ok here is my problem. i normally run a "clean to crunch" profile and put my "real" stompboxes in front. a tube screamer, fuzz and a booster. my problem is that at higher gain levels with more volume, the kemper seems so "cut the sound off" at a certain level. the best example is, when i engage the booster, on a normal tube amp, the sound just gets louder without distortion. but on the KPA the booster reacts just like a distortion pedal, no more volume, just more distortion. the tubescreamer works pretty well on the kemper, still different than on a real amp. the fuzz pedal sounds pretty unflexible, i almost get just one sound out of it, no matter which setting i run...on a tube amp i can get lot of different sound out of my fuzz pedal...