Amazon.com: Car Vehicle Subwoofer Audio Speaker - 15 Inch Competition Grade Pressed Paper Cone, 2 Ohm DVC, Advanced Air Flow, 3500W Power for Stereo Sound System - Gravity Warzone GW15D2 (1 Subwoofer) : Electronics
Amazon.com: Skar Audio VXF-12 D2 12" 3000 Watt Max Power Dual 2 Ohm Competition Car Subwoofer : Electronics
Amazon.com: DS18 PRO-BX18N.2 Car Subwoofer Audio Speaker - 18" in Neodymium Magnet, 6" Voice Coil, 2 Ohm Impedance, 2500W Rms Power, 5000W Max Power - Reinforced Paper Cone for Outstanding Performance : Electronics
Amazon.com: DS18 HOOL-X15.2DSPL Hooligan X 15 Inch SPL Car Audio Subwoofer 4000 Watts Rms 4" Dual Voice Coil 2-Ohm DVC 2+2 Ohm (1 Speaker) : Electronics
Amazon.com: Skar Audio IX-12 D2 12" 500 Watt Max Power Dual 2 Ohm Car Subwoofer : Electronics
Amazon.com: 10 Inch Car Subwoofer Speaker - 500 Watt High Powered Car Audio Sound Component Speaker System w/ 2 Inch High-Temperature Kapton Voice Coil, 85.6 dB, 8 Ohm, 60 oz Magnet - Pyramid PW1048USX : Electronics
Amazon.com: Rockville VS10K52 10" K5 1200w Car Subwoofer in Vented Sub Enclosure Box - 2 Ohm : Everything Else
Amazon.com: CT Sounds MESO-10-D2 3000 Watt Max 10 Inch Car Subwoofer Dual 2 Ohm : Everything Else
Amazon.com: AudioPipe TXX-BDC4-15D 15 Inch 2,800 Watt High Performance Powerful Dual 2 Ohm DVC Vehicle Car Audio Subwoofer Speaker System, Black : Electronics
Amazon.com: AudioPipe TXX-BDC4-15D2 15 Inch 2,800 Watt High Performance Powerful Dual 2 Ohm DVC Vehicle Car Audio Subwoofer Speaker System, Black (2 Pack) : Electronics
Amazon.com: Alpine ALP19-R-W12D2x2wKit Car Audio Type R Dual 2 Ohm 1500 Watt 12" Subwoofers with Sub Install Kit and HA-SWKD Dual Sub Box Install Kit - 16 Screws and Speaker Wire with
Amazon.com: 1x Gravity 10 Inch 1500 Watt Car Audio Subwoofer w/ 2 Ohm DVC Power 10 in. Sub - Feature Dual Voice Coil, Thick Magnet, Design for Car, ATV, Van, High Performance Car Show : Electronics
Amazon.com: Massive Audio HIPPOXL122R – 12 Inch Car Audio Subwoofer, High Performance Subwoofer for Cars, Trucks, Jeeps - 12" Subwoofer 3000 Watt RMS, 6000w MAX Dual 2 Ohm, 4 Inch Voice Coil. Sold Individually : Electronics
Amazon.com: Pyle 6.5 Inch Mid Bass Woofer Sound Speaker System - Pro Loud Range Audio 300 Watt Peak Power w/ 4 Ohm Impedance and 60-20KHz Frequency Response for Car Component Stereo PLG64 : Electronics