I am thinking of getting an AC30 (probably a CC1). The idea of using a treble booster into the Normal channel and using it as a one-channel amp appeals. My concern is that going from a two-channel amp setup I won't be able to get enough variation in sound, i.e. from clean to filthy, in a live situation without adjusting the amp. This would be impractical in the middle of a number. Is it really possible with the one channel setup to go from a fairly clean sound to a rich sustaining overdrive just from the guitar volume knob? Would the clean be clean enough - or loud enough (compared to the dirty sound)? Would I still need an overdrive pedal to get the range of sounds? I feel this would almost be equivalent to a two channel setup again.