The KillerDAC Audio forum
Tech Corner => Suppliers => Topic started by: kajak12 on November 18, 2010, 09:53:29 PM
-
http://www.arcol.co.uk/product-range/product-series.php?cid=15
anyone tried them ?
-
No not tried them but they certainly look interesting particularly the bit about a high pulse rating as music is composed of lots of pulses in varying intensities and frequencies. Do you know minimum order numbers and available values (wattage and resistance)? ;D
-
No not tried them but they certainly look interesting particularly the bit about a high pulse rating as music is composed of lots of pulses in varying intensities and frequencies. Do you know minimum order numbers and available values (wattage and resistance)? ;D
ni idea but a email can find this info out and we can order a batch to try if anybody is intrested
-
Hey Kajak,
Have sent an email requesting info on which to use for the audio and powersupply.
Cheers,
Drew.
-
Hey Kajak,
Have sent an email requesting info on which to use for the audio and powersupply.
Cheers,
Drew.
hello drew how is your terra dak going?
drew from what i have learned its a combination of parts that creates synergy and depending on your system and preference is what you use.
audio note tantulum,takman,shinkoh,vishays allen bradely choose your poison
-
Heya Mario,
Currently nowhere, no time with work, moving etc. Me not having an actual system at this stage doesn't help, lots of plans, not enough time. Have some Obligatto caps to try, both coupling and psu filtering, have built a little pre from a kit, will be waiting till the lad is in his new home before I get to really have a listen, but even downstairs on radio it sounds very promising.......and I'm collecting bits for a killlerdac that I may never actually get but now is a good time for bits.......
Hows the little one going? Looks like I will be in the same boat in a few(8) months. Still coming to terms with that!
We have things to try with the little dac, separate supplies to the different channels, try I2s into it at some point, make sure the clock is doing what it is supposed to, your little clock uses the same oscillator the dac has, can you pas onto the boy what you are doing please, so be interesting to see what a clean supply will do, now I have a CD94 to play on, just need amps and speakers, and a way to show the wife what I already have in stock from years of buying but no playing..........oh the mastercard look I'm gonna get......
-
Heya Mario,
Currently nowhere, no time with work, moving etc. Me not having an actual system at this stage doesn't help, lots of plans, not enough time. Have some Obligatto caps to try, both coupling and psu filtering, have built a little pre from a kit, will be waiting till the lad is in his new home before I get to really have a listen, but even downstairs on radio it sounds very promising.......and I'm collecting bits for a killlerdac that I may never actually get but now is a good time for bits.......
Hows the little one going? Looks like I will be in the same boat in a few(8) months. Still coming to terms with that!
We have things to try with the little dac, separate supplies to the different channels, try I2s into it at some point, make sure the clock is doing what it is supposed to, your little clock uses the same oscillator the dac has, can you pas onto the boy what you are doing please, so be interesting to see what a clean supply will do, now I have a CD94 to play on, just need amps and speakers, and a way to show the wife what I already have in stock from years of buying but no playing..........oh the mastercard look I'm gonna get......
8 months thats great its the best feeling until they get older and piss you off
the boy knows all my secrets :P
-
And then they get mobile with fingers! Can you lock the room?
-
i have a child barrier plan to solve my problem
-
Doesn't have four legs and a heartbeat and require feeding does it?
-
Doesn't have four legs and a heartbeat and require feeding does it?
i have one of them as well all i need is a cat and some birds.
-
Recommend Burmese Cats, we have two, they are like the dogs of the cat world, actually want to come and talk and be with you, very cool!
Get a stuffed bird, won't try to copy the music from the stereo..........and they don't number two which is, well. Good?
Kicked off a system thread, hope to keep me a bit more motivated.....
-
my dog dont like cats :D
-
what, they don't sh!t? amazing
-
http://www.arcol.co.uk/product-range/product-series.php?cid=15
anyone tried them ?
These are also worth a go:
http://www.farnell.com/datasheets/39351.pdf
Available from Farnell / v cheap.
Terry
-
Anybody any experience with the brand new type graphite/silver resistors of Duelund...
Besides that they are black color they are twice the price of the already good ones...
Only Partsconnexion seems to sell them...not even visible on the Duelund website... ???
I am quite interested in the 1.8 Ohm version approx. 10 Watt... ;D
-
Intact Audio custom wound resistors.
http://www.intactaudio.com/res.html (http://www.intactaudio.com/res.html)
(http://www.intactaudio.com/images/eye%20candy/15E.jpg)
(http://www.intactaudio.com/forum/files/mvc_042f_686.jpg)
Going to try a pair for the R-Load resistor on the dddac which apparently is very critical ;)
-
Ha ;D
What??? A $50 resistor??? Are you guys smoking crack???
