My bandleader is concerned that the sound from my amp will bleed into the vocal mikes and thus overload the overall signal with bass. He asked if anybody turns their amps around so the sound doesn't bleed into the mikes. Well, then how am I suppossed to hear it?! What do you guys do to correct this problem when playing live? Noise gates on the vocal mikes maybe? We don't have subwoofers in our P.A. so I have to crank it pretty good onstage.