Alpine Dual 10” Type-R Thin Sealed Bass Package Includes two Alpine SWR-T10 10” thin subwoofers, and sealed enclosures
Amazon.com: Alpine R-W10D4 Car Audio Type R Dual 4 Ohm 1500 Watt 10" Subwoofers with Sub Install Kit Package : Electronics
Alpine® Type R 10" Black Car Subwoofer | Innovative Concepts Audio Video | 260-724-2276
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