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Best Buy: Alpine Type-R 12" 1000W Subwoofer Black SWR-12D4
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Alpine 8" 1000W Subwoofer/Box + Planet Audio 1500W Car Amp + Car Amp Install Kit - Walmart.com
Amazon.com: Alpine 10 Inch 1000 Watt Loaded Ported Truck Subwoofer Enclosure Box | SBT-S10V : Electronics
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Best Buy: Alpine Type-R 12" 1000W Subwoofer Black SWR-12D4
Best Buy: Alpine 12" 1000W Passive Subwoofer Black SWR-12D2 | Passive subwoofer, Subwoofer, Car subwoofer
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Alpine - SBG-1224BR Ready to use Bass Reflex Subwoofer (2Ohm)
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Amazon.com: ALPINE SWT-12S4 1000w 12" Subwoofer in Bass Tube 4-Ohm Sub+Bluetooth Speaker : Electronics
