10-Inch High Quality Polypropylene Cone - 60 Oz Magnet Structure - Sensitivity: 89 dB.Butyl Rubber Surround - 800 Watts Rated Peak Power - Includes Custom Grills, Installation Hardware.Water-Resistant Construction - Frequency Response: 38 - Mounting Depth: 4.44-Inch (113 mm).Attachable Grille Design - 3.5K Hz - Cut-out Size: 8.77-Inch (223 mm).2-Inch High Temperature Kapton Voice Coil - 4 Ohm Impedance - Sold as : Piece This 10-Inch marine subwoofer from Lanzar will really rock the boat! Featuring a 60 oz. magnet structure supporting a 10-Inch high-quality polypropylene cone, this subwoofer is capable of pumping out up to 800 watts of powerful bass. Plus, this subwoofer is constructed to be water-resistant and features an attachable grille design to keep safe from the elements at sea. 4 ohm impedance. Frequency response: 38 Hz to 3.5 kHz. Includes custom grills and installation hardware.