KiloX104 - 10" 1000w Dual 4 Ohm Kilox Series Subwoofer by Massive Audio® - SSA STORE
Massive Audio Hippoxl122 4000 Watt 12 Inch 2 Ohm Hippo Series Car Subwoofer Sub for sale online | eBay
Best Buy: Massive Audio Massive MMA Series 12-Inch 500-Watt-RMS Dual 4-Ohm Subwoofer Black Black MMA 124
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 GTX64 6-inch Subwoofer with a Dual 4 ohm Voice Coil
BOA181 - 18 inch Subwoofer 6,000 Watts RMS Dual 1 Ohm Mega Subwoofer – Massive Audio