Asymmetric All-Pass Crossover Alignments

Hawksford MJ. Asymmetric All-Pass Crossover Alignments. J Audio Eng Soc. 1993;41(3):123-134. Available from: https://aes.org/publications/elibrary-page/?id=7011

@article{Hawksford1993_7011,
  author = {Hawksford, Malcolm J.},
  title = {{Asymmetric All-Pass Crossover Alignments}},
  journal = {Journal of the Audio Engineering Society},
  volume = {41},
  number = {3},
  pages = {123--134},
  year = {1993},
  month = mar,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=7011}
}

TY  - JOUR
TI  - Asymmetric All-Pass Crossover Alignments
AU  - Hawksford, Malcolm J.
T2  - Journal of the Audio Engineering Society
J2  - J. Audio Eng. Soc.
VL  - 41
IS  - 3
SP  - 123
EP  - 134
PY  - 1993
DA  - 1993/03/06
UR  - https://aes.org/publications/elibrary-page/?id=7011
PB  - Audio Engineering Society
LA  - en
AB  - A family of asymmetric crossover filters is investigated that expands the established all-pass set. A general method of determining complementary crossover filters with an all-pass composite response is presented with a method of reflecting the crossover asymmetry about the crossover region. Several example filters are included. CAD techniques are used to verify the basic approach, and a simple application to a satellite-subwoofer loudspeaker is described where asymmetry in the crossover frequency response and the resulting overlapping of the high-pass and low-pass responses are shown to improve the effectiveness of filter attenuation. However, because of asymmetry in the high-pass and low-pass phase responses and the resulting polar response irregularity in association with noncoincident drive units, the application regime for these alignments is restricted to low frequency.
ER  -