By Emily Adamo
So what are electrostatic speakers?
How do they work?
Electrostatic speakers vibrate air using a large and thin conductive diaphragm panel balanced between two motionless conductive panels. These conductive panels are charged with electrical current from a wall outlet, making an electrical field with a positive end and a negative end.
The audio signal creates a current through the balanced diaphragm panel, promptly transferring a positive charge and a negative charge. When the charge is positive, the panel is drawn toward the negative end of the field; when the charge is negative, it moves toward the positive end of the field. The diaphragm promptly vibrates the air in front of it.