Pyle Model : PLMRW8 8'' Marine Subwoofer, 800 Watt Single 8" 400 Watt White 4 Ohm Marine Subwoofer 8'' High Quality Polypropylene Cone Water Resistant Construction Design 40 oz Magnet Structure 1.5'' High Temperature Voice Coil 400 Watts Peak Power Frequency Response: 35-3.5K Hz 4 Ohm Impedance Sensitivity: 91 dB Overall Diameter: 8.5'' Mounting Depth: 3.60'' This 400-watt Pyle Hydra subwoofer will blow you out of the water! It's constructed from water resistant plastic, supporting a 8' high quality polypropylene cone. The 40 oz. magnet structure and 1.5' high temperature voice coil boom with power and achieve a frequency response of 35 Hz to 3.5 kHz.