12MH32-8 12-inch Woofer with 8 Ohms Impedance 400 Watts Rms 800 Watt Max Pro Audio Component Speaker Driver for Motorcycle Car

Nominal Outer Diameter: 320 mm (12.0 in) Continuous Power Handling Capacity: 800 W Nominal Power Handling: 400 W Frequency Response: 50 - 3000 Hz Sensitivity (1W/1m): 101.0 dB Nominal Impedance: 8 Ohms Minimum Impedance: 6.5 Ohms Winding Material: Copper Winding Depth: 14.0 mm (0.55 in) Voice Coil Diameter: 76 mm (3.0 in) Cone Shape: Radial Surround Shape: Double Roll Former Material: Glass Fibre Magnetic Gap Depth: 8.0 mm (0.31 in) Flux Density: 1.4 T SPECIFICATIONS Nominal Diameter: 320 mm (12.0 in) Nominal Impedance: 8 Minimum Impedance: 6.5 Nominal Power Handling: 400 W Continuous Power Handling: 800 W Sensitivity (1W/1m): 101.0 dB Frequency Range: 50 - 3000 Hz Voice Coil Diameter: 76 mm (3.0 in) Winding Material: Copper Former Material: Glass Fibre Winding Depth: 14.0 mm (0.55 in) Magnetic Gap Depth: 8.0 mm (0.31 in) Flux Density: 1.4 T DESIGN Surround Shape: Double Roll Cone Shape: Radial Magnet Material: Ferrite Spider: Single Pole Design: T-Pole Woofer Cone Treatment: None PARAMETERS Resonance Frequency: 53 Hz Re: 5.2 Qes: 0.2 Qms: 7.2 Qts: 0.19 Vas: 63.0 dm³ (2.2 ft³) Sd: 522.0 cm² (80.9 in²) : 4.8 % Xmax: ± 5.0 mm Xvar: ± 7.0 mm Mms: 54.0 g Bl: 22.3 Txm Le: 0.83 mH EBP: 265 Hz MOUNTING AND SHIPPING INFO Overall Diameter: 316 mm (12.4 in) Bolt Circle Diameter: 296 mm (11.6 in) Baffle Cutout Diameter: 282.0 mm (11.1 in) Depth: 133 mm (5.24 in) Flange and Gasket Thickness: 12 mm (0.47 in) Air Volume Occupied by Driver: 3.3 dm³ (0.12 ft³) Net Weight: 7.6 kg (16.7 lb) Shipping Units: 1 Shipping Weight: 8.5 kg (18.74 lb) Shipping Box Dimensions: 360x360x200 mm (14.17x14.17x7.87 in)