I have a Keith McMillen K-Mix audio device that I use for music-making. I noticed, though, that if you have a simple stereo setup on this, with, say, monitors plugged into outputs 1 and 2 (the master outs) then you basically lose a huge amount of bass response on Linux. I confirmed this trying it on Windows and Linux and, in Linux, the bass is totally missing. In fact, the sound is weak.