Alpine S-W12D4 S-Series 12″ Dual 4 Ohm Subwoofer Headrest DVD Players ) - 85 x 32

) - 85 x 32 x 17 (3

96mm mid-range

Gain -24dB to 0dB)

13 Band EQ & Digital Time Alignment

Mounting Diameter: 51mm

Alpine S-W12D4 S-Series 12″ Dual 4 Ohm Subwoofer Headrest DVD Players ) - 85 x 32Alpine 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