B&C Speakers 12BG76-8 LF Drivers 12-inch ND Woofer 500 Watts Rms 1000 Watts Max 8 Ohms Impedance Pro Audio Component Speaker Driver for Motorcycle Car || HIGHLIGHTS 1000 W continuous program power capacity | 76 mm (3 in) copper voice coil | 45 - 1000 Hz response | 92 dB sensitivity | FEA optimized Neodymium magnet assembly | Aluminum demodulating ring for very low distortion | Double silicone spider with optimized compliance | Ventilated voice coil gap for reduced power compression | || SPECIFICATIONS : Nominal Diameter : 320 mm (12.0 in) | Nominal Impedance : 8 Ω | Minimum Impedance : 6.5 Ω | Nominal Power Handling1 : 500 W | Continuous power handling2 : 1000 W | Sensitivity (1W/1m)3 : 92.0 dB | Frequency Range : 45 - 1000 Hz | Voice Coil Diameter : 76 mm (3.0 in) | Winding Material : Copper | Former Material : Glass Fibre | Winding Depth : 25.0 mm (0.98 in) | Magnetic Gap Depth : 11.5 mm (0.45 in) | Flux Density : 1.25 T | || MOUNTING AND SHIPPING INFO || Overall Diameter : 315 mm (12.4 in) | Bolt Circle Diameter : 298 mm (11.73 in) | Baffle Cutout Diameter : 284.0 mm (11.18 in) | Depth : 159 mm (6.26 in) | Flange and Gasket Thickness : 14 mm (0.55 in) | Air Volume Occupied by Driver : 2.0 dm3 (0.07 ft3) | Net Weight : 5.0 kg (11.02 lb) | Shipping Units : 1 | Shipping Weight : 5.9 kg (13.01 lb) | Shipping Box : 360x360x200 mm (14.17x14.17x7.87 in) | || DESIGN : || Surround Shape : Roll | Cone Shape : Radial | Magnet Material : Neodymium Ring | Spider : Double Silicone | Pole Design : T-Pole | Woofer Cone Treatment : TWP Waterproof Both Sides | Recommended Enclosure : 40.0 dm3 (1.41 ft3) | Recommended Tuning : 42 Hz | || B&C Speakers has been one of largest and most prestigious professional loudspeaker transducer manufacturers in the world. In addition to designing and distributing components under the B&C brand name, they also supply OEM components to many of the top professional audio brands in the market today.