Alpine sub and amp pack X-W12D4 12′′ X-Series Subwoofer with Alpine XA90M A | Street Sound & Vision
Amazon.com: Alpine (2) S-W12D2 Car Audio Type S Series Sub 1200W Peak 12" Subwoofer Bundle with Harmony HA-A800.1 Amplifier & Amp Kit : Electronics
Alpine Bass Package MRP-M650 mono amplifier Two SWS-1222D 12" subwoofers Q-Logic subwoofer box at Crutchfield
Universal Car Stereo Hatchback Sealed Dual 10" Alpine Bundle Type S S-W10D2 Sub Box Enclosure with Harmony HA-A800.1 Amplifier & 4GA Amp Kit - Walmart.com
Alpine Subwoofer + Amplifier Package
Alpine KTA-200M Mono Power Pack Amp with Alpine W12S4 12" Subwoofer and Bass Knob - Creative Audio