What's in the box: 15-inch Subwoofer Owner's Manual Two Stickers Description: The KICKER® CompVX™ features cutting-edge technology for truly musical, distortion-free bass. 15" CompVX 2 Ohm High-temp dual voice coils deliver the power, while a solid pole piece provides more mass to subdue additional heat. A T-cut top plate creates a wider magnetic field for stronger bass response, and better sound. It all comes together to form a super-reliable motor structure found only in a KICKER subwoofer. Features: Dual Two-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 The CompVX 15-Inch Subwoofer works best with a sealed or ported enclosure and 1000 watts of recommended power Specifications: Thiele/Small Parameters: 50CVX152 Size (IN.,CM): 15, 38 Impedance (OHMS): 2 DVC Recommended Amplifier Power (watts RMS): 1000 Peak Power (watts, per ANSI/CTA-2031-A): 2000 Sensitivity (dB 1w/1m): 91.6 Frequency Response (Hz): 18-500 Mounting Depth (in, cm): 8-1/2, 21.5 Mounting Cutout (in, cm): 13-13/16, 35 Min Sealed Box Vol (cu. ft, L): 1.8, 51.0 Max Sealed Box Vol (cu. ft, L): 5.2, 147.0 Min Vented Box Vol (cu. ft, L): 3.0, 85.0 Max Vented Box Vol (cu. ft, L): 5.0, 142.0