Very interesting parallel CS4398 DIY DAC with 5 inputs and display - diyAudio
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Old 24th October 2011, 10:32 AM   #1
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Default Very interesting parallel CS4398 DIY DAC with 5 inputs and display

I am going to build a digital line level preamp with tube output stage. After reading loads of posts about wonderful sounding Chinese DACís, again and again my attention is drawn to this good looking full featured DAC. On DIY audio there is not much written about this DAC. Has anyone already experience with it?

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It is available from several Hong Kong Ebay-ers, so this is only one example.

One of the features is a CS4398 DAC in parallel configuration. Am I correct this lowers distortion and noise, or are there more benefits?

Peter
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Old 24th October 2011, 04:30 PM   #2
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Quote:
Originally Posted by pietjers View Post
Am I correct this lowers distortion and noise, or are there more benefits?
I'm not sure that you are correct. The datasheet for the CS4398 shows the dynamic range as typically 117dB (unweighted). The measured results displayed on the eBay page give a figure of 112dB. THD+N is claimed to be -107dB typical, the measurements on this board are giving -103dB.

Unless their layout is markedly suboptimal, it appears that adding an extra DAC has degraded both figures significantly.
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Old 24th October 2011, 06:23 PM   #3
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Thank you for your reply.
I am a tube man, so in my eyes these distortion and noise figures are pretty impressive.
Peter
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Old 26th October 2011, 10:07 AM   #4
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Ebayer Hiamplifier made a youtube movie about this DAC.

Here is the shortcut:
DAC Demo.flv - YouTube

He told me also that he has direct contact with the developer of this board and can give first hand information and technical support.

Peter
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Old 26th October 2011, 04:50 PM   #5
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It uses CS8416, I would go for a solution with WM8804 or WM8805.
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Old 26th October 2011, 08:38 PM   #6
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Jean-Paul,
After many years of designing and building amplifiers this is my first step in digital audio. With prebuild boards I think there will always be things left to desire. I mainly focused on the high performance voltage out DAC (in parallel configuration). Because I want to use it as digital preamp, build in features as remote controlled input choice, volume control and display etc. are interesting features.
I ordered my board today and will explore to what level it can be pushed.
Peter
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Old 26th October 2011, 09:24 PM   #7
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"There is always something to desire". That is absolutely right but when you know beforehand that it has a mediocre receiver why make all the effort ? A chain is as strong as the weakest link. Even if it has high performance parallel DAC chips: when fed with jittery data they won't perform as they can. HifimeDIY offers a CS4398 DAC with one of the best receivers and low jitter clocks on board...

Features might be nice but I would prefer low jitter and thus better quality. Matter of taste I guess.
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Last edited by jean-paul; 26th October 2011 at 09:27 PM.
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Old 26th October 2011, 10:14 PM   #8
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Jean-Paul,
Which one exactly?
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Old 27th October 2011, 11:16 PM   #9
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I would also be very interested in which DAC HifimeDIY you would recommend, I have also just entered the world of digital DAC etc.
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