B&C Speakers 12PS100-8 LF Drivers 12-Inch Woofer 700 Watts Rms 1400 Watts Max Continuous Power Handling Capacity Ferrite Pro Audio Component Speaker Driver for Motorcycle Car || HIGHLIGHTS 1400 W continuous program power capacity | 100 mm (4 in) copper voice coil | 45 - 1000 Hz response | 93 dB sensitivity | Double silicone spider with optimized compliance | || SPECIFICATIONS Nominal Diameter : 320 mm (12.0 in) | Nominal Impedance : 8 Ω | Minimum Impedance : 6.7 Ω | Nominal Power Handling1 : 700 W | Continuous power handling2 : 1400 W | Sensitivity (1W/1m)3 : 93.0 dB | Frequency Range : 45 - 1000 Hz | Voice Coil Diameter : 100 mm (4.0 in) | Winding Material : Copper | Former Material : Glass Fibre | Winding Depth : 21.0 mm (0.83 in) | Magnetic Gap Depth : 11.0 mm (0.4 in) | Flux Density : 1.05 T | || DESIGN : | Surround Shape : Triple Roll | Cone Shape : Radial | Magnet Material : Ferrite | Spider : Double Silicone | Pole Design : T-Pole | Woofer Cone Treatment : TWP Waterproof Both Sides | Recommended Enclosure : 40.0 dm3 (1.41 ft3) | Recommended Tuning : 48 Hz | || PARAMETERS Resonance Frequency : 44 Hz | Re : 5.3 Ω | Qes : 0.29 | Qms : 3.9 | Qts : 0.27 | Vas : 47.0 dm3 (1.6 ft3) | Sd : 531.0 cm2 (82.3 in2) | η₀ : 1.3 % | Xmax : ± 8.0 mm | Xvar : ± 8.0 mm | Mms : 106.0 g | Bl : 22.5 Txm | Le : 2.0 mH | EBP : 151 Hz | || MOUNTING AND SHIPPING INFO || Overall Diameter : 319 mm (12.5 in) | Bolt Circle Diameter : 299 mm (11.8 in) | Baffle Cutout Diameter : 281.0 mm (11.1 in) | Depth : 118 mm (4.6 in) | Flange and Gasket Thickness : 13 mm (0.5 in) | Air Volume Occupied by Driver : 3.5 dm3 (0.12 ft3) | Net Weight : 8.8 kg (19.4 lb) | Shipping Units : 1 | Shipping Weight : 9.7 kg (21.38 lb) | Shipping Box : 360x360x200 mm (14.17x14.17x7.87 in) |