High-quality Polypropylene Cone</br>Water-resistant Construction</br>40oz Magnet Structure</br>8'' High Quality Polypropylene Cone - Frequency Response: 35-3.5K Hz</br>Water Resistant Construction Design - 4 Ohm Impedance</br>40 oz Magnet Structure - Sensitivity: 91 dB</br>1.5'' High Temperature Voice Coil - Overall Diameter: 8.5''</br>400 Watts Peak Power - Mounting Depth: 3.60''</br></br>Product Description</br></br>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.</br><br/>http://www.amazon.com/gp/product/B000MCKAHE