B&C Speakers 12MH801-8 LF Drivers 12-inch with 8 Ohms Impedance 8 Ohms Impedance 350 Watts Rms 700 Watt Max Pro Audio Component Speaker Driver for Motorcycle Car || HIGHLIGHTS 700 W continuous program power capacity | 76 mm (3 in) aluminum voice coil | 55 - 5000 Hz response | 100 dB sensitivity | Aluminum demodulating ring allows a very low distortion figure | || SPECIFICATIONS Nominal Diameter : 320 mm (12.0 in) | Nominal Impedance : 8 Ω | Minimum Impedance : 6.3 Ω | Nominal Power Handling1 : 350 W | Continuous power handling2 : 700 W | Sensitivity (1W/1m)3 : 100.0 dB | Frequency Range : 55 - 5000 Hz | Voice Coil Diameter : 76 mm (3.0 in) | Winding Material : Aluminum | Former Material : Glass Fibre | Winding Depth : 16.0 mm (0.63 in) | Magnetic Gap Depth : 8.0 mm (0.31 in) | Flux Density : 1.45 T | || DESIGN : || Surround Shape : Accordion | Cone Shape : Radial | Magnet Material : Ferrite | Spider : Single | Pole Design : T-Pole | Woofer Cone Treatment : None | || PARAMETERS Resonance Frequency : 53 Hz | Re : 5.0 Ω | Qes : 0.22 | Qms : 5.6 | Qts : 0.21 | Vas : 76.0 dm3 (2.68 ft3) | Sd : 522.0 cm2 (80.91 in2) | η₀ : 4.82 % | Xmax : ± 6.0 mm | Xvar : ± 7.0 mm | Mms : 46.0 g | Bl : 18.6 Txm | Le : 0.57 mH | EBP : 240 Hz | || MOUNTING AND SHIPPING INFO || Overall Diameter : 316 mm (12.44 in) | Bolt Circle Diameter : 296 mm (11.6 in) | Baffle Cutout Diameter : 282.0 mm (11.1 in) | Depth : 135 mm (5.31 in) | Flange and Gasket Thickness : 14 mm (0.55 in) | Air Volume Occupied by Driver : 3.3 dm3 (0.12 ft3) | Net Weight : 7.4 kg (16.31 lb) | Shipping Units : 1 | Shipping Weight : 8.3 kg (18.3 lb) | Shipping Box : 360x360x200 mm (14.17x14.17x7.87 in) |