B&C 8FG51 Studio Subwoofer

"B AND C 8.0-in Woofer w/8 Ohms Impedance & 500 Watts Continuous Power Handling Capacity & Ferrite Magnet - 8FG51 8.0-in Woofer w/8 Ohms Impedance & 500 Watts Continuous Power Handling Capacity & Ferrite Magnet * Nominal Outer Diameter - mm (in): 200 (8.0) * Continuous Power Handing Capacity: 500 * Nominal power handling: 250 Watts * Frequency Response: 50 - 4000 Hz * Sensitivity (1W/1m): 93.0 dB * Nominal impedance: 8 Ohms * Minimum impedance: 6.5 Ohms * Winding material: Copper * Winding depth - mm (in): 17.0 (0.65) * Voice Coil Diameter - mm (in): 51 (2.0) * Cone Shape: Exponential * Surround Shape: Roll * Former Material: Glass Fibre * Magnetic gap depth - mm (in): 8.0 (0.31) * Flux Density - T: 1.15 * Spider type: Single * Pole Design: T-Pole Recommended Enclosure: 17.0 (0.6) Recommended Tuning in Hz: 52"