Introducing the new PA D-Series Amplifiers from Polk Audio. Twelve-volt outlaws this is all you need to know: You're about to tap into pure, effortless power, the kind that will pump some guts into your music and launch every decibel into the stratosphere of performance. Ok, maybe you're a budget-minded enthusiast. No problem, we've got you covered. And for you rogues who live on the edge in the no-holds-barred world of audio competition, check out the way we un-cage some big fat, juicy watts for you. But whatever your ride, whatever your style--super-tuned import or gutsy American big-bore--PA Amps look lean and play mean. Plus they come in enough models that you can tap into the one that best meets your power needs: 2-channel, 4-channel, monoblock or an all-in-one 5-channel that will drive all your speakers and a subwoofer.