ManualGENERAL SPECIFICATIONSNominal diametermm (in)380 (15)Nominal ImpedanceOhm8Minimum impedanceOhm6,0Program powerW800AES Power ratingW400SensitivitydB98Frequency rangeHz45 ÷ 2000Voice coil diametermm (in)75 (3)Chassis materialSteelMagnet materialFerriteMagnet dimensions OD x ID x hmm (in)190 x 85..