The Boston Acoustics ASW 650 650-Watt Peak 10-Inch Front-Firing Powered Subwoofer makes an ideal addition to home theater or music systems. Featuring a switched mode power supply for consistent performance, this powerful subwoofer is equipped with BassTrac technology to maximize bass output while avoiding overload and distortion. The woofer's ceramic/glass fiber polymer construction delivers more bass response from less amplifier power.