Kicker 48CWR124 CompR Series 12" subwoofer with dual 4-ohm voice coils

Product Details: 12" Dual 4 ohms CompR/CWR Series Subwoofer Power Handling: Peak: 1000 watts RMS: 500 watts Polypropylene Cone Santoprene Rubber Surround Single integrated unit that both cools the motor and eliminates distortion>/li> Forced Air Cooling to help our subs run 25% cooler than before High Temperature Voice coil Double Stacked Ferrite magnet motor structure Frequency Response: 25 - 500 Hz Resonance Frequency (Fs): 30.8 Hz Sensitivity: 86.9 dB Sealed box volume: 1.0 cubic feet Ported box volume: 1.75 cubic feet Top-mount depth: 5-3/4" Cutout diameter: 11"