http://www.millionbuyplus.com/list_product.php?category=CarAudio&sub=PowerAmplifier&last=AmpKole Go there and match the rms of the subs with the rms of the amp at the proper ohm, those amps are nice and good for the price they are. Remember you can have less watts running to your sub, that doesn't hurt them but when you over power them with the amp, is when you blow your subs.