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: (2) Skar Audio Sdr-10 D2 10" 1200W Max Power Dual 2 Ohm Car Subwoofers, Pair of 2 : Electronics
Amazon.com: Rockville W12K6D2 V2 12" 2400w Peak Car Audio Subwoofer Dual 2-Ohm Sub 600w RMS CEA Rated : Electronics
Amazon.com: Skar Audio EVL-12 D2 12" 2500 Watt Max Power Dual 2 Ohm Car Subwoofer : Electronics
Amazon.com: Rockville W15K6D2 V2 15" 4000w Peak Car Audio Subwoofer Dual 2-Ohm Sub 1000w RMS CEA Rated : Electronics
Amazon.com: Savard Speakers HiQ Series 6.5" inch Dual 2 Ohm Subwoofer : Electronics
Amazon.com: American Bass XFL1522 15 SUBWOOFER AMERICAN BASS DUAL 2 OHM VOICE COILS 200 OZ MAGNET : Electronics
Amazon.com: Sound Town 12" Dual Voice Coil 1000W Car Audio Subwoofer, Dual 2 -Ohm, CEA Rated (ARES-12D2) : Everything Else
Amazon.com: Car Vehicle Subwoofer Audio Speaker - 15 Inch Competition Grade Pressed Paper Cone, 2 Ohm DVC, Advanced Air Flow, 7000W Power for Stereo Sound System - Gravity Warzone GW15D2 (2 Subwoofers) : Electronics