Universal Car Stereo Slotted S Port Single 10" Alpine Bundle Type R R-W10D4 Sub Box Enclosure with Harmony HA-A800.1 Amplifier & 4GA Amp Kit - Walmart.com
Alpine SWR-1042D Type R10” Subwoofer with Dual 4-ohm Voice Coils (Used). | eBay
Alpine SWR-10D4 specifications
Alpine SWR-1041D 10" subwoofer with dual 4-ohm voice coils at Crutchfield