding product, NO..... but right then and there on that system it is.

Yep, this is indeed a point I've repeated over and over to so many enthusiasts over the years. I've heard many high dollars systems where the "quite excellent" components don't "synergise" properly, and the end result is very average,..or worse. Conversely, I've heard moderately price systems where the builder has taken the time to choose components that do synergise, and the result is pure musicality. An old story most or all of us has experienced at sometime. Like it or not, components do interact with each other,...and it's not all good! Whether it be impedance matching, or more complex interaction like signal reflection in digital cable, this part of system building cannot be ignored.
 
Before I post the result, I'll go back to my KDac tonight to be absolutely certain of the comparison. I usually find the differences in components becomes more obvious when going back to the original setup. A very strange human characteristic, but always seems to be the case in my experience.
I guess I should add, I also approach all new product with a sturdy BullHsit filter switched firmly on, and a questioning outlook. I first look for the financial links first to route out the money trails which will taint/sway the recommending of the component in question, or the condemning of a product for that matter. We should all approach new product with this attitude, be open minded always, but believe nothing until proven to you. I have no financial "angles" on LM502, I'll simply tell you what I hear.

Cheers, Mark.
Title: Re: The Line Magnetic LM-502CA Dac
Post by: zenelectro on October 03, 2014, 12:39:02 PM
No we should all follow blindly and believe everything we are told  ;D

Brian's comment was his opinion. He also said the DAC killed a $100,000 turntable set up.
Now let's think about this for a bit, a 2K dac sounds better than a 100K tuntable. Don't know
about you but that instantly turns on my Bullhsit filter
I have not heard this new DAC so I have no opinion. Lots of hype usually means lots of BS
and some sort of vested financial interest. I really like other peoples opinions except when
what they are really trying to do is flog me some latest and greatest piece of rubbish that
will be worth exactly 1 /10 of what it cost 3 months later.
Having had my rant I would like to add if this new device does indeed do what it claims then
expect that the price will probably triple into the next model which will probably be only half
as good as the original model.
Wonder how it compares up against my delightfully cheap, simple and unmodified Korg 100
DSD capable dac?

Gamv, I hear ya - and I do love the no BS style of your posts.

I think WRT turntables versus DAC's (and skirts) DAC's are consistently getting better so
they are often better than the TT. 

WRT Korg, I'm always surprised when people are comparing these to mega dollar digital playback.
I have mine in bits and you get what you pay for. It is packing an ADC, DAC, mic pre, etc etc into a complete
recording device with HDD and control so there are huge compromises in the electronic design. It has to be this way.

The actual quality of the ADC is very good the DAC is also pretty good. The rest needs a lot of work, ie; power supplies,
clocks, analog stages etc etc.
   
Z
Title: Re: The Line Magnetic LM-502CA Dac
Post by: Tuyen on October 03, 2014, 12:50:51 PM
HOW MUCH IS WIN SERVER 2012 R2?

Free. 180-day trial from Microsoft.   http://www.microsoft.com/en-us/evalcenter/evaluate-windows-server-2012-r2 (http://www.microsoft.com/en-us/evalcenter/evaluate-windows-server-2012-r2)
Just do a fresh re-install after 180 days is up  :)
Title: Re: The Line Magnetic LM-502CA Dac
Post by: gamve on October 03, 2014, 02:12:16 PM
Gamv, I hear ya - and I do love the no BS style of your posts.

I think WRT turntables versus DAC's (and skirts) DAC's are consistently getting better so
they are often better than the TT. 

WRT Korg, I'm always surprised when people are comparing these to mega dollar digital playback.
I have mine in bits and you get what you pay for. It is packing an ADC, DAC, mic pre, etc etc into a complete
recording device with HDD and control so there are huge compromises in the electronic design. It has to be this way.

The actual quality of the ADC is very good the DAC is also pretty good. The rest needs a lot of work, ie; power supplies,
clocks, analog stages etc etc.
   
Z

Zen,
The Korg DAC I'm talking about is not a recorder it is a totally new product...mmm let me find a link

http://www.korg.com/us/products/audio/ds_dac_100/

Have a gander
Title: Re: The Line Magnetic LM-502CA Dac
Post by: maniac phil on October 03, 2014, 03:05:39 PM
glowing review:
http://www.witchdoctor.co.nz/index.php/2013/06/line-magnetic-lm-502ca-vacuum-tube-dac-review/ (http://www.witchdoctor.co.nz/index.php/2013/06/line-magnetic-lm-502ca-vacuum-tube-dac-review/)

 “Shindo of China”     lol

some thoughts from Thorsten Loesch (he of AMR fame, http://www.amr-audio.co.uk/html/product_list.html
on JoeNet http://mailman.soundlist.org/mailman/listinfo/sound

< Had a look.

> 1 , using the U.S. ESS 9016 DAC chip

The ESS Chip's CAN be quite good, but they are not easy to implement right.

The problem is that DAC inside switches at an extremely high rate and
has no internal analogue filtering to slow things down, so the output
switches state at the external clock, usually 80MHz - 125MHz. There
are few options for analogue stages that stand the slightest chance to
deal with such a signal without getting out of shape.

The best implementation I know uses low value I/V conversion
resistors, followed by a high ratio stepup transformer also used as
lowpass filter, followed by some tube buffers. This is not a
commercial product BTW.

> 10 , transistor output op amp circuit using advanced ceramics NE5532, tube output circuit uses two 12AU7

The 5532 is really not an op-amp to deal with high rate unfiltered signals.

Maybe their tube section is better, unless of course it is just a
cathode follower.

Seeing the SNR they get from the ES9016 indicates a serious design problem.

It is easily possibly to exceed 120dB SNR using this DAC, only getting
98dB on the Op-Amp based output is poor. Possibly it is down to
ultrasonic noise and RFI from the DAC chip folding back into the audio
range.

Now how much does this say about what it will sound like to you? Not much.

But given what is there objectively I would strongly advise to listen
for oneself and not to buy blind, at least not without a solid 30 day
"no quibble" return policy. >
regards
Title: Re: The Line Magnetic LM-502CA Dac
Post by: stevenvalve on October 03, 2014, 05:46:40 PM
some thoughts from Thorsten Loesch (he of AMR fame, http://www.amr-audio.co.uk/html/product_list.html

Well, it shows not everyone of these manufactures has gone the way of the modern chip. Quote

Over the past decade, digital playback has veered off on a tangent, to sound ever more detailed and uninvolving. Hence AMR's CD-77 Compact Disk Processor had one aim and one aim only:

 "To bring compact disk playback back en par with the vinyl system."

That is, to put the life, emotion and enjoyment back into listening to compact disks. With this in mind, the CD-77 was developed to sound real, dynamic and most important of all, involving for the listener.

The core DAC is the classic "King of the Multibit" – Philips TDA1541A chipset. This chipset forms the heart of an extremely unique “Digital Engine” that is comprised of the latest Lattic’s CPLD and TI’s DSP devices. Through the proprietary Digital Master I/Digital Master II settings, the CD-77 is one of the select few digital components that is able to play "bit perfect" audio. This means music, not hifi is the result as the sound is just right because there is no artificial manipulation of the signal (so often found in almost all other machines).

Combined with the revolutionary “Gomez” analogue stage using pure New Old Stock valves throughout and a total of 5 dedicated audio specified transformers, the CD-77 brings the performance of CD back in-line with the very best vinyl has to offer.
Title: Re: The Line Magnetic LM-502CA Dac
Post by: kajak12 on October 03, 2014, 05:54:30 PM
Stake knives are not much good unless you have a problem with vampires...
Garlic kills vampires not knives
Title: Re: The Line Magnetic LM-502CA Dac
Post by: Rob181 on October 03, 2014, 09:32:37 PM
Garlic kills vampires not knives
You eat with steak knives...you kill with stake knives...especially ones covered in garlic...
Title: Re: The Line Magnetic LM-502CA Dac
Post by: kajak12 on October 03, 2014, 10:24:49 PM
You eat with steak knives...you kill with stake knives...especially ones covered in garlic...
Steak knives?? you buy the wrong steak meat i don't need a knife for my steak
Title: Re: The Line Magnetic LM-502CA Dac
Post by: ozmillsy on October 04, 2014, 11:12:07 AM
The Korg DAC I'm talking about is not a recorder it is a totally new product...mmm let me find a link

http://www.korg.com/us/products/audio/ds_dac_100/

Have a gander
It appears to run off usb power.
Title: Re: The Line Magnetic LM-502CA Dac
Post by: gamve on October 04, 2014, 12:39:31 PM
It appears to run off usb power.

Yes I hate the USB (Universal Shit Bus) But in this case the thing just works.
The thing I hate most about music played from a PC is that most people fcuk around  endleslly with
software, drives, fancy hardware etc (spew). Without exception I have never got through anybodys
high end PC music playback display without something fcuking up. Generally more time is spent pissing
around with the computer instead of listening to music.
The Korg software is very good and the DAC is a very honest product at the price. No it won't replace your
KillerDac but your killerDac won't play DSD files. I have found the korg will play most all file formats except
the idiotic FLAC (Fcuking Lousy Audio Compression.
Its not a world beater but it's a bloody good economical start for someone experimenting with PC audio.
The software and driver installs easily, worked strait away (on three PC's I tried it on) and in 100 Hours use
has not fell over once. Fcuk me a product that actually works....wonders will never cease
Title: Re: The Line Magnetic LM-502CA Dac
Post by: ozmillsy on October 04, 2014, 01:21:44 PM
I already have a usb powered dsd dac connected to a macmini,  playback software is Audirvana,  and it "just works".   Macmini has no problems accessing my files from home nas box.

It works.  But is a long way behind the Kdac.  Chalk and cheese really.

