No, not at all, no need to go with the digital out, although it would be interesting to see if it has any affect to the SQ, as your receiver would then be the source DAC.

I was simply pointing out that the Xitel doesn't have anything to do with the onboard soundcard as it plugs into the USB ports, so it bypasses the onboard sound.

Jason
M80 v2
VP160 v3
QS8 v2
PB13 Ultra
Denon 3808
Samsung 85" Q70