Amazon.com: Savard Speakers HiQ Series 6.5" inch Dual 2 Ohm Subwoofer : Electronics
Amazon.com: Sound Town 12" Dual Voice Coil 1000W Car Audio Subwoofer, Dual 2 -Ohm, CEA Rated (ARES-12D2) : Everything Else
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: Pair of E-15 V.3 D2 - Sundown Audio 15" 500W RMS Dual 2-Ohm EV.3 Series Subwoofers : Electronics
Amazon.com: Skar Audio EVL-12 D2 12" 2500 Watt Max Power Dual 2 Ohm Car Subwoofer : Electronics
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
Amazon.com: Alpine S-W12D2 Car Audio Type S Dual 2 Ohm 1200 Watt 12" Subwoofers with Sub Install Kit Package : 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: KICKER 43TCWRT122-RS CompR 12" Series Sub 500W RMS 2 Ohm Thin Profile Loaded Subwoofer Enclosure : Electronics