Bass Inferno BPW12D 12-Inch 2000-Watts 4-OHM DVC Subwoofer 2-Inch 4 Layer 4 Ohm DVC w/ Aluminum Former Stamped Heavy Gauge Steel Basket High Temperature EMT4 Aluminum Voice Coil Optimum Excursion Foam Surround CAD Optimized Electro Mechanical Magnet Housing