Sundown Audio U Series V.2 6.5" Subwoofer Dual Voice Coil 2/4 Ohm 800W Peak | eBay
Amazon.com: Gravity 2X 6.5 Inch 600 Watt Car Audio Subwoofer w/ 4 Ohm DVC 6.5" Sub Pair - Feature Dual Voice Coil, Thick Magnet, Design for Car, ATV, Van, High Performance Car Show : Electronics
Best Buy: JBL 10" Dual-Voice-Coil 6-Ohm Subwoofer w10GTiMKII
6.5 Inch 50W at 4 Ohm High Performance 2 Way Speaker with Crossover Dual Voice Coil and Dual Tweeter - China Dual Voice Coil and Dual Tweeter and Smart Home Ceiling Speaker
Epique E150HE-44 5-1/2" DVC MMAG Extended Range Subwoofer 4 Ohm per Coil
BOLD6 AMPIRE Dual Voice Coil Subwoofer 6,5"
Rockville W65K9D4 6.5" 1000w Car Audio Subwoofer Dual 4-Ohm Sub CEA Compliant
Amazon.com: Skar Audio EVL-65 D4 6.5" 400 Watt Max Power Dual 4 Ohm Car Subwoofer : Electronics