I like the tone of my amp, but I have the usual complaint of not enough volume at hard-rock level gigs. So I've taken to using my QSC RMX 1450 to amplify the balanced line out of my amp, and the results are great. My question: Will running the Ampeg with no speaker load do any damage? Would a power brake be called for here? I wonder if I should yank out the power tubes and use the head strictly as a preamp. Any thoughts on this all you Ampeg fanatics?