I can't seem to find any direct comparison, and the difference in audio quality may be so small that it doesnt even matter, but anyway:
What will provide better audio quality for stereo music, a dedicated stereo sound card (such as the Audiotrak Prodigy HD2) or the HDMI out on my video card ran to my Onkyo TX-SR608 (has Burr-Brown DACs (PCM1690))?? Im building a new HTPC, is it even going to make a difference?
If it matters for two channel listening I have the TX-SR608 Bi-Amped to two Polk Monitor 70s.