Alpine 10 Inch Type-R Subwoofer (R-W10D2) | SK Customs Car Audio & Home Theater | Atlanta | Norcross | Duluth | John's Creek
Alpine SWR-1042D Type R10” Subwoofer with Dual 4-ohm Voice Coils (Used). | eBay
Alpine - SWR-1542D Subwoofer van 15" (38cm) (4Ohm+4Ohm)
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