Kicker don't suck, Its just a faulty amp. They should send you a new amp for your troubles. Sending the same one back is b/s. I own and use Kicker products and rarely have problems with them. If they do get you a new 1500.1 I doubt you'll have the same trouble. How is your voltage when you used the 1500.1? There is a diff. between running a 1500.1, 750.1, and the Brutus 1600.