I yearn for a sub 4k dsd dac solution that sounds better than the Kdac.  It can be done, only a matter of time.
Title: Re: The Line Magnetic LM-502CA Dac
Post by: Mark OTL on October 04, 2014, 09:46:41 PM
Ok, so the jury's in on the LM 502 after quite  a lot of listening. This is a modified unit and has the original 6Z4 rectifier swapped out for a NOS GEC 6X4, and the output tubes swapped out to Mullard NOS 12AU7's "superman" version. The mains wiring was replaced with Yamamura multi strand Cu with cotton insulation, the output wire replaced with Bryans "nazi" solid Cu,... whatever that is, and the signal caps replaced with Mundorf Silver/Gold/Oils. Nothing dramatic, just simple touches. I can't really tell you what the sound of the "out of the box" unit is, I heard it briefly on an "alien" system, but on that system, just changing the rectifier tube had a considerable impact.

I can honestly say that the LM502 synergised beautifully with my system and while being fed by my modified CEC transport, it equaled or exceeded the sound my KDac in virtually every discernible listening parameter you can name. I fully understand what a politically incorrect statement this is on a site dedicated to the KDac, and I will be burned at the stake for declaring it, but sometimes you need to put aside your prejudices and just listen "without blinkers".

This Dac in it's modified form, excels in the 2 areas that I deem highest on my priority list. Dynamics and Timbrel Rendering. It's blindingly fast if the music calls for it, and it reproduces micro/macro dynamics with aplomb, it's just so damn engaging. This I think this is the word that came to mind over and over,....engaging. It's sense of pace and rhythm is beguiling, it just draws you in and involves you. Many times while trying to analyze, I would simply be drawn into the performance, and the analyzing would stop. This is a damn good indicator something special is in play.

Engagement is driven by dynamics and pace/rhythm, beauty is portrayed by timbrel rendering, whether vocals, or acoustic instruments, and this is where this DAC really turns it up a few notches. It's portrayal of timbre is superb, not euphoric, not smoothed over or "glassey", just simply stunning.

Another area of particular remark is the 502's spacial reproduction. The recreation of space around performers and the original sound space where the recording took place is just amazing. Transparency is another area of excellence. It's ability to show you right inside the music is just indeed uncanny.

Towards the end of the night, we replaced the Mundorfs with Deulunds, and no surprises there, is became more relaxed, and cleaner/sweeter.

I won't bore you with an extended review, I will simply say if you're near my place, (Geelong), or you have a chance to investigate this DAC somewhere nearby, go and listen carefully for yourself. Remember,..this was a modified 502, I cannot speak for the standard offering, but these mod's are easy to perform.

So, will I put my money where my mouth is? You better believe it! I'll buy one in these units in the coming weeks and perform the same mod's Bryan has, then see if there are other areas of performance gain.

Now, let the Witch Hunt begin!!
Title: Re: The Line Magnetic LM-502CA Dac
Post by: stevenvalve on October 04, 2014, 10:44:26 PM
It seems to have a real synergy with your system, and I can understand you need to buy one, it will be interesting when I get my hands on one of these units to see if it jells with my system. I wonder if you get one, where will you get the Yamamura multi strand Cu,  It is unoptianiom,  Nice Mark,   Ps, Craig will be down your way soon and he will have a listen, I will be interested in has comments.
Title: Re: The Line Magnetic LM-502CA Dac
Post by: Jehuty on October 05, 2014, 12:46:13 AM
Garlic kills vampires not knives

Pure silver knives do  ;D
Title: Re: The Line Magnetic LM-502CA Dac
Post by: Jehuty on October 05, 2014, 01:21:44 AM
Ok, so the jury's in on the LM 502 after quite  a lot of listening. This is a modified unit and has the original 6Z4 rectifier swapped out for a NOS GEC 6X4, and the output tubes swapped out to Mullard NOS 12AU7's "superman" version. The mains wiring was replaced with Yamamura multi strand Cu with cotton insulation, the output wire replaced with Bryans "nazi" solid Cu,... whatever that is, and the signal caps replaced with Mundorf Silver/Gold/Oils. Nothing dramatic, just simple touches. I can't really tell you what the sound of the "out of the box" unit is, I heard it briefly on an "alien" system, but on that system, just changing the rectifier tube had a considerable impact.

I can honestly say that the LM502 synergised beautifully with my system and while being fed by my modified CEC transport, it equaled or exceeded the sound my KDac in virtually every discernible listening parameter you can name. I fully understand what a politically incorrect statement this is on a site dedicated to the KDac, and I will be burned at the stake for declaring it, but sometimes you need to put aside your prejudices and just listen "without blinkers".

This Dac in it's modified form, excels in the 2 areas that I deem highest on my priority list. Dynamics and Timbrel Rendering. It's blindingly fast if the music calls for it, and it reproduces micro/macro dynamics with aplomb, it's just so damn engaging. This I think this is the word that came to mind over and over,....engaging. It's sense of pace and rhythm is beguiling, it just draws you in and involves you. Many times while trying to analyze, I would simply be drawn into the performance, and the analyzing would stop. This is a damn good indicator something special is in play.

Engagement is driven by dynamics and pace/rhythm, beauty is portrayed by timbrel rendering, whether vocals, or acoustic instruments, and this is where this DAC really turns it up a few notches. It's portrayal of timbre is superb, not euphoric, not smoothed over or "glassey", just simply stunning.

Another area of particular remark is the 502's spacial reproduction. The recreation of space around performers and the original sound space where the recording took place is just amazing. Transparency is another area of excellence. It's ability to show you right inside the music is just indeed uncanny.

Towards the end of the night, we replaced the Mundorfs with Deulunds, and no surprises there, is became more relaxed, and cleaner/sweeter.

I won't bore you with an extended review, I will simply say if you're near my place, (Geelong), or you have a chance to investigate this DAC somewhere nearby, go and listen carefully for yourself. Remember,..this was a modified 502, I cannot speak for the standard offering, but these mod's are easy to perform.

So, will I put my money where my mouth is? You better believe it! I'll buy one in these units in the coming weeks and perform the same mod's Bryan has, then see if there are other areas of performance gain.

Now, let the Witch Hunt begin!!

Thanks for the comprehensive report Mark. I look forward to hearing your system with the new DAC  ;)
Title: Re: The Line Magnetic LM-502CA Dac
Post by: Lansche plasma guy on October 05, 2014, 01:24:28 AM
No we should all follow blindly and believe everything we are told  ;D

Brian's comment was his opinion. He also said the DAC killed a $100,000 turntable set up.
Now let's think about this for a bit, a 2K dac sounds better than a 100K tuntable. Don't know
about you but that instantly turns on my Bullhsit filter
I have not heard this new DAC so I have no opinion. Lots of hype usually means lots of BS
and some sort of vested financial interest. I really like other peoples opinions except when
what they are really trying to do is flog me some latest and greatest piece of rubbish that
will be worth exactly 1 /10 of what it cost 3 months later.
Having had my rant I would like to add if this new device does indeed do what it claims then
expect that the price will probably triple into the next model which will probably be only half
as good as the original model.
Wonder how it compares up against my delightfully cheap, simple and unmodified Korg 100
DSD capable dac?


I really don't know what to say to this.  To say I was shocked and saddened reading it was a very strong understatement.  I thought we were all pretty good friends.  I also thought I would share with my friends the excitement and joy i've been feeling listening to this dac. 

My personal opinion is that it is a game changer.  It may be there are lots of game changers out there including Graham's Korg DSD dec that he seems to like.  Who knows?? 

All I know is what my ears tell me.  My ears tell me that with some basic mods this thing has been revelatory in every system i've put it in.  I wanted to share the joy i've been getting with everyone else. 

I'm not trying to shoot down the Killer Dac. 

And are you serious about the BS meter being on red alert when i said that it was in another league to the mega dollar turntable setup???   There are a lot of factors that could go into this.  Was the turntable correctly setup??  Who knows.

I really don't care.  I just wanted to share with you all my experience with something that costs very little sounds incredible to me and everyone who has heard it in my company so far. 

Vested financial interest.  Yeah right.  There is no vested financial interest.  I'm not the manufacturer.  I'm not the importer.  I'm not flogging anything to anyone.  Bill Mclean is the importer and he is a friend of mine and a lovely guy.  A lot of industry people are friends of mine.  Kind of normal when you've been fanatical about audio your entire life.  When it comes time I will get mine at cost or near cost.  I don't know what that will be yet.  This would have been the case regardless of everything else and whoever buys these things. 

I'm not selling Killer Dacs.  I'm not selling parts for killer dads.  I'm not selling a huge store of tubes and parts i've collected for the killerdac to all the owners every year or two and making money off it.  Really this is all pretty pathetic.  I thought it would be cool to mention the new dec to you guys so that you could experiment with some of this stuff yourself.  Heck you can even mod them and sell them as the new killer dec or something and make money from that.  Who knows??

I'll be getting the dec back of Mark next week and will do way more mods and i'll enjoy it myself and with my friends and you guys can do whatever you want to do.  I'm really sorry i've disturbed your forum rather than being personally attacked by people most of whom i thought where friends.  I won't be disturbing your forum with any new posts on all the mods i'll be making to my unit.
Title: Re: The Line Magnetic LM-502CA Dac
Post by: vitavoxdude on October 05, 2014, 03:00:33 AM
:) It is cool to bring to others attention a great DAC.  Look at all the replies and reads :)

Don't get too strung up about some of the comments, they are just fleeting thoughts for most and not aimed in a nasty way.  I think you have put the record very straight after some cast doubts, even I thought  oh no, another advert but its clear now that was not the intention.  Thanks for your continued support for this site, you are a valued member and proven magician of system assemblage ;).
Title: Re: The Line Magnetic LM-502CA Dac
Post by: skc on October 05, 2014, 12:57:09 PM
I'm not selling Killer Dacs.  I'm not selling parts for killer dads.  I'm not selling a huge store of tubes and parts i've collected for the killerdac to all the owners every year or two and making money off it. 

