I'm embarrassed to admit it, but I haven't been able to notice any difference in sound quality between onboard audio and my old Santa Cruz.
Either:
(1) my ears are failing on me in old age (25 years is a long time, riiiight)
(2) my Altec Lansing speakers suck (then why did they cost $180?)
(3) the on-board audio actually is OK, and the sound quality difference is minimal enough that I'd have to actually be looking for it to notice
This is rather amusing because when I upgraded fom SB Live! to Santa Cruz back in 2001, the difference in sound quality leapt out at me...
UPDATE: Going to put my Santa Cruz back in. The 3dmark03 sound test reveals that onboard audio can't handle 60 sounds at once, which may make a diff in some games.
