Fusion Signature Series 3, SG-S102W Classic White 10-inch Marine Subwoofer, a Garmin Brand (010-02435-00)Polypropylene cone technology produces defined, high resolution low frequency acoustics from the excellent self damping and bass reproduction Large diameter voice coil delivers an increase in real power and efficiency, providing an exclusive signature sound with wave rippling bass High grade plastic basket construction delivers unprecedented durability in the harsh marine environment Perforated metal grille for a timeless, elegantly styled finish to