Product Description: UltraLinear "D4" 12" Subwoofer 1200 Watts Max *NEW ITEM* Details: ·Dual 4 Ohm Voice Coil ·Triple Stacked Magnet ·Die Cast Basket ·12"High Performance Subwoofer ·600W RMS ·1200W MAX ·Butyl Rubber Surround ·Sensitivity: 87 dB @ 1w/1m ·Frequency Response: 25 Hz - 3 kHz