That's a funny statement to find on the manufactures website but kind of echos the initial train of thought!
This must be even more stimulus to wind your own surely (stop calling me Shirley) Mario??
Smoked any pancakes and a waffle lately ;)
V
-
Ha ;D
What??? A $50 resistor??? Are you guys smoking crack???
That's a funny statement to find on the manufactures website but kind of echos the initial train of thought!
This must be even more stimulus to wind your own surely (stop calling me Shirley) Mario??
Smoked any pancakes and a waffle lately ;)
V
$50 is nothing with 20k for drivers ;)
-
Agreed
But look how many resistors are in an average product and it all gets very expensive all too easily hence why manufacturers use 0.5 cent rubbish.
What??? A $50 resistor??? Are you guys smoking crack??? Still think this is funny for a manufacture to put on thier webpage, well done guys!
V
-
Agreed
But look how many resistors are in an average product and it all gets very expensive all too easily hence why manufacturers use 0.5 cent rubbish.
What??? A $50 resistor??? Are you guys smoking crack??? Still think this is funny for a manufacture to put on thier webpage, well done guys!
V
Looks like a nice air cored inductor to me :)
-
What about these ones?
http://www.ecdesigns.nl/components (http://www.ecdesigns.nl/components)
(http://www.ecdesigns.nl/image/cache/RIV1-800x600.jpg)
High performance handcrafted wirewound Mobius / Honeycomb I/V resistor for use in TDA1541A DAC module. Resistor offers low noise due to high wattage, is non-inductive (Mobius loop) and has low self capacitance (Honeycomb winding pattern). Resistor is also non-magnetic and wires can be soldered straight into the PCB (minimum losses).
Only $77US each!
-
What about these ones?
http://www.ecdesigns.nl/components (http://www.ecdesigns.nl/components)
(http://www.ecdesigns.nl/image/cache/RIV1-800x600.jpg)
High performance handcrafted wirewound Mobius / Honeycomb I/V resistor for use in TDA1541A DAC module. Resistor offers low noise due to high wattage, is non-inductive (Mobius loop) and has low self capacitance (Honeycomb winding pattern). Resistor is also non-magnetic and wires can be soldered straight into the PCB (minimum losses).
Only $77US each!
That's much better! :)
T
-
Anybody any experience with the brand new type graphite/silver resistors of Duelund...
Besides that they are black color they are twice the price of the already good ones...
Only Partsconnexion seems to sell them...not even visible on the Duelund website... ???
I am quite interested in the 1.8 Ohm version approx. 10 Watt... ;D
I have tried these. They have silver lead out wire. Thats a worry. Sound wise it was not my first choice.
-
Anybody any experience with the brand new type graphite/silver resistors of Duelund...
Besides that they are black color they are twice the price of the already good ones...
Only Partsconnexion seems to sell them...not even visible on the Duelund website... ???
I am quite interested in the 1.8 Ohm version approx. 10 Watt... ;D
I have tried these. They have silver lead out wire. Thats a worry. Sound wise it was not my first choice.
They would probably be a bit clean / lean / clear for your taste, I would imagine something like a vishay bulk foil.
Looking at the rest of EC's system it's quite a departure from how you are doing it. A lot of what he does is very radical,
he's a very non conventional thinker (for better or worse). Sometimes it works, sometimes i'm not so sure.
AFAIK he's using straight copper, no silver.
What type did you evaluate / what value?
-
Another interesting DIY resistor, made first for cathode then for I/V
http://diyparadise.com/forum/index.php?topic=1269.msg13072;topicseen#msg13072 (http://diyparadise.com/forum/index.php?topic=1269.msg13072;topicseen#msg13072)
-
wooo.. that is true hardcore diy style. Very interesting :)
-
Another interesting DIY resistor, made first for cathode then for I/V
http://diyparadise.com/forum/index.php?topic=1269.msg13072;topicseen#msg13072 (http://diyparadise.com/forum/index.php?topic=1269.msg13072;topicseen#msg13072)
thats really cool i must try some diy resistors ;)
-
Another interesting DIY resistor, made first for cathode then for I/V
http://diyparadise.com/forum/index.php?topic=1269.msg13072;topicseen#msg13072 (http://diyparadise.com/forum/index.php?topic=1269.msg13072;topicseen#msg13072)
thats really cool i must try some diy resistors ;)
By all means do it but you have to wind them non inductively. To do this it must 'wind back on itself'.
