Alpine SWR-1242D Type-R 12" subwoofer with dual 4-ohm voice coils at Crutchfield
Alpine X-W12D4 X-Series 12" subwoofer with dual 4-ohm voice coils at Crutchfield
Alpine - R2-W12D4 Next-Generation 12-inch (30cm) R-Series Subwoofer with Dual 4-Ohm Voice Coils
 Alpine Type X Subs - Subwoofer Enclosure | eBay")
Sealed / Recessed Sub Box for (2 12") Alpine Type X Subs - Subwoofer Enclosure | eBay
User manual Alpine X-W12D4 (English - 13 pages)
Alpine Type X 12“ inch Subwoofer with Super Bass ProBox Enclosure for Sale in Denton, TX - OfferUp
2 Alpine Type X 12 JL 1000/1 Silly Slappin!!!! - YouTube
Amazon.com: Alpine X-W12D4 12" Component Subwoofer : Electronics
Alpine Type-X SWX-1242D 12" subwoofer with dual 4-ohm voice coils at Crutchfield
Alpine SWX-1243D Type-X 12" subwoofer with dual 4-ohm voice coils at Crutchfield
Amazon.com: Alpine ALP19-R-W12D4 Car Audio Type R Series Sub Dual 4 Ohm 1500W Peak 12" Subwoofer : Electronics
Alpine Type X 12 subwoofer VS wallsocket 120 volts - YouTube
R-W12 Alpine Type R 12 Inch 2250 Watt Max 4 Ohm Round Car Audio Subwoofer %7C R%2DW12D4
Single alpine type r 12" ripping car apart - YouTube
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 SWR-1242D (SWR1242D) 12" Dual 4 ohm Type-R Car Subwoofer
Disassembly of an Alpine Type-X SWX-1243D (will post more as I get deeper) : r/CarAV
2) Alpine Type-R R2-W12D2 12" 750w Subwoofers+Vented Box+Mono Amplifier+Amp Kit - Walmart.com
Alpine SWR-1222D Type-R 12" subwoofer with dual 2-ohm voice coils at Crutchfield
Alpine SWX-1243D at Onlinecarstereo.com
![2 Alpine Type-R R2-W12D2 12" Subwoofers + Qpower QBOMB12VL 12" Dual vented Box 793276084668 | eBay](https://i.ebayimg.com/images/g/OnAAAOSwj3VkTFAh/s-l1600.jpg "2 Alpine Type-R R2-W12D2 12" Subwoofers + Qpower QBOMB12VL 12" Dual vented Box 793276084668 | eBay")
2 Alpine Type-R R2-W12D2 12" Subwoofers + Qpower QBOMB12VL 12" Dual vented Box 793276084668 | eBay
![Custom Alpine Type X 12" SWX-1243D Subwoofer System, Qty 2 (4 speakers) | eBay](https://i.ebayimg.com/images/g/X~oAAOSwiStdA52I/s-l1600.jpg "Custom Alpine Type X 12" SWX-1243D Subwoofer System, Qty 2 (4 speakers) | eBay")
Custom Alpine Type X 12" SWX-1243D Subwoofer System, Qty 2 (4 speakers) | eBay
Alpine SWX-1243D 12" Type-X 3000W Dual 4 ohm Car Subwoofer
Alpine W12S4 12" 250 Watt 4 OHM Subwoofers with GTR-601 Mono Subwoofer Amplifier 600 watts RMS x 1 at 2 ohms - Creative Audio
