Alpine S-W10D4 S-Series 10″ Dual 4 Ohm Subwoofer Sound Deadening Together with the protective film

Together with the protective film which minimizes reflection and glare from sunlight

whether it's powered with a factory radio or an aftermarket amplifier

and expandability

you can enjoy wireless navigation with Google Maps

This ISU165 2-way separate kit is the result of research into the constraints associated with using original-fit locations

Alpine S-W10D4 S-Series 10″ Dual 4 Ohm Subwoofer Sound Deadening Together with the protective filmAlpine S W10D4 S Series 10 Dual 4 Ohm Subwoofer Alpine introduces the all new S Series Subwoofers, their unique design substantially improves bass output and provides installation versatility. Available in a twelve, ten and eight inch each S Series subwoofer uses a custom stamped steel frame. These high strength frames were designed to withstand the rigors of the improved S Series motor. They have frame leg vents as well as a vented back plate to help