Does anyone know how much it would cost to service a faulty poweramp? Also, does anyone know how to put wires in binding posts? I've heard about side holes, but I can't find them on my amp. Are banana plugs unsafe? There's a little bit of wire hanging out of each plug conector (i've reinserted and reinserted, but always some wire sticking out. I'm thinking of covering the thing with electrical tape. Bad idea? To my understanding, both channels are hot when bridging two amps. If this is the case, would quarter inch plugs prove a shock hazard? With the ground on the metal outside of plugs, would it zap you if you touched the outside? Thanks!