An Amplifier for Electret Headphones

Kröning M, Lerch R, Zahn R. An Amplifier for Electret Headphones. J Audio Eng Soc. 1982;30(9):607-609. Available from: https://aes.org/publications/elibrary-page/?id=3822

@article{Kroning1982_3822,
  author = {Kröning, Manfred and Lerch, Richard and Zahn, Rolf},
  title = {{An Amplifier for Electret Headphones}},
  journal = {Journal of the Audio Engineering Society},
  volume = {30},
  number = {9},
  pages = {607--609},
  year = {1982},
  month = sep,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=3822}
}

TY  - JOUR
TI  - An Amplifier for Electret Headphones
AU  - Kröning, Manfred
AU  - Lerch, Richard
AU  - Zahn, Rolf
T2  - Journal of the Audio Engineering Society
J2  - J. Audio Eng. Soc.
VL  - 30
IS  - 9
SP  - 607
EP  - 609
PY  - 1982
DA  - 1982/09/06
UR  - https://aes.org/publications/elibrary-page/?id=3822
PB  - Audio Engineering Society
LA  - en
AB  - Because of their relatively low sensitivity, electret headphones require high signal voltages to generate the customary sound pressure levels in the ear. An electronic amplifier for producing such signal voltages is described. For an output equivalent of 110 dB SPL in an artificial ear, the harmonic distortion of the amplifier was in the range of 0.2%, which was lower than the distortion of push-pull electret headphones. The distortion characteristic, particularly at low frequencies, was superior to that of the commonly used transformers.
ER  -