Of course, the result depends on the quality of the sound card. With a cheap onboard solution, it is of course no good results. But it is noteworthy that sterophile.com the sound of a $ 499 sound card with the sound of a $ 12500 CD player compares.
your LYNX AES16 is certainly not a bad sound card.
But it is a digital sound card. You still need an AD converter. The connection AES16-AD converter is again a source of jitter.
regards
juergen