I've currently got a pair of Rokit8s that I like quite a bit and otherwise sound fine, but both experience something that sounds a lot like computer noise traveling through the audio. It's not a constant buzz or hum, its something more random. At the moment I'm using a 3.5mm to RCA cable from my xonar DX to drive them. I've been contemplating doing something like the Lexicon alpha, which I believe is a USB DAC with balanced outputs. I also tried the onboard audio and experienced the same thing. Curiously, I also have a pair of A2s and they do not experience the noise. Any ideas on how to remedy this?