Alpine S2-W12D4 S2-Series Subwoofers Diamond Audio DMD Subwoofers An optional midrange speaker with

An optional midrange speaker with bandpass crossover is available to upgrade the two-way component systems into three-way systems for increased performance where a three way system is desired or fits into factory locations

Hide-away source amplifier (15A fuse)

Protection: Provides an additional layer of protection for your subwoofers against potential damage

Aluminum Dust Cap: Ensures durability and enhances performance

It walks the new user through the system operation on-screen while delivering tons of real-time information for the power user

Alpine S2-W12D4 S2-Series Subwoofers Diamond Audio DMD Subwoofers An optional midrange speaker withAlpine S2 W12D4 S2 Series Subwoofers Boost your audio system with the Alpine S2 W12D4 12" subwoofer. Engineered for high performance, it features dual 4 ohm voice coils, a carbon fiber polypropylene cone, and a HAMR rubber surround. The subwoofer delivers a frequency response range of 23 215 Hz, handles 600 watts RMS (300 watts per coil) with a peak power handling of 1,800 watts, and has a sensitivity of 85. 7 dB. It requires a top mount depth of 5.