If you've got a big room to fill or just love hard thumping bass, then check out this Polk Audio PSW505 12" 300 watt powered subwoofer. It's got a real wood veneer finish, slot load venting for improved bass response, rock-solid MDF construction, big 12 inch long throw driver, 300 watt continuous (460 watt dynamic) power amplifier, and it's magnetically shielded. A lot of bass for the money. POLK AUDIO PSW505 BLACK 12" 300 WATT POWERED SUBWOOFER SALE