BOOM - and there it is; the precipitant to so much of the pathology evident on this site!!
Title: Re: The Line Magnetic LM-502CA Dac
Post by: stevenvalve on October 05, 2014, 01:44:43 PM

 

I'm not selling Killer Dacs.  I'm not selling parts for killer dads.  I'm not selling a huge store of tubes and parts i've collected for the killerdac to all the owners every year or two and making money off it. 
Some statement.... I do not sell Killerdacs, I don't build Killerdacs, I make no money from them at all, I don't sell parts virtually ever to anyone for them, I have not made any for years, So what are you on about Bryan, So who are you talking about.
Title: Re: The Line Magnetic LM-502CA Dac
Post by: stevenvalve on October 05, 2014, 02:06:04 PM
Ok, so the jury's in on the LM 502 after quite  a lot of listening. This is a modified unit and has the original 6Z4 rectifier swapped out for a NOS GEC 6X4, and the output tubes swapped out to Mullard NOS 12AU7's "superman" version. The mains wiring was replaced with Yamamura multi strand Cu with cotton insulation, the output wire replaced with Bryans "nazi" solid Cu,... whatever that is, and the signal caps replaced with Mundorf Silver/Gold/Oils. Nothing dramatic, just simple touches. I can't really tell you what the sound of the "out of the box" unit is, I heard it briefly on an "alien" system, but on that system, just changing the rectifier tube had a considerable impact.

I can honestly say that the LM502 synergised beautifully with my system and while being fed by my modified CEC transport, it equaled or exceeded the sound my KDac in virtually every discernible listening parameter you can name. I fully understand what a politically incorrect statement this is on a site dedicated to the KDac, and I will be burned at the stake for declaring it, but sometimes you need to put aside your prejudices and just listen "without blinkers".

This Dac in it's modified form, excels in the 2 areas that I deem highest on my priority list. Dynamics and Timbrel Rendering. It's blindingly fast if the music calls for it, and it reproduces micro/macro dynamics with aplomb, it's just so damn engaging. This I think this is the word that came to mind over and over,....engaging. It's sense of pace and rhythm is beguiling, it just draws you in and involves you. Many times while trying to analyze, I would simply be drawn into the performance, and the analyzing would stop. This is a damn good indicator something special is in play.

Engagement is driven by dynamics and pace/rhythm, beauty is portrayed by timbrel rendering, whether vocals, or acoustic instruments, and this is where this DAC really turns it up a few notches. It's portrayal of timbre is superb, not euphoric, not smoothed over or "glassey", just simply stunning.

Another area of particular remark is the 502's spacial reproduction. The recreation of space around performers and the original sound space where the recording took place is just amazing. Transparency is another area of excellence. It's ability to show you right inside the music is just indeed uncanny.

Towards the end of the night, we replaced the Mundorfs with Deulunds, and no surprises there, is became more relaxed, and cleaner/sweeter.

I won't bore you with an extended review, I will simply say if you're near my place, (Geelong), or you have a chance to investigate this DAC somewhere nearby, go and listen carefully for yourself. Remember,..this was a modified 502, I cannot speak for the standard offering, but these mod's are easy to perform.

So, will I put my money where my mouth is? You better believe it! I'll buy one in these units in the coming weeks and perform the same mod's Bryan has, then see if there are other areas of performance gain.

Now, let the Witch Hunt begin!!
Mark, Yamamura multi strand Cu. I have some of this wire in my amps, and i find it critical to use this wire to get the sound I am after, It has a glorious mid range beauty and involving nature. I find it can and does transform the sound of components I have used it in. It explains a lot about your impressions. If you what your new DAC to sound the same as Bryans you need to get some. Trouble is it's imposable to find. Luckily I have enough here to try if find these DACs cut it. So mark get some if you can, it does make a huge impact, and you will find it will not be the same without it.
Title: Re: The Line Magnetic LM-502CA Dac
Post by: vitavoxdude on October 05, 2014, 02:07:50 PM
:) OK ok, snipers riffles down boys or the moderators will split their sides laughing! :P :P :P :P :P
Title: Re: The Line Magnetic LM-502CA Dac
Post by: stevenvalve on October 05, 2014, 02:25:16 PM


Now, let the Witch Hunt begin!!
I think some people here have got the wrong idea. Myself and many others think that this is just game, it is just a hobby, a bit of fun, all for the common goal, a better HIFI. Almost all do not take this hobby that seriously. Some here really need to look at the important things in life. And this hobby is not one of them,  There is no Witch Hunt, Nobody really cares less,  I Know I don't. When your life is in jeopardy or someone you love, then you will realize what really matters, and HIFI does not even rate. The older you get the more you understand life.
Title: Re: The Line Magnetic LM-502CA Dac
Post by: stevenvalve on October 05, 2014, 02:30:58 PM
BOOM - and there it is; the precipitant to so much of the pathology evident on this site!!
Knowbody on this tread sells killerdacs. The only one who makes them, has not posted here for months. Only about 10 people on this forum even own them.
Title: Re: The Line Magnetic LM-502CA Dac
Post by: stevenvalve on October 05, 2014, 02:38:06 PM
:) OK ok, snipers riffles down boys or the moderators will split their sides laughing! :P :P :P :P :P
Yes... I am laughing, it is so funny, Immature human nature at its best, I just love watching, or in this case reading it. Boy do you learn a lot about people.   
Title: Re: The Line Magnetic LM-502CA Dac
Post by: Jehuty on October 05, 2014, 04:25:21 PM
It will be interesting mark. I want a HI RES dac that runs via a computer transport, plays DSD direct, it must play all formats. The main Problem is it must sound like analogue  music, real with no digital artefacts at all, It must have great timbre plus musicality. None so far have done that, except one. Well hopefully nearly as good as my master tapes with my valve output. If this machine does that, I will wait for the next model and if it will play DSD, then I will spend on some new internal bits.

Can this DAC be modded to play DSD too? It would be great if it can be done so that Steve can start working to get the best out of it. That's right Steve, start working. You play computer games too much!  :P

We have been talking about the hi-res KillerDAC in the past, haven't we? So, this could be it, the starting point  :)
Title: Re: The Line Magnetic LM-502CA Dac
Post by: kajak12 on October 05, 2014, 08:07:18 PM
Can this DAC be modded to play DSD too? It would be great if it can be done so that Steve can start working to get the best out of it. That's right Steve, start working. You play computer games too much!  :P

We have been talking about the hi-res KillerDAC in the past, haven't we? So, this could be it, the starting point  :)
Its not hirez its you tube and the man is called dean ray bring tears to my eyes with every song on xfactor
https://www.youtube.com/watch?v=A25i8tQClRg
Title: Re: The Line Magnetic LM-502CA Dac
Post by: Mark OTL on October 05, 2014, 09:00:09 PM
I think some people here have got the wrong idea. Myself and many others think that this is just game, it is just a hobby, a bit of fun, all for the common goal, a better HIFI. Almost all do not take this hobby that seriously. Some here really need to look at the important things in life. And this hobby is not one of them,  There is no Witch Hunt, Nobody really cares less,  I Know I don't. When your life is in jeopardy or someone you love, then you will realize what really matters, and HIFI does not even rate. The older you get the more you understand life.

Hi Steve, mine was intended as an amusing comment as enthusiasts are just that,...enthusiasts, and their systems bring them great joy, and it's easy to become attached to the gear that gives you that, and we have all experienced enthusiasts being "protective" of their gear physically, and in terms of performance credibility. So, I must say I thought I might cop a few jabs in the side for my impressions, but it seems all have taken it very well, and I'm sure most will seek out the Dac and draw their own conclusions, which is just what I hope will happen. At no point did I feel threatened by "steak knife" wielding psycho's or "garlic clove" slinging hordes, and yes, I have an excellent grip on my life values thank you.

Cheers, Mark.
Title: Re: The Line Magnetic LM-502CA Dac
Post by: stevenvalve on October 06, 2014, 12:37:26 AM
Mark.  I remember this guy, his name was Elson Silver, he still makes amps today. Many years ago he accused me of liking an Audio Research amp over his amplifier because it had a famous brand name, He was convinced that had to be the reason. Over time I was amazed how many people do actually think like that. I find that i must be neutral,  if someone thinks i built it, own it, or it has a famous brand name so it must be better, you will not improve the systems performance.
Title: Re: The Line Magnetic LM-502CA Dac
Post by: vitavoxdude on October 06, 2014, 01:56:13 AM
:) Yes big audio names do not always produce the best match for your setup.  Elson is a very talented designer and a experienced audio friend borrowed his big amps to drive his klipshorns, he said its the best amp he has heard and this bloke has around 6 different systems ranging from small to really large and I value his comments highly.  I also notice that Edgar Kramer uses Elsons power amps in his home reference system which also bodes well.

Audio research for me always produce a dry sound without too much body which is to its detriment at chez V.  I compared my pre and powers to a then top flight AR setup and the AR lost by a fair margin.

Mark appears to be undeterred by us audio bullies  ;) so more power to his elbow and thanks again for your contributions, they are valued.  I can see the Buddha buying a LM dac once it does DSD as he also seeks out diamonds in the murk of commercialism.  LPG has already modded one to high standards from what I read between the lines and Tuyen has shown us where to buy one for chump change.  Gosh I love this forum for bringing to our attention more sweeties in the candy shop, thank guys.
Title: Re: The Line Magnetic LM-502CA Dac
Post by: stevenvalve on October 06, 2014, 03:41:46 AM
  I can see the Buddha buying a LM dac once it does DSD as he also seeks out diamonds in the murk of commercialism.
 