IOW, say you need 2m of wire, the 1st 1m is wound in one direction then the 2nd 1m is wound back the opposite way.
T
-
Anybody any experience with the brand new type graphite/silver resistors of Duelund...
Besides that they are black color they are twice the price of the already good ones...
Only Partsconnexion seems to sell them...not even visible on the Duelund website... ???
I am quite interested in the 1.8 Ohm version approx. 10 Watt... ;D
I have tried these. They have silver lead out wire. Thats a worry. Sound wise it was not my first choice.
So what is the first choice then Steve??
Come on we are waiting with baited breath!!!
v
-
Inspired by this site i found this.
http://www.dhtrob.com/projecten/dhz_weerstand_en.shtml
Could be just the ticket for that exact value.
Rob
(no i am not dhtrob)
-
Inspired by this site i found this.
http://www.dhtrob.com/projecten/dhz_weerstand_en.shtml
Could be just the ticket for that exact value.
Rob
(no i am not dhtrob)
I have made my own resistors. but only small values. I used resistance wire put through corrugated cardboard worked very well. Sounded better than what i could buy.
-
Anyone tried these : http://www.rhopointcomponents.com/products.asp?recid=184 ?
-
Hi Gordon ;D
No, not tried them. :-X
0.3 of a watt power rating excludes them from a lot of uses for what most valve owners would want, whilst they resemble the body of bulk foil Vishay VSRJ's they are not made in the same way so whilst they may improve on your average quarter watt metal film resistors there are alternatives out there which may sound better. The data sheet talks of a wound resistance element, shame they are not higer powered as the price appears reasonable. I have used Vishay resistors with sucess before but they are considerably more expensive, if you do try them please report back.
According to Audio note the Vishay resistors do not produce the same musical rendition probably due to being essentialy 'colourless without distortion' unlike carbon and tantalum resistors. I have just purchased some tantalum and carbon resistors along with some Dueland resistors to install into the DAC so will see how they compare to whats already there. I was surprised to find the Tantalum resistors (2w) weighed considerably more than the Allen Bradley carbons resistors. The Duelands are of a different construction all together but have really decent lead out wires unlike the gunged up (oxidised) tants and AB's. See image.
V
-
Hi V , will be interesting to hear your findings.
The Squaristors will be for use as dicrete IV resistors so I guess the .3w rating should be a non -issue.
The Shinko ,tants sound better than the internal resistors on the universal valve stage .
Will grab some of the AB's at some stage and do my own comparo.
Cheers,
Gordon
-
A while ago I experimented with my resistors in the speakers.
Not the value...that was painstakingly achieved in the past but the materials and brands.
First the Kiwames were winners each parcel 2.7 Ohm and later the Duelunds.
The Duelunds were very hard to find in that value and they vary like crazy.
First they had a deviation of +/- 5 percent (written on it) later on even 10 percent ....+/- !!!!!!!!
I contacted Duelund and they argued that it was simply the way they had to build them....you have
lo live with that.
Some shopguy I know wanted to measure a whole batch to get exactly 2.7 Ohm and succes !!!!
They were far better than the Kiwames...but no need to tell you that any deviation from the 2.7 Ohm
makes comparing resistors in a filter considerably difficult if not impossible.
BTW careful they break easy...
-
Tubes and carbon resitors.........for me a match made in heaven...once you listen to the difference it is incredibly easy to forget the perfect specs of the others.... 8)
-
Glad to hear it Erik. ;D
As you'll have read, the white coats c/w osilloscopes don't always come up with the goods with the modern metal film and other 'perfect resistors' is a view shared here by some. :-X
Once the resistors are in and broken in I will report back.
What's your view of the tantalum resistors? Have you tired these also? ::)
I was surprised in the more than double the weight of the carbons. ???
V
-
Nope I have no experience with them besides taking one tantalum out of the dac ( was part of its design) and learned to live with the increased output/volume level.....the result was stunning.
Unfortunately that does not give any info ...besides that the best resistor is no resistor :D
-
Where abouts was the tant resistor excatly? If it altered the level was it the I to V position or to ground across the RCA's?
Thanks
V
-
Spot on your first guess....we were amazed that there was placed a resistor :o
The dac came in and within an hour that resistor was out... ;)
I must admit that my audiobuddy went in a search and found out, I am not
in the same technical league 8)
-
OK so in the I to V position, hmmm so what converted the I to V once the resistors were removed?
Or did you replace them with different resistors or transformers?
V
-
I had the standard copperwinded interstages on that spot which I recently replaced (after 25 years ;D) with silver...ohhh man I should have done this much sooner.
