NVX 15-inch True 1000 watt RMS 2000 watt Peak Professional Grade Dual 4-Ohm Car Subwoofer 3-Dimensional Die Cast Aluminum Basket [VCW154] Power Handling: 1000 Watts RMS - 2000 Watts Peak 3-Dimensional Die Cast Aluminum Basket designed not to interfere with the magnetic energy of the voice coil Woven Fiber Pressed paper cone help reproduce tight and accurate bass with minimal cone distortion Custom High-Roll Foam surround gives the subwoofer improved linearity and more output 3.0" high temperature aluminum voice coil helps with heat dissipation and allows to play the sub louder without distortion