Pioneer TS-W260S4 10" 1,200-Watt Champion Series Component Subwoofer - Single 4 ohm voice coil
Pioneer TS-A301S4 | 500W RMS 12" Champion Series Subwoofer
Pioneer Electronics on Twitter: "The Champion Series Subwoofers feature an enclosed basket structure that is designed to support the steel basket by reducing the spread of vibration that causes bass loss frequency. #