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Universal Car Stereo Slotted S Port Single 10" Alpine Bundle Type R R-W10D4 Sub Box Enclosure with Harmony HA-A800.1 Amplifier & 4GA Amp Kit - Walmart.com
Alpine 8" Powered Subwoofer System Black PWE-S8 - Best Buy
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2) Alpine Type-R R2-W12D4 12" 750w RMS Car Subwoofers+Vented Sub Box Enclosure - Walmart.com
Amazon.com: Alpine SWT-12S4 1000 Watt 12" Car Audio Bass Tube Subwoofer Bundle with Amplifier and Amp Kit : Electronics
2) ALPINE SWR-1542D 4000W 15" CAR AUDIO SUBWOOFERS TYPE R WITH 4-OHM DVC SUBS | eBay
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