JVC Mobile CS-GD1210 12" Dual Voice Coil Subwoofer Unit with 1400W Max Power Handling: * 1400W Peak/400W RMS Power * Dual voice coil * 3D Structure Sputtering Olefin diaphragm * Stampted steel frame * Butyl rubber surround * Super heat-resistant ABS gasket * Ferrite magnet * Silver-plated push 8AWG ready terminals * Frequency Range: 20-2000Hz * Sound Pressure Level: 86.5dB/W.m