Rockville RV12.2A 1200w Dual 12" Car Subwoofer Enclosure+Mono Amplifier+Amp Kit Rockville RV12.2A Dual 12" Bass Enclosure System With matching Mono Block Amplifier 1200 Watts Peak Power / 400 Watts RMS CEA-2031 Rating Dual 12" Bass Enclosure System with matching Mono Block Amplifier Quasi Transmission Line Cabinet Design Bonded, Stapled and Braced 3/5" MDF Cabinet