Amazon.com: Massive Audio SUMMOXL124-12 Inch Car Audio Subwoofer, High Performance Subwoofer for Cars, Trucks, Jeeps - 12" Subwoofer 1500 Watt RMS, 3000w MAX Dual 4 Ohm, 3 Inch Voice Coil. Sold Individually : Electronics
Amazon.com: New Dual DLS12 12-Inch 875 Watts 4-Ohm Car Audio Power Subwoofer Sub DLS-12 : Electronics
Sundown Audio SA Classic 12" inch DVC Dual 4 Ohm (SA Series) Car Subwoofer 750 Watts
Amazon.com: H YANKA 12 Inch Subwoofer - 12 Inch Paper Cone Subwoofer Car Audio, Black Steel Basket, Dual Voice Coil 4 Ohm Impedance 12 subwoofer, 1600W MAX Power 12 inch Competition Subwoofer : Electronics
Pioneer 12" 1400 W Max Power, Single 4-ohm Voice Coil, IMPP™ cone, Rubber Surround Component Subwoofer BLUE TS-A123R - Best Buy