DS18 EXL-XXB12.2D 12 Inch Subwoofer 4000 Watts Max Dual 2 Ohm Competition - Walmart.com
Amazon.com: Gravity 1x 12 Inch 2000 Watt Car Audio Subwoofer w/ 2 Ohm DVC Power 12 in. Sub - Feature Dual Voice Coil, Thick Magnet, Design for Car, ATV, Van, High Performance Car Show : Electronics