Model: 50CVX154 The KICKER® CompVX™ features next-level materials and heat management technology for clear, pounding bass that lasts. The CompVX stands alone among round subwoofers, using technologies found in the Solo-Baric® L7S like the one-piece SoloKon™ cone with vented back bracing for ultra-rigidity and a cool motor. 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 Terminal *The CompVX 15-Inch Subwoofer works best with a sealed or ported enclosure and 1000 watts of recommended power.