ManualGENERAL SPECIFICATIONSNominal diametermm (in)460 (18)Nominal ImpedanceOhm8Minimum impedanceOhm5,8Program powerW1400AES Power ratingW700SensitivitydB99Frequency rangeHz30 ÷1400Voice coil diametermm (in)100 (4)Chassis materialAluminiumMagnet materialFerriteMagnet dimensions OD x ID x hmm (in)220..