I have been around long enough to know what smell like roses over there, could be some what wilted here, but at the price its hard to pass up for a play. One of the problems for me is Mark has changed the great valves that the Kdac was tuned around. He has chosen valves that really do sound very ordinary here. But as Mark said, he feels they suited his system. I will have to try one of these Dacs here first. Listening to a standard one will be meaningless. So I really need to Listen to this modified version, If it is better than mine here, well when the new model plays DSD am going to buy one and mod it. One word of warning, My KillerDac is at the top of its game, so finely tuned it is just amazing. Do I expect Bryans modified Dac to be better.....in some ways yes. Most good Dac are in some ways better. My gut feeling is in the areas that matter to me..... NO. Time will tell.  It's fun times in audio guys. PS, Apparently Gamve and plasma guy have kissed and made up. Good, again all is quite on the western front. 
Title: Re: The Line Magnetic LM-502CA Dac
Post by: vitavoxdude on October 06, 2014, 11:43:23 AM
And the playground returns to normal. British Bulldog game over. ;D
Title: Re: The Line Magnetic LM-502CA Dac
Post by: Tuyen on October 06, 2014, 12:22:58 PM
http://www.aliexpress.com/store/product/Five-Diamond-entity-Korea-magnetic-tube-hi-LM-502CA-digital-audio-decoder-Gold-Silver/1026221_1639867990.html (http://www.aliexpress.com/store/product/Five-Diamond-entity-Korea-magnetic-tube-hi-LM-502CA-digital-audio-decoder-Gold-Silver/1026221_1639867990.html)

Cheapest I could find on the aliexpress.     Still works out to be around $1k AUS delivered.

The only other interesting looking tubed based sabre dac I have found is Fikus'  Amber Lampi DAC. Does PCM and DSD.

http://www.lampizator.eu/newdac/lampizator/Amber_Lampi_DAC.html (http://www.lampizator.eu/newdac/lampizator/Amber_Lampi_DAC.html)

Base price of 1400euro which works out to be bit over $2k AUS.
Title: Re: The Line Magnetic LM-502CA Dac
Post by: zenelectro on October 07, 2014, 11:53:03 AM
I have been around long enough to know what smell like roses over there, could be some what wilted here, but at the price its hard to pass up for a play. One of the problems for me is Mark has changed the great valves that the Kdac was tuned around. He has chosen valves that really do sound very ordinary here. But as Mark said, he feels they suited his system. I will have to try one of these Dacs here first.


Steve, at this stage, in my mind at least, I think we are past the point of you being the final arbiter on whether the Line Magnetics / Sabre can cut the mustard on any
bodies system.

Brian and Mark have already proven that it is at least in the ballpark of a KillerDAC performance wise. They have both had versions of the KD and
if the KD lives or dies on a pair of OP tubes - well I hate to say it but your argument is looking pretty thin - read on.

I have already looked at close ups of the LM DAC and know quite a bit of it's implementation. I can say without doubt that there is substantial room for
improvement beyond the usual tweaks of changing wires, resistors and caps.

However, as I have also stated here in the past, Sabre is much like a sports car DAC that has a lot going on inside and requires special attention in many areas.
 
Quote

Listening to a standard one will be meaningless. So I really need to Listen to this modified version,


I don't really get where you are coming from here either. If you can critically listen to bits of 1" long wire and individual resistors then you should be able
to hear the potential of a DAC.

I don't have golden ears but I certainly easily heard the -potential- of my Sabre 9008 (older) DAC even though it is off the pace by quite a margin it does
many things fundamentally very well. Maybe as already suggested, we have too many vested interests here, be they financial, egotistical or whatever, as
soon as a Sabre based DAC comes along, the main players focus on what it -doesn't- do well and slander it.

My approach was the opposite and I listened to what it -does- do well and I found many fundamentally great things. 

Once you add up the other benefits such as high rez PCM and high speed DSD compatibility, it has a lot going for it.

Quote

If it is better than mine here, well when the new model plays DSD am going to buy one and mod it. One word of warning, My KillerDac is at the top of its game, so finely tuned it is just amazing. Do I expect Bryans modified Dac to be better.....in some ways yes. Most good Dac are in some ways better. My gut feeling is in the areas that matter to me..... NO. Time will tell.  It's fun times in audio guys. PS, Apparently Gamve and plasma guy have kissed and made up. Good, again all is quite on the western front.

Overall, IMV there's no question, the Sabre is -potentially- a more capable DAC than the 1541, but as I have stated before it is a very complex beast and you won't
get the absolute best out of it by doing the usual tweak tricks. It is a very different animal to the 1541 and requires a different approach. The 1541 is comparatively
slow running at clock speeds around 1/10th of the Sabre. It also is mostly class A transistor inside with low noise. The Sabre is high speed cmos = high speed
RF noise.

I am sure you will get reasonably good results with tweaking but to really extract top performance from this chip is like tuning a Ferrari. It requires
a lot of knowledge of it's design parameters and a complete circuit board up approach. It's no trivial task.

Terry

Title: Re: The Line Magnetic LM-502CA Dac
Post by: ozmillsy on October 07, 2014, 01:19:37 PM
The only other interesting looking tubed based sabre dac I have found is Fikus'  Amber Lampi DAC. Does PCM and DSD.

http://www.lampizator.eu/newdac/lampizator/Amber_Lampi_DAC.html (http://www.lampizator.eu/newdac/lampizator/Amber_Lampi_DAC.html)

Base price of 1400euro which works out to be bit over $2k AUS.
That is very tempting, but this is the one I would love to try,,,,,,,,

http://www.lampizator.eu/NEWDAC/Lampizator/DSD_DAC.html (http://www.lampizator.eu/NEWDAC/Lampizator/DSD_DAC.html)

2490EU,  before (our) modding.   

Quote
In April 2013 I made an enlightening exercise. Just out of curiosity I designed a DAC that converts DSD data stream (all types known) to analog and does it WITHOUT SILICON. I’ve tried various chips - all kinds - some “DSD READY” some DSD through PCM and some real DSD.

As a chief designer I felt that Lampizator fame needs a DAC like no  other. I created a converter that treats the DSD in pure analog domain and produces music in it’s virgin glory. Without any manipulation, digital processing, PCM conversion, delta sigma, or anything like that. I kept DSD in its purest native form and keep the sound with phase coherence, zero colorations or compression.

The sound is the purest copy of the original DSD recording I can think of.

It is a pity this type of product could not be released for sale.

The process is 100% free of active solid state components. Only tube active filters are employed. At the end the signal is amplified by triodes again - in the way we always have done at LampizatOr.

I don’t follow the world developments in this field and I don’t have time to read internet forums but I guess this must be one of the first such pure tube DSD DACs worldwide.

In my design I used the FM radio principle for tuning into the data stream and extracting music modulation from the carrier waveform. The technology therefore is based on the grandmother’s radio with the magic green eye.

Lukasz Fikus , Chief Designer and Owner
Title: Re: The Line Magnetic LM-502CA Dac
Post by: ozmillsy on October 07, 2014, 01:33:23 PM
[snip]
I can honestly say that the LM502 synergised beautifully with my system and while being fed by my modified CEC transport, it equaled or exceeded the sound my KDac in virtually every discernible listening parameter you can name. I fully understand what a politically incorrect statement this is on a site dedicated to the KDac, and I will be burned at the stake for declaring it, but sometimes you need to put aside your prejudices and just listen "without blinkers".
[snip]
So, will I put my money where my mouth is? You better believe it! I'll buy one in these units in the coming weeks and perform the same mod's Bryan has, then see if there are other areas of performance gain.
[snip]
Mark,  thanks for your post,  really insightful.   When you get your own unit, mod and dial it in for your system,  I'd love to hear it sometime.   I like to try and get down to Melb every couple of years or so,  catch up with friends, and I am well overdue for a road trip down the Hume.   
Title: Re: The Line Magnetic LM-502CA Dac
Post by: Tuyen on October 07, 2014, 01:34:31 PM
Hi Terry,

As I don't understand how  PCM/DSD input via I2S works  in terms of switching between them and filtering requirements  for the es9018 dac chip,   since the USB-I2S module on this LM DAC does not support 384 or DSD,  while that JLSound I2SoverUSB board we mentioned in the past does,  would it be easy enough to replace the module in the LM DAC with the JLSound unit? Will the ES9016 chip auto pickup DSD signal and process it fine? Or does it require some software changes for it to switch over?    I'm assuming it will play perfectly fine for bit/sample rates that the stock module does supports.  Meaning powering the module with separate dedicated 5V DC into the module, will also bring potential benefits?

From image below, I can see the i2s lines, but I can't see any dedicated 5v input, so I assume the board just uses 5v from the 'noisy' USB line..  eek!
(http://usr.audioasylum.com/images/0/6097/LM502CADACC_zps29cc9cdf.jpg)
Title: Re: The Line Magnetic LM-502CA Dac
Post by: Mark OTL on October 07, 2014, 02:36:36 PM
Mark,  thanks for your post,  really insightful.   When you get your own unit, mod and dial it in for your system,  I'd love to hear it sometime.   I like to try and get down to Melb every couple of years or so,  catch up with friends, and I am well overdue for a road trip down the Hume.
You're welcome anytime you're in the neighborhood, as is anybody on this forum who wants to hear this remarkable Dac. My Dac is on it's way, and I'll post here when it's modded and running sweetly. I now live in Batesford these days, just out of Geelong if any are within a drive a way.

