ManualGENERAL SPECIFICATIONSNominal diametermm (in)460 (18)Nominal ImpedanceOhm8Minimum impedanceOhm7,4Program powerW3400AES Power ratingW1700SensitivitydB97Frequency rangeHz30 ÷1000Voice coil diametermm (in)115 (4.5)Chassis materialAluminiumMagnet materialNeodymiumMagnet dimensions OD x ID x hmm (i..