Alpine SWX-1243D Type-X 12" subwoofer with dual 4-ohm voice coils at Crutchfield
Sealed / Recessed Sub Box for (2 12") Alpine Type X Subs - Subwoofer Enclosure | eBay
Amazon.com: Alpine Bundle Compatible with Universal Car X-W12D4 Type X 12" Loaded SPL Bass Subwoofer Labyrinth Vent Sub Box Stereo Enclosure : Electronics
Alpine 12” Type X-Series Ported Bass Package Includes one Alpine X-W12D4 12” subwoofer, and 2.00 ft³ optimized ported enclosure
Two 12” Alpine Type X Subwoofers with professional built custom box - Subwoofers & Enclosures - Longmont, Colorado | Facebook Marketplace | Facebook
Alpine SWX-1243D Type-X 12" Subwoofer - Signature Car Sound
Alpine SWX-1243D Type-X 12" Subwoofer - Signature Car Sound
Alpine Type X 12“ inch Subwoofer with Super Bass ProBox Enclosure for Sale in Denton, TX - OfferUp
Custom Ported Sub Box Enclosure for 1 12" Alpine Type X Subwoofer ~ X-Series | eBay
LAB SlapBox™ 2.00 ft^3 Ported MDF Enclosure Box for Single Alpine 12" X-