Amazon.com: CT Sounds STRATO-10-D2 2500 Watts Max 10 Inch Car Subwoofer Dual 2 Ohm
Pioneer Premier TS-W5102SPL SPL Champion Series 12" sub with dual 2-ohm voice coils at Crutchfield
Amazon.com: Pioneer TS-A300D4 12 Inch 1500 Watts Max Power Dual 4-Ohm Voice Coil A Series Car Audio Stereo Subwoofer Loudspeakers / Free Alphasonik Earbuds : Electronics
TS-W2502SPL - Premier® 12" SPL Component Subwoofer with 2500 Watts Max. Power | Pioneer Electronics USA
DDX-12 | 12" 1,500 Watt Max Power Car Subwoofer - Skar Audio