Cheers, Mark.
Title: Re: The Line Magnetic LM-502CA Dac
Post by: Tuyen on October 07, 2014, 02:43:11 PM
Will certainly take you up on your offer next time I'm in Melb Mark.  Will also give me a chance to listen to your awesome OTL Beast amps  :)

Love the sound from me T16 monos.   Actually v keen to go for a Mini Beast when funds permit!
Title: Re: The Line Magnetic LM-502CA Dac
Post by: zenelectro on October 07, 2014, 04:22:28 PM
Hi Terry,

As I don't understand how  PCM/DSD input via I2S works  in terms of switching between them and filtering requirements  for the es9018 dac chip,   since the USB-I2S module on this LM DAC does not support 384 or DSD,  while that JLSound I2SoverUSB board we mentioned in the past does,  would it be easy enough to replace the module in the LM DAC with the JLSound unit? Will the ES9016 chip auto pickup DSD signal and process it fine? Or does it require some software changes for it to switch over?    I'm assuming it will play perfectly fine for bit/sample rates that the stock module does supports.  Meaning powering the module with separate dedicated 5V DC into the module, will also bring potential benefits?

From image below, I can see the i2s lines, but I can't see any dedicated 5v input, so I assume the board just uses 5v from the 'noisy' USB line..  eek!
(http://usr.audioasylum.com/images/0/6097/LM502CADACC_zps29cc9cdf.jpg)

Hi Tuyen,

DSD over USB is called DoP    http://dsd-guide.com/dop-open-standard

I believe the Line Magnetic would probably require some kind of firmware upgrade to do DSD
but I'm not sure about this. IOW it is not necessarily just a hardware upgrade issue.  You are best
enquiring with the manufacturer.

WRT DSD over USB, it's worth noting that with custom ASIO divers for Windows it is possible to transfer DSD512 which is quad speed or ~22MHz.

There are software players which can upconvert any DSD or PCM file to any DSD format up to DSD512.

So then the question becomes - why do I need a PCM DAC anyway?

Terry
Title: Re: The Line Magnetic LM-502CA Dac
Post by: stevenvalve on October 07, 2014, 05:09:32 PM
You're welcome anytime you're in the neighborhood, as is anybody on this forum who wants to hear this remarkable Dac. My Dac is on it's way, and I'll post here when it's modded and running sweetly. I now live in Batesford these days, just out of Geelong if any are within a drive a way.

Cheers, Mark.
Mark, where did you buy your new DAC and how much.
Title: Re: The Line Magnetic LM-502CA Dac
Post by: Tuyen on October 07, 2014, 06:14:07 PM
There are software players which can upconvert any DSD or PCM file to any DSD format up to DSD512.

So then the question becomes - why do I need a PCM DAC anyway?

Thanks for the info Terry.

I use JRiver MC which can do all that real time upsampling/downsampling as you mention.  Would that be optimal for SQ though?  Always had the understanding that it was best to replay at the file's native rate when possible?   This does mirror my experience when attempting to realtime upsample 14/66  content  to 24/192 which is the max my DAC can do.  Also holds true when I set the software to downsample (realtime)  24/192 files to 16/44.      I do have a small collection of 32/384 master files and some DXD/DFF files that I have the software to realtime downsample to 24/192.  Still sounds great (mainly due to low compression to allow for all the dynamics to come through).

Is it all a different ball game when we start talking in the DSDxxx range?
Title: Re: The Line Magnetic LM-502CA Dac
Post by: zenelectro on October 07, 2014, 07:18:41 PM
Thanks for the info Terry.

I use JRiver MC which can do all that real time upsampling/downsampling as you mention.  Would that be optimal for SQ though?  Always had the understanding that it was best to replay at the file's native rate when possible?   This does mirror my experience when attempting to realtime upsample 14/66  content  to 24/192 which is the max my DAC can do.  Also holds true when I set the software to downsample (realtime)  24/192 files to 16/44.      I do have a small collection of 32/384 master files and some DXD/DFF files that I have the software to realtime downsample to 24/192.  Still sounds great (mainly due to low compression to allow for all the dynamics to come through).

Is it all a different ball game when we start talking in the DSDxxx range?

WRT upsampling in software or format conversion it depends on the software.

You have to remember that a PC has infinitely more powerful processing capability than any DAC or chip based digital filter / upsampler.
So if the PC upsampling or format conversion sounds worse it is most likely either a) noise from increased processor activity or b) badly written software.
For a) you need to use a galvanically isolated and re clocked USB -> I2S converter to isolate the PC noise.... as I have said so many times before.
For b) it's a matter of finding the best software.

There's no magic in all of this, it's pretty much all physics. 

I have seen people throwing big dollars at super quiet PC power supplies etc etc but don't use a galvanically isolated and reclocked USB
converter = poor spending of money.

The moral of the story is address the important things first.
 
Terry


Title: Re: The Line Magnetic LM-502CA Dac
Post by: ozmillsy on October 07, 2014, 07:38:13 PM
DSD512 is a helluva lot of data.
Title: Re: The Line Magnetic LM-502CA Dac
Post by: Tuyen on October 07, 2014, 07:40:09 PM
Cool thanks again for the info.  The WaveIO (http://luckit.biz/ (http://luckit.biz/)) I use is galvanically isolated, but I'm not sure if it is reclocks afterwards.

(http://luckit.biz/wp-content/uploads/2011/06/waveIO2.png)

I'm tempted to try one of those JLSound I2SoverUSB (http://jlsounds.com/i2soverusb.html (http://jlsounds.com/i2soverusb.html)) modules Danny is trying out at the moment.  They seem to tick all the boxes and is relatively cheap.  Will see if it brings any sonic improvements on my system.

(http://jlsounds.com/uploads/I2SoverUSB_1.jpg)

Any recommendations for windows based playback software that delivers to goods, please do share!  :-*

PS. I've emailed Line Magnetic and asked the question regarding compatibility with replacing the usb module to allow for 384 and DSD support.  Will post reply on this thread.
Title: Re: The Line Magnetic LM-502CA Dac
Post by: ozmillsy on October 07, 2014, 08:02:57 PM
Terry has been prompting me to have a play with this one for awhile, but I havent had a chance,,,,,,,

http://www.signalyst.com/consumer.html (http://www.signalyst.com/consumer.html)
Title: Re: The Line Magnetic LM-502CA Dac
Post by: zenelectro on October 08, 2014, 05:26:32 PM
Cool thanks again for the info.  The WaveIO (http://luckit.biz/ (http://luckit.biz/)) I use is galvanically isolated, but I'm not sure if it is reclocks afterwards.

(http://luckit.biz/wp-content/uploads/2011/06/waveIO2.png)


By the look of it that is not the case. The isolated OP is coming straight from isolators sans reclocking - as far as I can see.

T
Title: Re: The Line Magnetic LM-502CA Dac
Post by: Tuyen on October 08, 2014, 11:12:59 PM
Got a reply from James from Line Magnetic about my query regarding if I could replace the xmos based usb interface in the LM502CA with another unit like the JLSound I2SoverUSB.

His reply follows:

Hello Tuyen,

Thanks very much for your inquiry. However sorry to inform you that the USB module cannot be replaced by your JLSound module.

Please check.

Thanks and with best regards,

James


His reply was sort of what I was expecting coming from the manufacturer.  Was just wishful thinking...     

Reality is, I'm quite confident it wouldn't be that difficult to replace the stock usb module with another one like the WaveIO or the JLSound I2SoverUSB. From the close up photos, I can only just see the 4 I2S wires coming out from the stock module going into the DAC mainboard.  Assuming it is USB powered as I don't see a dedicated 5v line coming from the power supply section going into to the module..         therefore even if the dac does not support higher sampling rate than 192khz or direct DSD, even replacing the stock USB module with a different one that allows for dedicated external 5V input instead of using USB power, would bring noticeable improvement in sonics.     Just my personal tip for current/future owners of one of these LM LM-502CA DACs and plan on using it's USB input!   :-*

PS. I could be wrong too. I hold no responsibility if you attempt the following and cause damage to your DACs!  :P
Title: Re: The Line Magnetic LM-502CA Dac
Post by: Mark OTL on October 10, 2014, 02:28:43 PM
Mark, where did you buy your new DAC and how much.
Hi Steve, Graham bought both of ours via AliExpress for just under $1k each. Bargain! I believe these will be 240V versions.

Cheers, Mark.
Title: Re: The Line Magnetic LM-502CA Dac
Post by: omodo on October 11, 2014, 11:05:53 AM
Is this the one you guys bought?

http://www.aliexpress.com/store/product/Line-Magnetic-Li-magnetic-LM-502CA-digital-audio-decoder/1026221_1639921542.html

I see the same seller has another one listed for nearly $200 less delivered, did you ask what the difference is?

http://www.aliexpress.com/store/product/Five-Diamond-entity-Korea-magnetic-tube-hi-LM-502CA-digital-audio-decoder-Gold-Silver/1026221_1639867990.html
Title: Re: The Line Magnetic LM-502CA Dac
Post by: Mark OTL on October 11, 2014, 08:55:33 PM
Is this the one you guys bought?

http://www.aliexpress.com/store/product/Line-Magnetic-Li-magnetic-LM-502CA-digital-audio-decoder/1026221_1639921542.html

I see the same seller has another one listed for nearly $200 less delivered, did you ask what the difference is?

http://www.aliexpress.com/store/product/Five-Diamond-entity-Korea-magnetic-tube-hi-LM-502CA-digital-audio-decoder-Gold-Silver/1026221_1639867990.html

Hi Omodo, Not sure why there would be a pricing difference. I simply asked Graham to tack my order onto his existing order,...he's usually a pretty "savvy" buyer. I only stipulated that it should be the 240V/50Hz version.
Title: Re: The Line Magnetic LM-502CA Dac
Post by: kajak12 on October 28, 2014, 08:04:06 PM
http://www.witchdoctor.co.nz/index.php/2013/06/line-magnetic-lm-502ca-vacuum-tube-dac-review/
Title: Re: The Line Magnetic LM-502CA Dac
Post by: kajak12 on October 28, 2014, 09:44:19 PM
Hi Steve, Graham bought both of ours via AliExpress for just under $1k each. Bargain! I believe these will be 240V versions.

