Kicker 50CVX124 CompVX 12-Inch Subwoofer, Dual 4-Ohm

12" CompVX 4 Ohm A cast aluminum with motor-cooling perimeter venting and spring-loaded terminals that can accept up to 10-gauge wire, so when you run hundreds of watts to this sub, it gives you loud, distortion-free bass. Features: Dual Four-Ohm Voice Coils Thick Polypropylene Cone Signature Double Blue Surround Stitching Ribbed Santoprene® Surround SoloKon™ Cone Reinforcement Oversized Suspension System High-Strength Insulated Tinsel Leads High Temp Voice Coil Perimeter Venting for Thermal Management Massive Ceramic Magnet UniPlate™ Extended Pole Piece & Backplate For Superior Heat Dissipation Cast Aluminum Basket Satin Nickel Spring-Loaded Speaker Terminals Specifications: Size (IN.,CM): 12, 30 Impedance (OHMS): 4 DVC Recommended Amplifier Power (watts RMS): 750 Peak Power (watts, per ANSI/CTA-2031-A): 1500 Sensitivity (dB 1w/1m): 87.1 Frequency Response (Hz): 20-500 Mounting Depth (in, cm): 6-11/16, 16.9 Mounting Cutout (in, cm): 11-1/16, 28 Min Sealed Box Vol (cu. ft, L): 1.0, 28.3 Max Sealed Box Vol (cu. ft, L): 4.6, 130 Min Vented Box Vol (cu. ft, L): 1.75, 49.6 Max Vented Box Vol (cu. ft, L): 2.25, 63.7 What's in the box?: One 12-inch subwoofer, one owner's manual, two stickers