Obviously this is my first post but I have been visiting this site frequently over the past couple of months. I am building a new stand alone headphone system and have a question. I currently am listening to .WAV files on my HD650's right out of an HD audio card on my laptop. A USB Uber Bifrost / Lyr combo arrived today and being new to using external DAC/Amps I have a question. What is the best way to set up my laptop to feed the Bifrost /Lyr to obtain the best SQ. Foobar, Wasapi?