Amazon.com: H YANKA 10 Inch Subwoofer - 10 Inch Paper Cone Subwoofer Car Audio, Black Steel Basket, Dual Voice Coil 2 Ohm Impedance 10 subwoofer, 1200W MAX Power 10 inch Competition Subwoofer : Electronics
Amazon.com: Harmony Audio HA-ML152 Monolith 15" Car Stereo Competition SPL Sub 3200W Dual 2 Ohm Subwoofer : Electronics
Amazon.com: NVX VSW82v2 500 Watt (250W RMS) Space Saver 8" VS-Series Version 2 Dual 2-ohm Car Subwoofer (VSW 82 v2) : Electronics
Amazon.com: Skar Audio IX-8 D2 8" 300 Watt Max Power Dual 2 Ohm Car Subwoofer : 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: CT Sounds TROPO-12-D2 1300 Watts Max 12 Inch Car Subwoofer Dual 2 Ohm : Everything Else
Amazon.com: Rockville W15K6D2 V2 15" 4000w Peak Car Audio Subwoofer Dual 2-Ohm Sub 1000w RMS CEA Rated : Electronics
Amazon.com: Skar Audio IX-12 D2 12" 500 Watt Max Power Dual 2 Ohm Car Subwoofer : Electronics
Amazon.com: NVX VCW122v3 (VCW122 Version 3) 2400 Watt Peak (1200W RMS) 12" VC-Series v3 Dual 2-Ohm Car Subwoofer : Electronics
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