Clarion PXW1252 12-Inch Dual 4 Ohm Voice Coil Subwoofer (Discontinued by Manufacturer) Peak Power (Maximum): 1000 Watts of Maximum Music Power RMS (Continuous) Power: 500 Watts RMS Dual 4-Ohm Heat Resistant Voice Coils Polypropylene Electrolytic Spun Aluminum Coated Dust Cap Design Kevlar/Paper Composite Cone Design