Frisby 1000 Watt 3 Pc Amplified Subwoofer Computer Mp3 Cd Laptop Speakers Features 1000 Watt Powerful 2.1, Amplified Subwoofer System Compact and stylish, Frisby BS-S810 gives you high-quality audio performance Its wood subwoofer with built-in port tube and 4" driver deliver rich, deep bass Back panel power, and front panel master volume control Sturdy subwoofer with port tube produces deep pounding bass provided by 1000 Watt Peak Power and 20 Watt RMS power