Before I talk rubbish I will ask my audiobuddy the details....he made his move while I was putting the kettle on......eternally greatful 8)
For some reason I still believe we did not replace it. I have Vishays on the RCAs
-
Tech question WRT resistors, specifically the common "cement brick" type wirewounds.
Am I right in suspecting these of having inductance that might be a cause of phase shift in a circuit and that it might be beneficial to replace them with purportedly non-inductive types such as Mills ?
Particularly where there are a number effectively in series.
-
Is it not so that all reistors cause phase shift...
I know people who prefer the cement sometimes "preferred by listening"....so...
-
Is it not so that all reistors cause phase shift...
I know people who prefer the cement sometimes "preferred by listening"....so...
nothing wrong with cement in some places
-
Yeah like cracks in the floor ha ha. :P :P :P :P :P :P :P :P
The flame proof cement resistors are usually deployed in speaker crossovers and bypasses on oputput stages, there are however much better resistors out there so don't bother with them unless cash strapped.
V ;D
-
Yeah like cracks in the floor ha ha. :P :P :P :P :P :P :P :P
The flame proof cement resistors are usually deployed in speaker crossovers and bypasses on oputput stages, there are however much better resistors out there so don't bother with them unless cash strapped.
V ;D
Hey they are my bias resistors in my amp work very good in that position
-
Yeah like cracks in the floor ha ha. :P :P :P :P :P :P :P :P
The flame proof cement resistors are usually deployed in speaker crossovers and bypasses on oputput stages, there are however much better resistors out there so don't bother with them unless cash strapped.
V ;D
You would be surprised how often you find them in state-of-the-art speakers next to the speakers supplied with Duelunds. I kid you not.
As always the proof is in the listening... ;)
Here is one filter with them in...the Avalon Opus Cermique...not a bad speaker...
-
:D :D Argh ha, yes indeed most speaker manufactures use them and guess why..........they are CHEAP :o and don't burn out when some idiot bedroom DJ decides to overdo the volume. Come on chaps we have not come this far to kid ourselves have we? ::) The metal (ali) shrouded resistors are better and come in sizes up to 200w, the cement ones petter out at around 8 - 10 watts, still want to use them, they are not even wound non inductively Mario so HF is questionable?
V
-
I have to disagree, you can easily see that the manufacturer especially Neil Patell uses very good (expensive) materials in the same circuit...
Do you not agree that in the end your ears have to be the judge not
your eyes nor the technical specs... ;)
I myself sometimes exchange the so called "proven" Hi-Fi parts for a simple run-of-the-mill with surprising results...
I do not want to argue about your alternative resistor since I do not know that one... ;)
-
Hey no worries Erik. ;D
Use whay ever you want. The circuit as a whole is the important thing and sympathetic resonaces and filtration to brew the final outcome is what is the key point. I am not 'blindly led' when it comes to selection of componets by price tag or reputation but by judging these things with my own ears and multiple systems. Having read others experiances with various components it does aid in coming to a better outcome and the Duelands caps are a good example. I still like Vishay slit foil resistors whereas others will poo poo them claiming tantalums are the only one worth having. Horses for courses. The ali clad resistors are easier to mount and can handle more power and they are still flame proof; they also have better connectors which are far more robust than stray wires which fracture relatively easily. Run of the mill parts are just that, you having deployed Ag output transformers and Ag Duelands are the LAST person I'd expect to support every day built down to a nickle rubbish parts. :o :o :o :o :o :o
V
-
Hi only yesterday I again received proof of that... :D
I swapped a Tango choke for a Pameko in a tube rect circ....ohhhhh what music...........................................came from the Pameko.
for the moment the el cheapo stays in :D
-
Since when were Parmeko considered cheap?
The are very well constructed transformers built way better than the average of recent times. I guess they do not have the pimp prices of the Tango jobbies (yet) but the one's I own are really well built.
I will post some pictures when I get the chance to show others what I mean.
V
-
Like this? http://cgi.ebay.com.au/ws/eBayISAPI.dll?ViewItem&item=230742949717
Very well built indeed, good price too (for the seller), not cheap for sure :)
-
Since when were Parmeko considered cheap?
The are very well constructed transformers built way better than the average of recent times. I guess they do not have the pimp prices of the Tango jobbies (yet) but the one's I own are really well built.
I will post some pictures when I get the chance to show others what I mean.
V
Hi,
Sorry I did not explain proper...the el cheapo term came from sheer happiness once in a blindtest me and my buddy picked the Parmeko.
I did not mean cheap as in poor built, but here in Holland I can get the 5H Parmeko choke for 20 euro the Tango choke at 200 that is what I mean.....
