Alpine Dual 10” Type-R Thin Sealed Bass Package Includes two Alpine SWR-T10 10” thin subwoofers, and sealed enclosures
Amazon.com: Alpine R-W10D2 Car Audio Type R Series Sub Dual 2 Ohm 2250W Peak 10" Subwoofer and HA-SWKD Dual Subwoofer Sub Box Install Kit : Electronics