10" MX Series Infinite Baffle Marine Subwoofer Driver Power Handling: RMS: 175 watts Impedance: 4 ohm Injection-molded, mica-filled polypropylene cone woofer provides excellent durability Synthetic rubber surround for Very long linear excursion Specifically engineered Centrex polymer baskets for corrosion and UV-resistance Specifically optimized for infinite-baffle applications Proprietary Dynamic Motor Analysis (DMA) technology reduces distortion and improve sound quality White classic grille for superior woofer protection Gold-plated, brass binding posts terminals Sensitivity: 87.23 dB Xmax: 10.7 mm Mounting Depth: 5-1/8" Cutout Diameter: 8-7/8" Color: White w/ Classic Grille