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Amazon.com: Alpine SWT-12S4 1000 Watt 12" Car Audio Bass Tube Subwoofer Bundle with Amplifier and Amp Kit : Electronics
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Amazon.com: Alpine (2) S-W12D2 Car Audio Type S Series Sub 1200W Peak 12" Subwoofer Bundle with Harmony HA-A800.1 Amplifier & Amp Kit : Electronics
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