Amazon.com: Massive Audio HIPPOXL124 – 12 Inch Car Audio Subwoofer, High Performance Subwoofer for Cars, Trucks, Jeeps - 12" Subwoofer 2000 Watt RMS, 4000w MAX Dual 4 Ohm, 3 Inch Voice Coil. Sold Individually : Electronics
Massive Audio SummoXL 124 12" 12 inch Car Audio Subwoofer SVC 4Ohm 3000W | eBay
Amazon.com: Massive Audio KILOX124-12 Inch Car Audio Subwoofer, High Performance Subwoofer for Cars, Trucks, Jeeps - 12" Subwoofer 1000 Watt RMS, 2000w MAX Dual 2 Ohm, 3 Inch Voice Coil. Sold Individually : Electronics
MASSIVE AUDIO GTX 124 12" 700W RMS DUAL VOICE COIL DVC 4-OHM CAR SUBWOOFER NEW – LifeAfterBass
Massive Audio GTX 104 at Onlinecarstereo.com
2x Massive Car Audio 12 Mega Neodymium Subwoofers 24000W Dual 1 Ohm VC BOA121-N | eBay