A newly designed wide-range electrostatic loudspeaker incorporates: (a) push-pull operation with a light, 20-in. diameter, peripherally-supported diaphragm; (b) a high-resistivity coating on the diaphragm surfaces to give constant-charge operation without the use of an external series resistor; (c) a bias voltage of 16 kv applied through a corona-ring around the edge of the diaphragm; (d) a high-output-voltage audio amplifier to provide a driving signal of 4.5 kilovolts rms; (e) large diaphragm excursion to allow adequate low-frequency reproduction; and (f) electrical segmentation of the diaphragm to give broad directivity patterns at all frequencies. The experimental electrostatic loudspeaker is capable of a frequency response essentially flat within ±8 db from 16 cps to 16,000 cps. Total harmonic distortion at 16 cps is 6 percent. The figures quoted are for a sound pressure level of 80 db (re 2 x 10/-4 µ bar) measured at a distance of 6 ft on the loudspeaker axis in an anechoic chamber.
Click to purchase paper as a non-member or you can login as an AES member to see more options.
No AES members have commented on this paper yet.
To be notified of new comments on this paper you can
subscribe to this RSS feed.
Forum users should login to see additional options.
If you are not yet an AES member and have something important to say about this paper then we urge you to join the AES today and make your voice heard. You can join online today by clicking here.
