ALPINE R-Series 12 Dual 4 Ohm Dvc Subwoofer - R2-W12D4
ALPINE R-Series 12 Dual 2 Ohm Dvc Subwoofer - R2-W12D2
ALPINE R-Series 10 Dual Gap Voice Coil 2250W Subwoofer (4 Ohm) - R2-W10D4
ALPINE R-Series 10 Dual 2 Ohm Dvc 2250W Subwoofer - R2-W10D2
ALPINE 8" Quad-Coil Subwoofer System - PWE-S8
ALPINE R-Series 8" Dual Voice Coil Subwoofer - R2-W8D4
