Multichannel DAC

Olombo · 1st August 2012, 07:48 PM

Hello!

there seem to be thousands of DAC and DAC kits on the market.... but I need more than 2 Channels; at least 8! Crossovers, FIR correction etc is done in PC so I like to go out seperately for ech channel and amp.

I found 3 options:
- Buy a ordinary Audio interface (Rme UCX would be nice): Boring and quite expensive! ;-)
- Use minidsp USBstreamer and its l2s out. But then? Ok design l2s-analog converter according to example shematics I can do but is lot of work. Finished solutions I did not find with suitable DA chips (pcm179x or WM8741). Ideas or resources for finished solutions?
-Is it possible to connect more than 1 two-channel DAC to PC and use parallel but with different outputs? 4 DAC on 1 PC maybe a bit weird but if it works it may be the safest and best solution as plenty are available.

Thanks for your help and ideas for option 2&3!
Ron

presitige · 6th August 2012, 04:29 PM

hahaha you think same me is my idea

I2S had 4 signal
Master Clock
Left Right Clock
Serial Clock
SDIN
but 4 input it should be
SDIN1
SDIN2
SDIN3
SDIN4

Uploaded with ImageShack.us
but i don't have know how design circuit

Olombo · 7th August 2012, 07:01 PM

Hi,

at least one having same issues like me ;-)

But I guess I found the best solution now....

USBStreamer + Buffalo 3 DAC from twisted pear. If I understand everything right I can put in the 8 channels via I2S and get out 8 channels (4x stereo) converted by a reference dac chip. In the end not the cheapest choice (streamer, buffalo, power supply,... >500$) but a very good as it seems.

Other solutions still welcome :-)

cheers!

1st August 2012, 07:48 PM	#1
Olombo diyAudio Member Join Date: Jul 2012	Multichannel DAC Hello! there seem to be thousands of DAC and DAC kits on the market.... but I need more than 2 Channels; at least 8! Crossovers, FIR correction etc is done in PC so I like to go out seperately for ech channel and amp. I found 3 options: - Buy a ordinary Audio interface (Rme UCX would be nice): Boring and quite expensive! ;-) - Use minidsp USBstreamer and its l2s out. But then? Ok design l2s-analog converter according to example shematics I can do but is lot of work. Finished solutions I did not find with suitable DA chips (pcm179x or WM8741). Ideas or resources for finished solutions? -Is it possible to connect more than 1 two-channel DAC to PC and use parallel but with different outputs? 4 DAC on 1 PC maybe a bit weird but if it works it may be the safest and best solution as plenty are available. Thanks for your help and ideas for option 2&3! Ron

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6th August 2012, 04:29 PM	#2
presitige diyAudio Member Join Date: Sep 2011	hahaha you think same me is my idea I2S had 4 signal Master Clock Left Right Clock Serial Clock SDIN but 4 input it should be SDIN1 SDIN2 SDIN3 SDIN4 Uploaded with ImageShack.us but i don't have know how design circuit

7th August 2012, 07:01 PM	#3
Olombo diyAudio Member Join Date: Jul 2012	Hi, at least one having same issues like me ;-) But I guess I found the best solution now.... USBStreamer + Buffalo 3 DAC from twisted pear. If I understand everything right I can put in the 8 channels via I2S and get out 8 channels (4x stereo) converted by a reference dac chip. In the end not the cheapest choice (streamer, buffalo, power supply,... >500$) but a very good as it seems. Other solutions still welcome :-) cheers!