Just tried again with some 192khz music and it does not work. This is what the faq at Audioquests web site tells on the subject:
I purchased high-resolution music files at 24-bit/176.4kHz or 24-bit/192kHz. Can I play these files using my DragonFly?
If you have purchased a file that has a higher sample rate than 96kHz you need to configure your computer to send DragonFly audio data at a resolution no greater than 96kHz, and for the best performance the sample rate you choose should be exactly half the sample rate of the file you’re playing. For example, if you purchased a 24-bit/176.4kHz file 88.2kHz should be selected, whereas if you purchased a 24/192kHz file 96kHz should be selected. Directly divisible sample rates prevent the computer from doing sonically degrading, complex math in its conversions and allows DragonFly to sound its best.
Edited by nc8000 - 12/20/12 at 8:27am