Alpine MRV-M250 Compact Mono Car Amp, V-Power Digital Amplifier 250W RMS@2ohm 793276012425 | eBay
Alpine Jeep Gladiator Single 12-Inch Alpine Halo S-Series Preloaded Subwoofer Enclosure with ProLink S-SB12V (Universal; Some Adaptation May Be Required) - Free Shipping
Amazon.com: Alpine X-W10D4 Car Audio Type X Series Sub 1800W Peak 10" Subwoofer Bundle with Harmony HA-A800.1 Amplifier & Amp Kit : Electronics
Alpine R2-W10D2 R Series 10" subwoofer with dual 2-ohm voice coils at Crutchfield