Massive Audio HIPPOXL64 – 6 Inch Car Audio Subwoofer, High Performance Subwoofer for Cars, Trucks, Jeeps - 6 Subwoofer 300 Watt RMS, 600w MAX Dual 4

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HIPPOXL122 - 12 inch Subwoofer 2000 Watts RMS Dual 2 Ohm 3 V.C. Mega

Massive Audio HIPPOXL64 – 6 Inch Car Audio Subwoofer, High Performance Subwoofer for Cars, Trucks, Jeeps - 6 Subwoofer 300 Watt RMS, 600w MAX Dual 4 Ohm, 2 Inch Voice Coil. Sold

Massive Audio HippoXL64 (Pair) –

Massive Audio HIPPO XL 64 600W 6 Dual 4 Ohm Car Audio Subwoofer Car Sub Woofer

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HIPPOXL64 - Massive Audio Subwoofer - 6 300 Watts RMS Dual 4 Ohm Subwoofer

Massive Audio HippoXL64-6.5 Inch Car Audio 600 Watt Hippo Series Competition Subwoofer, Dual 4 Ohm, 2 Inch V.C

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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

Nemesis Audio NA-8M 8 700 W RMS Dual 4-Ohm Voice Coil DVC Car Stereo Subwoofer

Massive Audio HIPPO XL 64 600W 6 Dual 4 Ohm Car Audio Subwoofer Car Sub Woofer