ok, take a bag end S15-D, handles 200W continuous. say i hook it up to my SWR workingman 15 combo, thereby running 100W into it. is this really bad, and if so, only bad at high volumes or what? i'm wondering because i've heard of those little smokey amps powering 4x12 guitar cabs, in fact they recommend it on the website. so what's the skinny?