Add bass to your home entertainment experience with the Sony SA-CS9 115W 10-inch Active Subwoofer. Its 10" woofer is powered by a 115W amplifier. With a frequency response of 28 to 200 Hz, the SA-CS9 is equipped to handle a wide variety of listening material. Its controls include a phase switch, level adjustment, cut-off frequency adjust, and a power save mode. For installation flexibility, speaker and line level inputs are onboard. The woofer includes a 6.5' phono cord and four foot pads. Listening to music was as enjoyable as ever, and watching movies in a home theater set-up reproducing explosions, gunfire, and more with ease. The Sony SA-CS9 115W 10-inch Active Subwoofer is a fantastic subwoofer at the price. Sony’s expertly designed 10-inch foamed-mica cellular reinforced woofer is tight and dynamic, producing monstrous sound while still blending in with almost any system.