Alpine Jeep Wrangler Single 12-Inch Alpine Halo R-Series Preloaded Subwoofer Enclosure with ProLink R2-SB12V (Universal; Some Adaptation May Be Required) - Free Shipping
Alpine Car Audio SWE-1243E 800 Watts 4 ohm voice coil subwoofer - SWE-1243E from Alpine Car Audio
Amazon.com: Alpine SWR-8D4 8" Car Subwoofer : Electronics
Alpine - SBG-30KIT 12" (30cm) High Performance Subwoofer Package
Alpine R-Series 12" Single-Voice-Coil 2+2-Ohm Subwoofer Black R-W12D2 - Best Buy
BOSS Audio Systems CXX104DVC Chaos Extreme Series 10 Inch Car Audio Subwoofer - 1000 Watts Max, Dual 4 Ohm Voice Coil, Sold Individually, For Truck Boxes and Enclosures, Hook Up To Amplifier