Cheers, Mark.
I hope this makes the kdac resale low i will buy one again :-*
Title: Re: The Line Magnetic LM-502CA Dac
Post by: Rob181 on October 29, 2014, 07:48:43 AM
I hope this makes the kdac resale low i will buy one again :-*
And when is that likely to be...
Title: Re: The Line Magnetic LM-502CA Dac
Post by: kajak12 on October 29, 2014, 05:12:05 PM
when line magnetic over takes the top spot
Title: Re: The Line Magnetic LM-502CA Dac
Post by: kajak12 on October 29, 2014, 05:12:54 PM
And when is that likely to be...

http://www.stereo.net.au/forums/index.php?/topic/73292-kajak12marios-killerdac-zen-clock-marantz-cd94-transport/

buy it now
Title: Re: The Line Magnetic LM-502CA Dac
Post by: ozmillsy on October 29, 2014, 09:28:43 PM
Rationalising?  ???

Title: Re: The Line Magnetic LM-502CA Dac
Post by: kajak12 on October 30, 2014, 04:42:30 PM
Rationalising?  ???
More holidays early retirement
Title: Re: The Line Magnetic LM-502CA Dac
Post by: stevenvalve on November 01, 2014, 07:45:46 PM
Well,  The word is in on the The Line Magnetic LM-502CA Dac.  Is the fully modified Line Magnetic version the holly grail. More to come.
Title: Re: The Line Magnetic LM-502CA Dac
Post by: ozmillsy on November 01, 2014, 07:49:48 PM
Tease !   :P
Title: Re: The Line Magnetic LM-502CA Dac
Post by: kajak12 on November 02, 2014, 11:22:37 AM
Well,  The word is in on the The Line Magnetic LM-502CA Dac.  Is the fully modified Line Magnetic version the holly grail. More to come.
The word is on the street that stevenvalve has ordered one and bryan is going to modd it for him....................
Title: Re: The Line Magnetic LM-502CA Dac
Post by: hedalfa on November 02, 2014, 11:27:32 AM
The word is on the street that stevenvalve has ordered one and bryan is going to modd it for him....................

Kayak
Is that the street that's is a hot as hell  ??? ??? ??? ??? and the guy with a pitch fork keeps having a go at you
Title: Re: The Line Magnetic LM-502CA Dac
Post by: ozmillsy on November 02, 2014, 09:06:31 PM
The word is on the street that stevenvalve has ordered one and bryan is going to modd it for him....................
Excellent, I'll get to hear it.   :D

Steven will change it further to dial it in for his system.

The reports I have read thus far have been using cd transports.    Whose using a computer source,,, anyone?
Title: Re: The Line Magnetic LM-502CA Dac
Post by: stevenvalve on November 03, 2014, 03:36:18 PM
Well the verdict is in on Bryans much modified Line Magnetic LM-502CA Dac. All had a similar tale to tell, First the standard Line Magnetic LM-502CA Dac. On sound quality is the standard Line Magnetic dac worth buying,  universally the verdict is the standard machines are only good to OK sounding, some hardheads thought they just aren't good enough, but considering the $1000 price tag they are very tempting, As to the question, on a well tuned wonderful sounding system is Bryans much modified Line Magnetic LM-502CA Dac a killerdac killer, They clearly say NO. I think on any given system in various states of tune any DAC can appear to be the best, but eventually over time the answer is there. 
Title: Re: The Line Magnetic LM-502CA Dac
Post by: ozmillsy on November 03, 2014, 06:27:19 PM
Interesting.    I'm assuming these comparisons are using 16bit sources?   (CD transport)
Title: Re: The Line Magnetic LM-502CA Dac
Post by: gamve on November 03, 2014, 07:31:21 PM
In fairness to both the LM and the KillerDac please be aware that I did not hear a direct comparison between these units at anytime on my recent trip to Melbourne. How you can assume one is better than the other listening on unfamiliar systems at different times, is drawing a fairly long bow.
To my knowledge only Craig heard both units on the one system. Craig also only heard the killerdac with tubes fitted that were inferior to requirements for good sound from this machine. To say the verdict is decided to my mind is a little premature especially having not even heard the evidence :)
 I have heard 2 x standard unadulterated LM units with only rectifier and output tube changes and in my opinion they both sound very good especially when you factor in that they both have less than 10 hours play time, they are readily available and cost less than a decent set of tubes and chokes for a KD. I don't give a fat rats about which is best except to say one is a commonly available and affordable item that sounds OK right out of the box, the other is a fantastic sounding unit with a matching price tag and to be fair a long delivery as the builder has a more than full time job in the real world. A real comparison would be the absolute bottom model Killerdac against a near standard LM DAC. This in my opinion would give a truly meaningful comparison rather than the useless exercise of comparing a VW Polo to a 7 Series BMW.
Disclaimer
If I have offended anyone with my comments above. tough titties....get a life.
Title: Re: The Line Magnetic LM-502CA Dac
Post by: gamve on November 03, 2014, 07:34:59 PM
Interesting.    I'm assuming these comparisons are using 16bit sources?   (CD transport)

What comparisons? (read above)
Yes 16 BIT sources
Title: Re: The Line Magnetic LM-502CA Dac
Post by: stevenvalve on November 03, 2014, 07:36:45 PM
Interesting.    I'm assuming these comparisons are using 16bit sources?   (CD transport)
I don't think that was in the equation, I don't think comparisons where involved, its more does the Line Magnetic cut it. Does it really make music, to some it may, but word is the modified Line Magnetic was disappointing. Particularly to the analogue users. If it is sent to me, i can give you a full on nitty gritty evaluation of its performance. Hopefully mark may be persuaded to eventually send his, but Bryan most certainly will not, after all he has had a lot to say and has everything to lose, including this credibility.   
Title: Re: The Line Magnetic LM-502CA Dac
Post by: brenden on November 03, 2014, 08:13:47 PM
I think what Gamve said has a lot of merit .We  need to compare apples with apples . A base standard KD vs an  unmodified LM ,or  both fully modded .

    The KD has had many years of development ,and the LM is fresh ,so maybe somewhere down the track the comparison will be more valid .
   What I would like to know, is how good will the LM be when it is optimised .Is it a good base for development .

  I like the idea of  a dac that can even come close to the KD ,but accessible  to  the masses ,and affordable .We also need to be aware that to some of us ,small differences can seem huge because we have attuned ourselves to optimising even  the smallest of details .To others the  overall sound quality  may appear to be closer .I suspect that these  questions will require some time to evaluate .
Title: Re: The Line Magnetic LM-502CA Dac
Post by: vitavoxdude on November 03, 2014, 08:18:07 PM
Oh that's a bit harsh Mr. G, ::) ::) losing credibility, :o come on, he is a talented system tuner / constructor and I for one believe him if he says he has got his sounding really good.  Without getting into a pissing contest, if the LM unit works really well post mods in his system then that's great, a direct comparison of a full house KD unless tuned for his system is likely to sound different but to an individuals ears, possibly not a whole hill of beans better.  It all comes down to personal choice and unless a blind listening test is done by a group of 4 or more dedicated types with the two units of interest its all largely conjecture IMV.

Somehow my guess would be that at 1K AUD direct (2.4k retail)unit is most unlikely to best a 5k+ product / labour of much gestation and care, just look at the ingredients......it made me wince a bit.  :-X

V
Title: Re: The Line Magnetic LM-502CA Dac
Post by: stevenvalve on November 03, 2014, 09:23:52 PM
Oh that's a bit harsh Mr. G, ::) ::) losing credibility, :o come on, he is a talented system tuner / constructor and I for one believe him if he says he has got his sounding really good.  Without getting into a pissing contest, if the LM unit works really well post mods in his system then that's great, a direct comparison of a full house KD unless tuned for his system is likely to sound different but to an individuals ears, possibly not a whole hill of beans better.  It all comes down to personal choice and unless a blind listening test is done by a group of 4 or more dedicated types with the two units of interest its all largely conjecture IMV.

Somehow my guess would be that at 1K AUD direct (2.4k retail)unit is most unlikely to best a 5k+ product / labour of much gestation and care, just look at the ingredients......it made me wince a bit.  :-X

V
V you forget Bryan made the claim... The Line Magnetic LM-502CA Dac kills the Killerdac...Then Bryan said... its a game changer, not it is a little better, or it maybe a system dependant thing, It's a full on statement. I guess the question is, if someone on a forum makes such a claim about a product and then people run out and buy it only to find out ultimately it's no game changer.. does that person lose some credibility. We are here to pass our knowledge on to other readers. We must have Credibility.
Title: Re: The Line Magnetic LM-502CA Dac
Post by: stevenvalve on November 03, 2014, 09:32:10 PM
I think what Gamve said has a lot of merit .We  need to compare apples with apples . A base standard KD vs an  unmodified LM ,or  both fully modded .

    The KD has had many years of development ,and the LM is fresh ,so maybe somewhere down the track the comparison will be more valid .
   What I would like to know, is how good will the LM be when it is optimised .Is it a good base for development .

  I like the idea of  a dac that can even come close to the KD ,but accessible  to  the masses ,and affordable .We also need to be aware that to some of us ,small differences can seem huge because we have attuned ourselves to optimising even  the smallest of details .To others the  overall sound quality  may appear to be closer .I suspect that these  questions will require some time to evaluate .
I think its a great dac to work on, and the one I would pick to play with, especially considering the price. Love the fact it has the important things, like Valve rectification and valve output,
Title: Re: The Line Magnetic LM-502CA Dac
Post by: kajak12 on November 03, 2014, 11:04:05 PM
Bryan where are you? i need input before i spend $$$ and run line magnetic against my exkiller
Title: Re: The Line Magnetic LM-502CA Dac
Post by: ozmillsy on November 04, 2014, 07:15:37 AM
What comparisons? (read above)
This one...........
As to the question, on a well tuned wonderful sounding system is Bryans much modified Line Magnetic LM-502CA Dac a killerdac killer, They clearly say NO.

