In short: It seems to me my Audigy-2 produces (high-frequency?) noise when using the kX drivers, whereas the sound from the Creative drivers is clean. Explanation: I connected the Audigy-2 to my new mixer, a Pioneer DJM-400. This mixer has a built-in 24 bit / 96 kHz sampler. It struck me that any sound I recorded from the Audigy was layered in a bed of white noise. Even when I played no sound at all, the mixer's sampler would trigger to the noise and record 4 bars of noise. Both the front and the rear channels had this problem. For comparison: my turntable, connected to that mixer, did not nearly produce such a level of noise, and also my computer's on-board SoundMax device yielded a clean recorded sample. Strange is this: you don't really hear the noise when you just play the Audigy-2 through the mixer, it only appears after having been sampled... Like there is some (high?) frequency content in the audio that the (high quality!) sampler reads as noise. This I could not believe: my supposedly top-notch soundcard appeared to be crippled compared to my other audio sources. The noise was really so loud, that I could not believe (even) Creative selling a soundcard with such poor quality. That's when I decided to uninstall the kX drivers and install (for the first time ever!) the Creative drivers - quite against my wishes, as I love the kX drivers for all its functionality. To my surprise: the noise was gone! One question remains: why? Does creative activate a low-pass filter that kX does not use? That would explain why some people describe the sound of kX as "crisper"... Or is there a output setting in kX that I missed?