SpecificationNominal Diameter 320 (12) mm (in)Nominal Impedance (1) 8 OhmMinimum Impedence 7.5 OhmNominal Power Handling (2) 450 WContinuous Power Handling (3) 900 WSensitivity (1W/1m) (4) 95 dBFrequency Range 40 - 1000 HzVoice Coil Diameter 76 (3) mm (in)Winding Material Copper Former Material Glass Fibre Winding Depth 22 (0.9) mm (in)Magnetic Gap Depth 10.5 (0.4) mm (in)Flux Density 1.15 TThiele & Small ParametersFs 42 HzRe 6.1 OhmQes 0.22 Qms 3.8 Qts 0.2 Vas 75 (2.6) dm3 (ft3)Sd 522 (80.9) cm2 (in2)Eta Zero 2.4 %Xmax +/- 7 mmXvar +/- 9 mmMms 74 gBl 23.5 TxmLe 2 mHMounting and Shipping InfoOverall Diameter 316 mm (12.4 in)Bolt Circle Diameter 296 mm (11.6 in)Baffle Cutout Diameter 282 mm (11.1 in)Depth 140 mm (5.5 in)Flange and Gasket Thickness 16 mm (5/8 in)Net Weight 7.6 kg (16.7 lb)Shipping Weight 8.4 kg (18.5 lb)Shipping Box 340x340x170 mm(13.4x13.4x6.7 in)1For different impedances, please ask.22 hours test made with continuous pink noise signal (6 dB crest factor).Power calculated on rated minimum impedance. 3Power on Continuous Program is defined as 3 dB greater than theNominal rating.4Applied RMS Voltage is set to 2.83V for 8 ohms Nominal Impedance.
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