Alpine S-W12D4 S-Series 12″ Dual 4 Ohm Subwoofer Headrest DVD Players an external aesthetic which compliments

an external aesthetic which compliments its elegant internal componentry

The D is a result of Pioneer’s automotive loudspeaker engineering experience and expertise

DP2-Series is taking sound quality performance to the next level

Frame Material: High Strength Steel Frame

Alpine S-W12D4 S-Series 12″ Dual 4 Ohm Subwoofer Headrest DVD Players an external aesthetic which complimentsAlpine S W12D4 S Series 12 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