The Polk 10" 100 Watt Powered Subwoofer is perfect for excellent audio. With optimal sound settings the PSW enclosures are perfect. With an intelligent amplifier, you can enjoy some audio as loudly as desired. With accessibility build in, the Polk 10" 100 Watt Powered Subwoofer is easy to use. The Polk 10" 100 Watt Powered Subwoofer has smart circuitry that automatically controls the lights.