Car Subwoofer by GTX124R - Woofer with Amazing Sound for Truck, Cars - 12 Inch Car Audio 2,000 Watt GTX Series Dual 4 Ohm, 3 Inch Voice Coil. Sold Individually - Newegg.com
Massive Audio GTX104- 1400w Dual 4 Ohm Subwoofer
Amazon.com: Massive Audio GTX64 – 6.5 Inch Car Audio Subwoofer, High Performance Subwoofer for Cars, Trucks, Jeeps - 6.5" Subwoofer 250 Watt RMS, 500w MAX Dual 4 Ohm, 1.5 Inch Voice Coil. Sold Individually : Electronics
Massive Audio GTX Series GTX122 12" 1400 Watt Dual 2 Ohm Subwoofer | Big Jeff Online Inc