Product Details: 12" Dual 4 ohm SQ Series Subwoofer. Power Handling: . Peak: 1200 watts. RMS: 600 watts. Polypropylene Cone. Rubber Surround. Custom Tooled Die-Cast Aluminum Basket. 1. 5" High Temperature Copper Voice coil. 16 mm Xmax. 115 oz. Single Stacked Ferrite magnet motor structure. Frequency Response: 20 - 500 Hz. Resonance Frequency (Fs): 26 Hz. Sensitivity: 84 dB. Recommended sealed box volume: . 80 cubic feet. Recommended ported box volume: . 90 cubic feet. Top-mount depth: 3. 51". Cutout diameter: 11. 26". CTA-2031 Compliant. Authorized Internet Dealer. Includes protective subwoofer grille. 1-year Manufacturer's Warranty. Priced Individually.