Pioneer Sealed 12 in. 1300-Watt Active Subwoofer with Built-in Amp TS-WX1210A - The Home Depot
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Pioneer TS-W301R 12" 4-ohm subwoofer at Crutchfield
Crunch 12 Inch 800 Watt Max 4 Ohm Dual Voice Coil Car Subwoofer Speaker (2 Pack) With 4 Channel 1000 Watt Amp A/b Class Car Stereo Power Amplifier : Target
Amazon.com: Pioneer TSW312D4 Champion Series 12" 1500 Watt Dual 4 Ohm Voice Coil DVC Car Subwoofer : Electronics
Crunch 12 800 W 4 Ohm Car Subwoofer Speaker (2 Pack) w/ Audio Stereo Amplifier, 1 Piece - Ralphs
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Pioneer TS-W3003D4 12 inch 600W Car Subwoofer for sale online | eBay