Yeah, right now it's alot louder than the old setup for about 5 seconds then the volts drop down to about 10-10.5 so the subs aren't getting very many watts and the loudness wears off. But, once he gets a bigger alty, the volts should stay pretty high, which will equal a louder system. Does anyone know where he could get a good new alty for this truck. I think he wants something in the 200 to 250amp range, and if he can find one cheap, maybe a 300amp.