Polk Audio PSW650, dual 10" drivers have 50% more area than a 12" driver. It is driven by a 165 watt amp (RMS) This is a very responsive and precise subwoofer with a variety of hook up options. It can take a simple Subwoofer out from a receiver (the best option) Or it can be wired directly to RCA or even speaker wire lines with a variable lowpass crossover. It can add bass to any system, and complement any set of speakers. I can deliver with Anchorage. It is pretty big and heavy.