A Family of Circuit Topologies for the Linkwitz-Riley (LR-4) Crossover Alignment

Hawksford MJ. A Family of Circuit Topologies for the Linkwitz-Riley (LR-4) Crossover Alignment. In: AES Convention 82. Audio Engineering Society; 1987. Paper 2468. Available from: https://aes.org/publications/elibrary-page/?id=4961

@inproceedings{Hawksford1987_4961,
  author = {Hawksford, Malcolm J.},
  title = {{A Family of Circuit Topologies for the Linkwitz-Riley (LR-4) Crossover Alignment}},
  booktitle = {AES Convention 82},
  note = {Paper 2468},
  year = {1987},
  month = mar,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=4961}
}

TY  - CPAPER
TI  - A Family of Circuit Topologies for the Linkwitz-Riley (LR-4) Crossover Alignment
AU  - Hawksford, Malcolm J.
T2  - AES Convention 82
M1  - Paper 2468
PY  - 1987
DA  - 1987/03/06
UR  - https://aes.org/publications/elibrary-page/?id=4961
PB  - Audio Engineering Society
LA  - en
AB  - A family of LR-4 circuit topologies is presented that is of direct application to the audiophile class of reproduction systems where system transparency and cost-effective design is paramount. Methodologies including quasi-passive and active realizations are described, where the emphasis is to establish both high- and low-pass filter structures using just four reactive elements and without the need for all-pass compensation. New structures are identified that achieve optimum matrixing without redundant reactive elements and a technique employing a low-feedback, transconductance amplifier is proposed. A design example of a three-way prototype using eight reactive elements is discussed, where loudspeaker compensation includes the use of a mid-range driver with a Butterworth if alignment.
ER  -