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RE: Raspberry Pi Audiophiles?

Posted by soundchekk (A) on August 9, 2016 at 02:33:59

In Reply to: RE: Raspberry Pi Audiophiles? posted by fmak on August 6, 2016 at 11:41:18:

The PI doesn't have a clock problem. The RPI is known though to come with rather low Q I2S - in case you run the PI as clock master!

If dimdims 3 year old measurements should be considered reference measurements that prove everything, especially your personal "opinion", is a different story.

Beside that there have been numerous bug fixes and enhancements
introduced to the I2S HAT DAC drivers, especially in the clocking area.
I've been following up on this subject in particular for quite some time.

Then there are specific HAT DAC implementations fighting low Q I2S:

Sabre DACs are marketed as jitter killers (MamboBerry/Audiophonics iSabre).
HifiBerry DAC+ Pro has its own high quality clocks running as clock master.
Even without these external clocks the widely used Ti PCM5122 can run as clock master.
Then, why bother about PI Jitter?

Ok. I know - it's not that easy.


"Lower cost circuity" -- What does that mean ??

On Ebay you'll find chinese DAC boards at below $100 that put audiophile
commercial DACs > ten times as much to shame just by looking at the BOM.
The same applies to highest quality soundcards build by Asus or similar.



All I can say is that with a little OS tweaking and proper power supplies
a properly chosen HAT DAC can beat and beats many commercial USB-DACs out there at a fraction of cost in terms of soundquality.

IMO also fact is, you won't achieve high quality sound, by just hooking such a HAT DAC up, load latest Volumio and push play.




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