I was at an event where we were playing some USB dac's (I brought the new amazing PS Audio PWD)
A gentleman who brought his PC to play USB mentioned that he did a shootout with his friend's macbook and
his own PC laptop, into the same USB DAC, and the PC sounded better. I do know he was using the best software method
for getting audio out of the PC (bypassing K mixer, etc). I should have asked him if they disabled the audio enhancer in Itunes - which it would seem
logical for them to have done so as anyone serious about using Itunes into a high end rig would.
Is there anyone else who has tried this and can comment. I would not expect there to be such an audible difference.