8"" High Quality Polypropylene Cone - Frequency Response: 35-3.5K Hz * Water Resistant Construction Design - 4 Ohm Impedance * 40 oz Magnet Structure - Sensitivity: 91 dB * 1.5"" High Temperature Voice Coil - Overall Diameter: 8.5"" * 400 Watts Peak Power - Mounting Depth: 3.60"" * 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"" * Sold as : Unit