I know the only difference between the V2 and V4 is that the V2 is half the power, but has anyone here used one for bass? I've been looking for a V4, but I have a line on a V2 and was wondering what kind of clean headroom I could expect out of it. I'll probably only use it as a studio amp, but we record with minimal isolation and I still need it to move air. Anyone have any experience with this head? I might pick up the 4x12 cabinet with it, or maybe just use it with my 2x15.