75 Series 12" 4Ω Dual Voice Coil Subwoofer | MTX Audio - Serious About Sound®
BOSS Audio Systems CH10DVC Chaos Series 10 Inch Car Audio Subwoofer - 1500 Watts Max, Dual 4 Ohm Voice Coil, Sold Individually, For Truck, Boxes and Enclosures, Use With Amplifier
Nemesis Audio ( T )series 8" subwoofer 1500 watts Rms 3000 max 3" Black coil | eBay
MESO-12 - 3000 Watt 12 Inch Car Subwoofer - CT Sounds – CT SOUNDS