Most headphones and speakers use electromagnetic force to drive speaker coils. Electrostatic speakers use electrostatic force to modulate a diaphragm. Mylar is used as the diaphragm in these headphones. Two insulating rings sandwich the mylar and a perforated stator is placed on either side. Ideally these stators would be acoustically transparent, but sheets of metal with 2mm (or smaller) holes … Read the rest
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