A Wide-Range Electrostatic Loudspeaker

Malme CI. A Wide-Range Electrostatic Loudspeaker. J Audio Eng Soc. 1959;7(1):47-54. Available from: https://aes.org/publications/elibrary-page/?id=580

@article{Malme1959_580,
  author = {Malme, Charles I.},
  title = {{A Wide-Range Electrostatic Loudspeaker}},
  journal = {Journal of the Audio Engineering Society},
  volume = {7},
  number = {1},
  pages = {47--54},
  year = {1959},
  month = jan,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=580}
}

TY  - JOUR
TI  - A Wide-Range Electrostatic Loudspeaker
AU  - Malme, Charles I.
T2  - Journal of the Audio Engineering Society
J2  - J. Audio Eng. Soc.
VL  - 7
IS  - 1
SP  - 47
EP  - 54
PY  - 1959
DA  - 1959/01/06
UR  - https://aes.org/publications/elibrary-page/?id=580
PB  - Audio Engineering Society
LA  - en
AB  - 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.
ER  -