Alpine Type X 12. Alpine Type X 12 Recone Kit Endaily Less power hungry than an SI SQL12, and works with 2ohm stable amps unlike the Dayton Audio HE subs. The X-W12D4 12" subwoofer handles up to 900 watts RMS, so don't hesitate to give it plenty of juice
Alpine SWX 1243D Type X 12 subwoofer How to wire the dual voice coils from www.youtube.com
The speaker is made from high-quality materials and is designed to withstand the rigors of daily use Specs: * 12" Dual 4 Ohms Dual Type-X Series Subwoofer * Power Ratings: o 3000 watts Peak o 1000 watts RMS * Impedance: Dual 4 ohms * Kevlar-Rohacell® Woofer Composition * Injection Molded Santoprene® Surround * Dual 3.1" 6-Layer Dual 4 Ohms Voice Coil with Inner/Outer Winding
Alpine SWX 1243D Type X 12 subwoofer How to wire the dual voice coils
Went to 13H since the cutout is 10.9 and 1.5 is the thickness of the top and botton panels it gets rather tight at 12.5 Alpine ID Sound Quality 900W RMS, making it a perfect match for the X-Series X-A90M 900W mono amplifier 24mm linear Xmax (1 way), 48 mm peak to peak Dual spiders for precision control over the large dynamic range Dual shorting rings for strong motor control ensuring low THD and tight bass Center pole radial heat sink which wicks heat away from the voice coil and transfers it outside the motor. The SWX-1242D 12" subwoofer provides full bass by squeezing every last millimeter of excursion from the carbon fiber/aluminum honeycomb cone, thanks to its high-roll Santoprene rubber surround
Alpine 12" TYPE X CAR SUBWOOFER SWX1243D LIKE NEW Photo 824823 US. Experience superior sound quality with the Alpine Type X 12" SWX-1243D Subwoofer Speaker Alpine X-W12D4 12" Component Subwoofer https://a.co/d/eOqXjb4 These are $389 on Amazon, but over $650 at crutchfield
Alpine Type X 12 SWX1242D DVC Subwoofer for PARTS/REPAIR 1000 Watts eBay. They're a high excursion 4ohm dvc SQL type sub that has gotten some rave reviews in old threads here L Port Internal Assembly Parts: Front to Back = 12 x 11 1/2