B&C Speaker 400W, 8Ohms, 10

400 W Continuous Program Power Capacity . 64 Mm (2.5 In) Aluminium Voice Coil . 60 - 4000 Hz Response . 98.5 Db Sensitivity . Neodymium Magnet Allows A Very Light Yet . Powerful Motor Assembly . . Specifications . Nominal Diameter : 250 Mm (10.0 In) . Nominal Impedance : 8 . Minimum Impedance : 6.2 . Nominal Power Handling1 : 200 W . Continuous Power Handling2 : 400 W . Sensitivity (1W/1M)3 : 98.5 Db . Frequency Range : 60 - 4000 Hz . Voice Coil Diameter : 64 Mm (2.5 In) . Winding Material : Aluminium . Former Material : Glass Fibre . Winding Depth : 12.0 Mm (0.47 In) . Magnetic Gap Depth : 8.0 Mm (0.31 In) . Flux Density : 1.25 T . . Design . Surround Shape : Double Roll . Cone Shape : Exponential . Magnet Material : Neodymium Inside Slug . Spider : Single . Pole Design : Straight Pole . Woofer Cone Treatment : None . Recommended Enclosure : 26.0 Dm3 (0.92 Ft 3) . Recommended Tuning : 67 Hz . . Parameters . Resonance Frequency : 61 Hz . Re : 5.4 . Qes : 0.33 . Qms : 4.5 . Qts : 0.31 . Vas : 32.0 Dm3 (1.1 Ft3) . Sd : 320.0 Cm2 (50.0 In2) . : 2.5 % . Xmax : 4.0 Mm . Xvar : 5.5 Mm . Mms : 29.0 G . Bl : 15.0 Txm . Le : 0.5 Mh . Ebp : 184 Hz . . Mounting And Shipping Info . Overall Diameter : 261 Mm (10.3 In) . Bolt Circle Diameter : 245 Mm (9.6 In) . Baffle Cutout Diameter : 230.0 Mm (9.1 In) . Depth : 122 Mm (4.8 In) . Flange And Gasket Thickness : 13 Mm (0.5 In) . Air Volume Occupied By Driver : 1.5 Dm3 (0.05 Ft3) . Net Weight : 2.0 Kg (4.4 Lb) . Shipping Units : 1 . Shipping Weight : 2.6 Kg (5.7 Lb) . Shipping Box : 295X314X175 Mm (11.61X12.36X6.89 In) .