[linux-audio-user] Poor SN ratio with high quality sound cards

[John Anderson]

On Wed, 2004-03-24 at 08:20, Mark Williams (MWP) wrote:
> Really the only thing you can do is invest in a good quality external DAC and
> run a SPDIF (optical preferably for ground isolation) signal to it.
> 
> It seems a lot of high quality soundcards now are quoting the S/N and other
> stats of those of the DACs used on the card, not by measurment of what actually
> comes out of the back of the card.
> 
> The main problem is the power supply in the PC.
> Its just far too noisy to be able to produce good quality audio.

Would using a good-quality power supply make a difference? Something
like this:

http://www.zalman.co.kr/english/product/zm400b-aps.htm

bye
John