I have to bump this thread, I thought I would get the opinion of some of the Kemper users out there. I finally got the chance to play one the other day and I was in part very impressed, but in other ways rather disappointed. I should preface this by saying that I was playing it a Guitar Center store, so I have no idea where the profiles came from or how old the firmware version was on it. Also, the guitar they had on hand had EMGs, so probably not the best thing to use for some of the tones I was testing. The higher gain settings sounded immediately great playing straight into an orange cab of some kind, probably with V30s, but I didn't really look at it. The issue I had was that when playing mid to low gain profiles, fender and vox (I tried several of each) when rolling off the volume to attempt to clean up the sound it developed this low level background noise sort of like the wash of a high gain amp in the background beneath the clean sound, very distinct and separate, almost like another signal. My initial thought was that it is some kind of aliasing or digital artifact that becomes apparent when the input signal is dropped, but I don't know enough about the device to rule out other factors. I did find an old thread about aliasing on a kemper forum that seemed to indicate that there was an aliasing issue that was never resolved, but that was from about 3 years ago. Is this kind of thing just a shortcoming of the equipment or the process used or was there something else going on?