Acoustic Alignment of Loudspeaker Drivers by a Nonsymmetrical Crossovers of Different Orders

Hillerich B. Acoustic Alignment of Loudspeaker Drivers by a Nonsymmetrical Crossovers of Different Orders. J Audio Eng Soc. 1989;37(9):691-699. Available from: https://aes.org/publications/elibrary-page/?id=6071

@article{Hillerich1989_6071,
  author = {Hillerich, Bernd},
  title = {{Acoustic Alignment of Loudspeaker Drivers by a Nonsymmetrical Crossovers of Different Orders}},
  journal = {Journal of the Audio Engineering Society},
  volume = {37},
  number = {9},
  pages = {691--699},
  year = {1989},
  month = sep,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=6071}
}

TY  - JOUR
TI  - Acoustic Alignment of Loudspeaker Drivers by a Nonsymmetrical Crossovers of Different Orders
AU  - Hillerich, Bernd
T2  - Journal of the Audio Engineering Society
J2  - J. Audio Eng. Soc.
VL  - 37
IS  - 9
SP  - 691
EP  - 699
PY  - 1989
DA  - 1989/09/06
UR  - https://aes.org/publications/elibrary-page/?id=6071
PB  - Audio Engineering Society
LA  - en
AB  - The time offset due to acoustical center displacements in multiway loudspeakers is corrected by using nonsymmetrical crossovers of different orders, where the group delay difference coincides with the time offset. The phase match is restricted to frequencies close to the crossover frequency, which nevertheless produces symmetric polar behavior and flat magnitude of the summed response for a considerable range of compensated time offsets. This method is well suited for passive crossover networks, where time offset correction by all-pass filters is not possible. The coefficients for a number of two-way crossover filters with varied time offsets are presented as examples. Furthermore, for experimental verification, the passive crossover of an available loudspeaker is optimized.
ER  -