8.0-in Woofer w/8 Ohms Impedance & 400 Watts Continuous Power Handling Capacity & Ferrite Magnet * Nominal Outer Diameter - mm (in): 200 (8.0) * Continuous Power Handing Capacity: 400 * Nominal power handling: 200 Watts * Frequency Response: 90 - 5000 Hz * Sensitivity (1W/1m): 98.0 dB * Nominal impedance: 8 Ohms * Minimum impedance: 7.2 Ohms * Winding material: Copper * Winding depth - mm (in): 9.0 (0.37) * Voice Coil Diameter - mm (in): 51 (2.0) * Cone Shape: Radial * Surround Shape: Triple Roll * Former Material: Kapton * Magnetic gap depth - mm (in): 8.0 (0.31) * Flux Density - T: 1.25 * Spider type: Single * Pole Design: Straight Pole