Acknowledge the point that a side by side comparison was not done.  But clearly comparisons are being made, which is not a problem in my book.  We need to have some frame of reference to talk about.

Quote
Yes 16 BIT sources
Thanks for clarifying.    In my case 16bit is not the end game, I only use the format due to my hardware choices.   I have a huge library of hi-res music, that would be nice to play in its native format.

The dac supports 24bit, if/when there is a unit to hear up my way, then i am very interested to hear it playing 24bit.

Then we can say, well the mastering is different between 24bit files and CD's,  but thats ok thanks to some really good downsampling software at our disposal we can,,,,,,,

1)  Listen to 24bit reference track on optimised LM
2)  Downsample and listen to same track on LM in 16bit
3)  Listen to same 16bit downsampled track on KD

That, for me, is the thing I'd like to assess.  Handling of 24bit music from a computer source.



Title: Re: The Line Magnetic LM-502CA Dac
Post by: gamve on November 04, 2014, 03:59:04 PM
"They clearly say NO"

Scratches head (who the fcuk are THEY)?

Why is it the ones who have the most to say are the ones who have not even heard the bloody thing.  ???
Title: Re: The Line Magnetic LM-502CA Dac
Post by: Tuyen on November 04, 2014, 04:13:51 PM
A question for the technical,   is there anything that challenging about just fitting a 'simple' but tube rectified output stage onto the outputs of a high quality sabre DAC based module (eg. Twisted Pear Buffalo IIISE or AckoDAC AKD12P) ?    Then stick a USB-I2S module from JLSound into the I2S input of the DAC module  and  bobs your uncle, you have a  high quality sabre based DAC   with a USB module that ticks all the important boxes?    Also being DIY'ers, can choose what parts (transformers, chokes, wiring, resistors, capacitors, tube sockets, rca sockets, etc.)  you like ?

Basically like what this guy did?
(http://i50.tinypic.com/dmd854.jpg)


What benefits or important factors would the Line Magnetic unit possibly have that the DIY'er above has not considered?


Also found another commercial offering (albeit crazy priced)  of a Sabre based DAC with tube rectification and output  which looks quite 'simple' (usb to i2s module -> into sabre dac module -> jensen balanced to unbalanced signal transformers -> tube output stage?)    The Wavelength Audio Crimson HS USB DAC. 

http://www.audiostream.com/content/wavelength-audio-crimson-hs-usb-dac (http://www.audiostream.com/content/wavelength-audio-crimson-hs-usb-dac)

(http://www.audiostream.com/images/72912crimson3.jpg)
Title: Re: The Line Magnetic LM-502CA Dac
Post by: ozmillsy on November 04, 2014, 05:07:37 PM
"They clearly say NO"

Scratches head (who the fcuk are THEY)?
I dunno, i'm just quoting what is being posted.  Steven, can you share with us who the fcuk they are?
 ??? 

Quote
Why is it the ones who have the most to say are the ones who have not even heard the bloody thing.  ???
Who are you referring to?      I dont have anything to say, beyond what I would like to hear, when steven gets his hands on 1 (ie: computer source or streamer, passing in 24bit).
Title: Re: The Line Magnetic LM-502CA Dac
Post by: stevenvalve on November 04, 2014, 05:31:51 PM
"They clearly say NO"

Scratches head (who the fcuk are THEY)?

Why is it the ones who have the most to say are the ones who have not even heard the bloody thing.  ???
If they want to speak up, it's up to them, It's not my call. Not all post here.
Title: Re: The Line Magnetic LM-502CA Dac
Post by: stevenvalve on November 04, 2014, 05:47:27 PM
 Zenelectro, summed  it up nicely, He can make a beautiful sounding Sabre base DAC, without all the Line Magnetics compromises. But at what price
Title: Re: The Line Magnetic LM-502CA Dac
Post by: stevenvalve on November 04, 2014, 05:49:45 PM
A question for the technical,   is there anything that challenging about just fitting a 'simple' but tube rectified output stage onto the outputs of a high quality sabre DAC based module (eg. Twisted Pear Buffalo IIISE or AckoDAC AKD12P) ?    Then stick a USB-I2S module from JLSound into the I2S input of the DAC module  and  bobs your uncle, you have a  high quality sabre based DAC   with a USB module that ticks all the important boxes?    Also being DIY'ers, can choose what parts (transformers, chokes, wiring, resistors, capacitors, tube sockets, rca sockets, etc.)  you like ?

Basically like what this guy did?
(http://i50.tinypic.com/dmd854.jpg)


What benefits or important factors would the Line Magnetic unit possibly have that the DIY'er above has not considered?


Also found another commercial offering (albeit crazy priced)  of a Sabre based DAC with tube rectification and output  which looks quite 'simple' (usb to i2s module -> into sabre dac module -> jensen balanced to unbalanced signal transformers -> tube output stage?)    The Wavelength Audio Crimson HS USB DAC. 

http://www.audiostream.com/content/wavelength-audio-crimson-hs-usb-dac (http://www.audiostream.com/content/wavelength-audio-crimson-hs-usb-dac)

(http://www.audiostream.com/images/72912crimson3.jpg)
Right on Tuyen, these look good, home work is important
Title: Re: The Line Magnetic LM-502CA Dac
Post by: ozmillsy on November 04, 2014, 06:15:09 PM
Right on Tuyen, these look good, home work is important
reviewed unit has silver based transformers.   Makes me wonder what system they are using as a reference to build it?
Title: Re: The Line Magnetic LM-502CA Dac
Post by: Tuyen on November 04, 2014, 06:35:38 PM
Would be a full on tubed based system would be my guess.  Gordon Rankin (Wavelength Audio) has always been a tube-a-holic.   Smart man.

http://www.audiostream.com/content/qa-wavelength-audios-gordon-rankin (http://www.audiostream.com/content/qa-wavelength-audios-gordon-rankin)
Title: Re: The Line Magnetic LM-502CA Dac
Post by: stevenvalve on November 04, 2014, 07:21:56 PM
I have been doing my homework, and I have a new dac coming soon. The professor is building it as I type, what do you think of it.
Title: Re: The Line Magnetic LM-502CA Dac
Post by: ozmillsy on November 04, 2014, 08:09:52 PM
Lmao !!   ;D
Title: Re: The Line Magnetic LM-502CA Dac
Post by: gamve on November 04, 2014, 11:31:49 PM
I have been doing my homework, and I have a new dac coming soon. The professor is building it as I type, what do you think of it.

Yes Steve. Its a bit like chasing rainbows. Why the fcuk do we bother? They had it right years ago with tape and vinyl, the smart choice is still with these old outdated formats except when you consult the dichkeads that just want your money. The long and short of it is if an approximation is OK with you, bend over and go digital.
Title: Re: The Line Magnetic LM-502CA Dac
Post by: vitavoxdude on November 04, 2014, 11:56:56 PM
;) Good ole Graham, say it as it is. 8)
Steveo, yes accepted, making grand statements is never wise but if he really believes it the muts nuts then good for him........Now if I can just purchase for a fifth of the price all my system (S) again and be in a different league I would, but puff the magic dragon says NO, damn and blast.
;D ;D ;D ;D ;D ;D ;D ;D ;D
V
Title: Re: The Line Magnetic LM-502CA Dac
Post by: Tuyen on November 05, 2014, 06:08:15 PM
Not specifically regarding the LM-502CA DAC, but regarding the ES9016/ES9018 DAC chips,  this DIY'er reports how he converts one to tube output stage and is in love.

http://www.diysoundlab.com/index.php/es9018-dac-or-nfb-11 (http://www.diysoundlab.com/index.php/es9018-dac-or-nfb-11)



Also another guy who stuck a tube output stage to his Buffalo II DAC (ES9018) and prefers it over the SS based IVY3 output stage.
http://www.head-fi.org/t/484857/buffalo-ii-dac-with-switchable-6h6p-valve-output-and-ivy-3 (http://www.head-fi.org/t/484857/buffalo-ii-dac-with-switchable-6h6p-valve-output-and-ivy-3)
Title: Re: The Line Magnetic LM-502CA Dac
Post by: vitavoxdude on November 05, 2014, 07:46:48 PM
 :) :) :) :) :) :) :) :) :) :) :) :) :) :) :) :) :) :) :) :) :) :)
 :) :) :) :) :) Great post, thank you Tuyen :) :) :) :) :) :)
 :) :) :) :) :) :) :) :) :) :) :) :) :) :) :) :) :) :) :) :) :) :)
Title: Re: The Line Magnetic LM-502CA Dac
Post by: Tuyen on November 05, 2014, 07:53:16 PM
Of course Fikus has to also share his experience after creating the 'BuffaloDAC'.

http://lampizator.eu/lampizator/REFERENCES/Buffalo%20DAC/BuffaloDAC.html (http://lampizator.eu/lampizator/REFERENCES/Buffalo%20DAC/BuffaloDAC.html)

TICKET TO NIRVANA:
The total cost is: Buffalo with PSU 230  USD, Transformer 20 USD, Lampizator circa 250 USD, housing 60 USD.  Jewellery, AC cable, RCA, etc. 20 USD
Total -580 USD and add tax for EU.  Not bad at all for the World King Of Dacs.



As DIY'ers and tinkerers, would assume we be more inclined to buy a 'es9018 dac board' and build our own output stage eh?   Would possibly be able to get one going for around $1k if we wanted. Which is around price of the LM-502CA. 

