Infinity PSW310W Active subwoofer 400W Black

400-Watt, WIRELESS Powered Subwoofer With 10" CMMD Driver, Dual 10" CMMD Passive Radiators The compact PSW310W wireless powered subwoofer features a 400-watt amplifier to deliver deep, powerful bass with dramatically reduced distortion. And Infinity® wireless subwoofer technology simplifies installation. There's no need to run a subwoofer cable around the room; simply connect the transmitter module to your AV receiver or processor, place the subwoofer where it works best in your room, and plug it in. Great bass made easy. We call that Bass Freedom!