Sony W3000 180W Powered 12" Subwoofer 180W of chest-thumping bass. The 12" Mica-reinforced cellular woofer will reach down to 20Hz with Motion Feed Back Technology. Complete your surround sound system with this 12" side firing subwoofer. Mint condition Hardly used New pice was $300 Selling for $100 It is an amazing subwoofer Specs 12" 180-Watt powered subwoofer Mica-reinforced cellular woofer construction Motion feedback technology Speaker and line level inputs 20-200Hz frequency response 12" 18-Watt powered subwoofer Mica-reinforced cellular woofer construction Motion feedback technology Speaker and line level inputs 2-2Hz frequency response