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Alpine 12” Type X-Series Ported Bass Package Includes one Alpine X-W12D4 12” subwoofer, and 2.00 ft³ optimized ported enclosure
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US ALPINE SWX-1242D Type-X Series 12 Ω DRIVE '05 Model Unused Enclosure BOX Set | Sub Woofer with BOX | Croooober
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Amazon.com: Alpine Bundle Compatible with Universal Car X-W12D4 Type X 12" Loaded SPL Bass Subwoofer Labyrinth Vent Sub Box Stereo Enclosure : Electronics
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