I'd like to attempt to build one sometime next year for fun.   
Title: Re: The Line Magnetic LM-502CA Dac
Post by: Tuyen on November 05, 2014, 08:02:45 PM
Another report where guy much prefers a 'tubed' buffalo over the standard ss based output stage.

http://www.headfonia.com/the-flagship-audio-gd-pcm1704-based-ref-7-1/ (http://www.headfonia.com/the-flagship-audio-gd-pcm1704-based-ref-7-1/)
(scroll down to the bottom section named: VERSUS THE TUBE BUFFALO 32 DAC)

All these positive reports actually brings some hope for the sabre chips in my view as well.   As I have to admit, I wasn't overly impressed with the sabre based DACs I've heard in the past (AudioGD and Twisted Pear Buffalo 3SE).
Title: Re: The Line Magnetic LM-502CA Dac
Post by: zenelectro on November 07, 2014, 01:23:27 AM
Zenelectro, summed  it up nicely, He can make a beautiful sounding Sabre base DAC, without all the Line Magnetics compromises. But at what price

Basically all the bits you need to make a really SOTA Sabre DAC board / spdif / USB input are available here and there on the net.

The real trick is knowing which ones to get and how to configure them. Yes I have an early Buffalo, it's junk.

Then a decent valve stage needs to be added and interface to the Sabre. Note the Sabre is balanced.
Valve power supply and a nice big enclosure to fit decent rectifier / valve / chokes etc. so it looks the part.

The whole thing can be done for around $3k finished, probably a bit extra for stupid expensive parts like Duelund.

This is a DAC that will do everything up to 192k PCM (maybe 384) / DSD from USB and PCM 192k from SPDIF

IMHO I believe a DSD only DAC with a software player to convert everything to DSD will sound better but there's no doubt
a very well configured Sabre will be very very good.

You asked!  :) :) :) :) :)

T
Title: Re: The Line Magnetic LM-502CA Dac
Post by: James on November 09, 2014, 03:43:18 PM
I'm very happy with my ackodac/ ntd1 output stage
Title: Re: The Line Magnetic LM-502CA Dac
Post by: klackto on December 24, 2014, 10:00:27 AM
It seems a few have bought one these dacs by so far no feedback.
Any reports?   Steve did you get to try one I your system?
Title: Re: The Line Magnetic LM-502CA Dac
Post by: gamve on January 05, 2015, 03:50:21 PM
It seems a few have bought one these dacs by so far no feedback.
Any reports?   Steve did you get to try one I your system?

I Like mine. Put a decent 6X4 rectifier and some decent 12AU7's and that is the extent
of modifications at least till the thing is fully run in. Is is a killerdac killer? Not with the
minor modifications I have made. I'm not going to modify this unit to anywhere near what
some others have attempted as I am happy enough with the standard performance for
where I will be using it.  Is it the best $1000 DAC available? Yes without a doubt.
I brought mine for a second system and the bang for buck is undeniable. It does exactly
what I expected and I am pleased with my purchase. Would I recommend it to others?
Big fat YES.
Title: Re: The Line Magnetic LM-502CA Dac
Post by: vitavoxdude on January 05, 2015, 04:22:16 PM
:)And there you have it.  Great post from some one who is not trying to sell it!
Title: Re: The Line Magnetic LM-502CA Dac
Post by: PingPing on January 05, 2015, 07:40:56 PM
I Like mine.   Put a decent 6X4 rectifier and some decent 12AU7's and that is the extent of modifications at least till the thing is fully run in. Is is a killerdac killer?   Not with the minor modifications I have made.    I'm not going to modify this unit to anywhere near what some others have attempted as I am happy enough with the standard performance for where I will be using it.   Is it the best $1000 DAC available? Yes without a doubt.   I brought mine for a second system and the bang for buck is undeniable.   It does exactly what I expected and I am pleased with my purchase.   Would I recommend it to others? Big fat YES.
gamve, in what ways do you believe that the KDAC is better than the Line Magnetic DAC  :)
Title: Re: The Line Magnetic LM-502CA Dac
Post by: gamve on January 05, 2015, 11:46:47 PM
gamve, in what ways do you believe that the KDAC is better than the Line Magnetic DAC  :)

Tonality, presence and just a feeling of this sound is real. Please note that my LM DAC is stock
standard apart from tube rolling.  The KD is a reference benchmark for digital for my ears.
The LM is exceptionally good for what it is and at the price point it is available for. The best part
is that with some music you can forget comparisons and also forget which unit you are listening too
and just thoroughly enjoy the music. I am also slowly falling for the sound of the Korg DSD DAC
playing good DSD files, but that is another story for another day.
Title: Re: The Line Magnetic LM-502CA Dac
Post by: stevenvalve on January 06, 2015, 01:07:46 AM
gamve, in what ways do you believe that the KDAC is better than the Line Magnetic DAC  :)
Ping its hard to go past a Line Magnetic DAC that costs $1000, and has the basics of what's needed the make good music. I will get one of these Line Magnetic DAC's or the newer model for fun eventually. Or one day soon someone will bring a modified one up here. The Kdac really is for someone who is super serious about music reproduction and really know's how to tune it to his system, and his system as a whole, It's capable of magnificent sound but I stress, in the right hands.
Title: Re: The Line Magnetic LM-502CA Dac
Post by: flemo on February 18, 2015, 11:18:37 PM
Ping its hard to go past a Line Magnetic DAC that costs $1000,

I must confess that this dac does interest me, of course it would only be for background music when not using the TT.   :D

I think with the AUD copping a hammering they're now around the $1400 mark plus shipping?

There is (or was) one for sale on SNA for $1200, which seems a bit pricey given the cost of a new one? 

Are there any known to be in Perth for a demo maybe?

Cheers

Pete
Title: Re: The Line Magnetic LM-502CA Dac
Post by: vitavoxdude on February 19, 2015, 01:40:57 AM
:) Pete, maybe ask Tuyen, he has lots of contacts.
V
Title: Re: The Line Magnetic LM-502CA Dac
Post by: Tuyen on February 19, 2015, 09:49:06 AM
Sorry lads, I don't know anyone local who owns one of these units.

I think the Helmut was asking that much cos he had put better quality tubes in it, along with better output caps (Mundorfs).
Title: Re: The Line Magnetic LM-502CA Dac
Post by: flemo on February 19, 2015, 12:15:27 PM
Sorry lads, I don't know anyone local who owns one of these units.

I think the Helmut was asking that much cos he had put better quality tubes in it, along with better output caps (Mundorfs).

I sent him a pm seeking more info but haven't heard anything yet.   
Title: Re: The Line Magnetic LM-502CA Dac
Post by: Tuyen on February 27, 2015, 02:22:01 AM
Demo may infact be possible in the near future Pete. Found out my local friend ended up buying Helmut's unit.  Should arrive in the mail any day now :)

Will let you know. Keen to hear it myself!
Title: Re: The Line Magnetic LM-502CA Dac
Post by: ozmillsy on February 27, 2015, 07:14:10 AM
Is there anyone in Sydney or Brisbane with 1 of these?
Title: Re: The Line Magnetic LM-502CA Dac
Post by: kajak12 on February 27, 2015, 07:05:12 PM
I must confess that this dac does interest me, of course it would only be for background music when not using the TT.   :D

I think with the AUD copping a hammering they're now around the $1400 mark plus shipping?

There is (or was) one for sale on SNA for $1200, which seems a bit pricey given the cost of a new one? 

Are there any known to be in Perth for a demo maybe?

Cheers

Pete
If your using solid state amps any dac will do stop flogging a dead horse to win the Melbourne cup :P
Title: Re: The Line Magnetic LM-502CA Dac
Post by: klackto on June 20, 2015, 09:18:39 AM
Is there anyone in Sydney or Brisbane with 1 of these?

Well I guess the hype got to me and I bought one of these a few months ago.
Haven't done any mods other than changing the tubes ... Marconi 6x4 & Mullard 12au7.
Previously I was using a Metrum Octave that was pretty good but I've fancied a tube dac for a while and the multitude of inputs on th LM dac appealed.
How does it sound? So far very good .... on most material better than the Metrum in my system and for the money, you can't go wrong.
I'm not completely convinced by it's handling of sibilants but I plan on doing some mods, mostly using parts I have at hand such as new choke, output caps, wiring etc.
Title: Re: The Line Magnetic LM-502CA Dac
Post by: stevenvalve on June 20, 2015, 04:28:17 PM
Well I guess the hype got to me and I bought one of these a few months ago.
Haven't done any mods other than changing the tubes ... Marconi 6x4 & Mullard 12au7.
Previously I was using a Metrum Octave that was pretty good but I've fancied a tube dac for a while and the multitude of inputs on th LM dac appealed.
How does it sound? So far very good .... on most material better than the Metrum in my system and for the money, you can't go wrong.
I'm not completely convinced by it's handling of sibilants but I plan on doing some mods, mostly using parts I have at hand such as new choke, output caps, wiring etc.
sibilants is often caused by poor solder joints, wire that has been flexed a lot, faulty component, etc. Pain I the ass to find. I usually resolder all the parts or at least the ones I have done recently. Sibilants can be nullified after prolonged use. If its bad usually there is a problem and a long run in will not fix it.
Title: Re: The Line Magnetic LM-502CA Dac
Post by: yarhevarhe on August 04, 2017, 10:14:02 PM
Does this DAC sound as good as the KillerDac?
Title: Re: The Line Magnetic LM-502CA Dac
Post by: stevenvalve on August 05, 2017, 12:04:37 AM
A few have brought these after reading bryans comments, and then did the comparison, But ultimately there wasn't one. it is a good sounding DAC, but not magical. Shame because its Cheap. But hotted up it may cut it.