Ok, I have a guitar amp question. I've recently joined a rock band with 2 guitarists. We do some pretty heavy stuff (which is a blast) but one of the 2 guitar players has got the LOUDEST rig I have ever heard! It's painful. We've all asked him to turn down during rehearsals, but he claims that he can't. He says that his head (a marshall, the one with 3 channels) is down all the way. I asked him about the VPR button (virtual power reduction) but he claims that running his head in VPR mode is damaging to his tubes. Is that true? Also, why would his rig be so loud? The guys got the same head as the other guitarist, and he's half the volume! I know the offender's cabs r 4 ohms, but MAN, is it loud. I wear plugs, but it still hurts!