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Transports / Re: Raspberry PI transport with I2S output into TDA1541A
« Last post by stevenvalve on August 24, 2019, 01:49:27 AM »
We ran 48kHz into the KillerDac, I have never heard it sound do good. Computer audio has arrived. It just annihilated any computer audio system i have ever heard. No actually it annihilated any front end i have heard. I guess it always should have in theory and it finally did.
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Transports / Re: Raspberry PI transport with I2S output into TDA1541A
« Last post by stevenvalve on August 24, 2019, 12:26:53 AM »
More pictures for your entertainment. Connected direct to Clock, word, Data, ground. This device sounds amazing, amazing, amazing, i am getting mine battery powered as soon as possible. Is it that good, nooooo its better. Never heard it so good. WoW
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Transports / Re: Raspberry PI transport with I2S output into TDA1541A
« Last post by stevenvalve on August 23, 2019, 11:42:33 PM »
Hi Danny here at Steves,

The unit is an XMOS based device USB to I2S. Using foobar2000 with SACD/DSD component installed for DSD playback possibility. DSP configured to output 16bit/44.1kHz obviously for the TDA1541. (For PCM sources you could do 48kHz too if you want, but best to choose the sampling rate that is evenly divisible into the source sampling rate. eg. 44.1kHz for 88.2kHz, 176.4kHz or 48kHz for 96kHz, 192kHz sources etc...)
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Transports / Re: Raspberry PI transport with I2S output into TDA1541A
« Last post by stevenvalve on August 23, 2019, 11:41:28 PM »
Hi all, Danny has brought over his device for USB to I2S direct streaming into the Killer Dac. I will let him explain how it works, and i have some pictures
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Transports / Re: Raspberry PI transport with I2S output into TDA1541A
« Last post by ozmillsy on August 21, 2019, 07:58:43 AM »
The items have arrived,,,,, now to find the time in the busy schedule to assemble and test.

Roon has been licensed, I will be using it as my software solution of choice for streaming, whether this i2s unit works or not. 
The boss dac sounds bloody good, for its economical price point. I also have 3 squeezebox devices, that Roon streams to (in place of my Logitec Media Server).  Its a nice multiroom system, that I will be keeping.
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Transports / Re: Raspberry PI transport with I2S output into TDA1541A
« Last post by ozmillsy on August 15, 2019, 02:57:39 PM »
This is the Boss DAC, from Allo.

I ordered it a week before ordering the components to make the i2s box.

The Boss is operating as a Roon end point, booting with same dietpi OS and running over wifi.

It is sounding quite nice, for its U$129 price tag.

It's promising,,,, if the i2s version feeding KillerDac sounds better, I will be happy.
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Transports / Re: Raspberry PI transport with I2S output into TDA1541A
« Last post by ozmillsy on August 14, 2019, 10:35:16 AM »
The second scenario I will test, is a simpler configuration where the Raspberry PI does more work, in that it is not just streaming but also doing the music library management.

See the pic attached.

In this solution,  the Raspberry Pi is booted with the Volumio solution.
The music files will be on a USB drive, directly connected to the Raspberry Pi.  I am doing local files via USB, to remove network latency from the equation.   But I can read files off the home nas aswell if I want.   
Volumio also has plugins for Spotify, Tidal, Qobuz, etc.
It's free.
It isnt multi-room, it is a single system solution. 


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Transports / Re: Raspberry PI transport with I2S output into TDA1541A
« Last post by ozmillsy on August 14, 2019, 09:58:10 AM »
The Roon rock controller does alot of smart things.

It is multi room aware, and can stream audio to end points all over the house.   It was developed by the same guys who wrote the Sonus system.

With different end points, it gives the user the ability to configure how those endpoints receive the data.   If it is an endpoint that only does 16bit pcm,,, the rock controller can convert all data to that format on the fly.    I can't comment how good the conversion is yet, until I connect the KillerDac and do some critical listening.  But it can be configured to use HQplayer, if you have that licensed.    I can confirm that DSD conversion works with Roon, without any extra software.   It is currently streaming my DSF files, to Squeezebox endpoints in my home office and bedroom.

The Rock controller also integrates Tidal and Qobuz streaming services. I am doing a free trial on Tidal at the moment,and the integration is really nice

But the Roon solution is expensive .  U$100 odd a year to license it. 
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Transports / Re: Raspberry PI transport with I2S output into TDA1541A
« Last post by ozmillsy on August 14, 2019, 09:38:53 AM »
Got a shipping notice over the weekend,  so the gear is in transit from China India.

To kill some time on the train this morning, I drew a diagram of the first configuration I will try,,,, the Roon system.

Everything is in place, except the Raspberry Pi I2S box that will connect the KillerDAC into the Roon system.
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Transports / Re: Raspberry PI transport with I2S output into TDA1541A
« Last post by ozmillsy on August 09, 2019, 09:00:26 AM »
Hey T, cool.

Will post pics and experiences.   All items have been ordered.

We have the electronics wizards here, to build high quality i2s boards,, and that is where alot of beauty is found or lost for handling digital music.

But I need more than that,,, I need the network connectivity and music library management options aswell.   

I figure if I can make this work,,, then a better i2s board could possibly be integrated with the Pi down the road?
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