For me it was a clear winner against...Tango and Audionote...so it stays 8)
-
20 Euros is a BARGAIN price for a vintage Parmeko, they are constructed like no other, particualy the Neptune range as Junty illustrated. I was expecting you to say the Tango's to be a lot more expensive. This kind of Parmeko chokes are considerably more expensive here in Australia and I would be stocking up at just 20 Euros each. Nice find and thanks for sharing your view that they exceeded the performance of the highly regarded Tango's.
Just one question, was the resistance and current rating the same for both units and was the mH the same?
Thanks Erik
V
-
Erik, we'll pay you 20% commission, if you'll export them to us. 8).
I'm serious. :D
-
Erik, we'll pay you 20% commission, if you'll export them to us. 8).
I'm serious. :D
Seconded ;D
-
Thirdeded.
Word of the day.
-
Make sure you have a bucket of water for when they arrive, at that price there might be some 5 finger discount involved!
-
I guess you guys are dying to get a link.......I will try to find something on the internet.
I bought it from my friend in his audioshop I will ask him as well... ;)
-
Just one question, was the resistance and current rating the same for both units and was the mH the same?
Thanks Erik
V
They were exactly the same (as much as possible) 5H and we even used the Tango in variuos ways from 2.5H upto 10H.
The way the Tango was built (the TC range) we rackoned it should have been far better TECHNICALLY (resonance peak) ans AUDIBLY...but a big NO
The AudioNote was cold and hard in comparison.
Next week I wiIl have another possibility to test another Tango 5H this time winded with thicker wire....so let us see.
I also have a Parmeko Transformer (not bought yet) it will be part of a Transformer shoot-out in a later stage.
I am suddenly not keen anymore to spend 500 euro's on a Tango Transformer and 200 euros on the choke....if you know what I mean.
Brandnames only tells you that quality and technology is good...NOT how they sound in your system. I still learn everyday ;D
The U52 tube is 250 euro's but that was money well spent.....it completely killed the GZ37 (and that is NOT a bad tube to say the least) in my setup.
I am spamming the resistor topic :o.....mods go ahead no problem...
-
http://www.elektrodump.nl/1535-Parmeko.html ;)
-
I ordered these promising resistors of Vishay the naked version Z-foil.
Two of 150 ohm for my dac....over the weekend I will let you know...
(http://t0.gstatic.com/images?q=tbn:ANd9GcSmDto5wApjjXAPQr-Zb5RFQ1LT2i0HErIWxgAr6RfrmDoifXM_eQ)
-
Also apparently the Neohm no inductive wirewounds from RS are pretty good too! Have read one comparison that reckoned the vishays were a bit dry and clinical, while the neohm's added back warmth. This may also has been because the vishays didn't get time to burn in.
Just one more thing........
-
As usual it is like cooking.....in your testreport which resistor did the Vishay Z-foil replace...i guess that could be of importance to find out.
In the coming days i will implement them, i must admit that i cannot myself experience a burn in factor with resistors such as I do with caps... To me they "sound" good or less good straight away ;)
-
Sweet, Eric!
Been wanting to try those myself, but yet to order some.
Looking forward to ya' findings/impressions 8)
-
;D Vishay resistors come in several different types including the naked ones. VSRJ and the cheaper VSH can be readily found; they come with varying temp coefficients and tolerances from memory. As they will effect the sound less than most other same power rating resistors I can recommend them in feedback loops around opamps (ouch), used in output stages compared to normal half watt metal films they as way ahead in bass clarity and timing compared to many others. Unfortunately they only seem to be available in low wattage's or else they would be more widely applicable. I believe they have less smear too bringing more HF detail.
It's really hard to believe that such a benign device can make soo much difference so I encourage you to experiment. Apparently the computer nerds will be using resistors to store data much like current RAM so this proves the 'memory effect' that many suffer from, less so with the slit foil Vishays.
V ;)
-
(http://www.htforum.nl/yabbse/index.php?action=dlattach;topic=76211.0;attach=125424;image)
These handmade babies easily outperform my favorite Naked Foil Vishays...In the cd transport SPdif
The King is dead, long live the king... 8)
-
Are they resistance wire, rapped around something so the wire does not touch together. I have made them like that, but only in small values up to 500R.
-
Ik get the idea that they are made different....
I bought them of Jaroslaw who runs studio Zey with handmade natural materials...so right up my alley 8)
www.studiozey.com (http://www.studiozey.com)
Very painstaking work so not cheap but once heard a no-brainer...
0.125watt anything up to 10k