Design Factors in Horn-Type Speakers

Plach DJ. Design Factors in Horn-Type Speakers. J Audio Eng Soc. 1953;1(4):276-281. Available from: https://aes.org/publications/elibrary-page/?id=89

@article{Plach1953_89,
  author = {Plach, Daniel J.},
  title = {{Design Factors in Horn-Type Speakers}},
  journal = {Journal of the Audio Engineering Society},
  volume = {1},
  number = {4},
  pages = {276--281},
  year = {1953},
  month = oct,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=89}
}

TY  - JOUR
TI  - Design Factors in Horn-Type Speakers
AU  - Plach, Daniel J.
T2  - Journal of the Audio Engineering Society
J2  - J. Audio Eng. Soc.
VL  - 1
IS  - 4
SP  - 276
EP  - 281
PY  - 1953
DA  - 1953/10/06
UR  - https://aes.org/publications/elibrary-page/?id=89
PB  - Audio Engineering Society
LA  - en
AB  - Maximum efficiency in a horn unit can be achieved only if a conjugate match exists between driver and horn. This match is possible only if the unloaded resonance of the driver is greater than horn cutoff frequency. Since the throat resistance of a finite horn at cutoff is a small fraction of its asymptotic value, the point of reactance annulling is chosen at this frequency. The use of hyperbolic-exponential horns makes possible practically any desired resistance or reactance characteristic near cutoff. The hyperbolic-exponential horn allows much more uniform transmission down nearer to cutoff than is possible with the exponential type.
ER  -