Electro-Voice - 664
Below are all the different types of Electro-Voice. Select the device of your choice, to download the manual
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MODEL 664 CARDIOID MICROPHONE ENGINEERING DATA DESCRIPTION AND APPLICATIONS The Electro Voice model 664 is a cardioid micro phone of the dynamic type with only one moving ele ment It is designed specifically for public address applications The cardioid pattern is obtained through use of three sound entrances located in the back of the diaphragm These three sound entrances each utilizing the proper acoustical impedance com bine to form one effective back entrance which varies in distance from the diaphragm inversely with frequency The resulting phase and amplitude conditions produce a uniform cardioid pattern over a wide frequency range This variable front to back distance along with dynamic type construction af fords high resistance to mechanica ...Click here to download the manual
Contents
MODEL 664 CARDIOID MICROPHONE ENGINEERING DATA DESCRIPTION AND APPLICATIONS The Electro Voice model 664 is a cardioid micro phone of the dynamic type with only one moving ele ment It is designed specifically for public address applications The cardioid pattern is obtained through use of three sound entrances located in the back of the diaphragm These three sound entrances each utilizing the proper acoustical impedance com bine to form one effective back entrance which varies in distance from the diaphragm inversely with frequency The resulting phase and amplitude conditions produce a uniform cardioid pattern over a wide frequency range This variable front to back distance along with dynamic type construction af fords high resistance to mechanica ...