Amazon.com: Cadence 12 Inch Car Subwoofer, High Performance 1600 Watts Dual 2 Ohm 2.5 Inch Black Aluminum 4 Layer Voice Coil, Beast Series Car Audio Woofer BT12D2, Single : Electronics
Amazon.com: Savard Speakers HiQ Series 6.5" inch Dual 2 Ohm Subwoofer : Electronics
Amazon.com: 1x Gravity 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
Amazon.com: NVX VCW102 10-inch True 750 watt RMS Dual 2-Ohm Car Subwoofer [ VC Series ] 3-Dimensional Die Cast Aluminum Basket : Electronics
Amazon.com: Massive Audio GTX122 – 12 Inch Car Audio Subwoofer, High Performance Subwoofer for Cars, Trucks, Jeeps - 12" Subwoofer 700 Watt RMS, 1400w MAX Dual 2 Ohm, 2.5 Inch Voice Coil. Sold Individually : Electronics
Amazon.com: Rockville W15K6D2 V2 15" 4000w Peak Car Audio Subwoofer Dual 2-Ohm Sub 1000w RMS CEA Rated : Electronics
Amazon.com: Skar Audio SDR-12 D2 12" 1200 Watt Max Power Dual 2 Ohm Car Subwoofer : Electronics
Amazon.com: Massive Audio GTX104 – 10 Inch Car Audio Subwoofer, High Performance Subwoofer for Cars, Trucks, Jeeps - 10" Subwoofer 700 Watt RMS, 1400w MAX Dual 2 Ohm, 2.5 Inch Voice Coil. Sold Individually : Electronics
Amazon.com: Skar Audio EVL-12 D2 12" 2500 Watt Max Power Dual 2 Ohm Car Subwoofer : Electronics