Hello, My Rythem/Lead guitarist in my band wants to play his Gibson SG through his Carvin/Marshall tube head plugged into a bass cab. The thought process behind this is that he will get rich crunch lows. I hesitate to back him up on this because I don't know if they speakers can withstand that type of sound. 1. Is this a bad idea? 2. If not, what cab should he look at in the 300-400 range. 3. How important are ohms/watts 4. Would 4x10's, 1x15's or something else be the best for a guitar combo? Thanks for any input!