hello. the other day i connected two amps in a parrell circuit in my car (meaning one earth for both). they worked fine for 5 mins but after this the smaller of the two amps started flickering on and off (making the speakers sound like machine guns) and proceeded to smoke a bit. i have disconnected the working amp and used the wires from that on the smaller amp (as if only wiring up one amp) and the problem perstists. i have opened the amp too but there does not appear to be any burnt/singed parts. could it be that the amp is faulty ? or could be be something to do with the speakers im using ? any ideas will be of great help.