A Generalized Active Equalizer for Closed-Box Loudspeaker Systems

Leach J,WM. A Generalized Active Equalizer for Closed-Box Loudspeaker Systems. J Audio Eng Soc. 1990;38(3):142-146. Available from: https://aes.org/publications/elibrary-page/?id=6047

@article{Leach1990_6047,
  author = {Leach, Jr., W. Marshall},
  title = {{A Generalized Active Equalizer for Closed-Box Loudspeaker Systems}},
  journal = {Journal of the Audio Engineering Society},
  volume = {38},
  number = {3},
  pages = {142--146},
  year = {1990},
  month = mar,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=6047}
}

TY  - JOUR
TI  - A Generalized Active Equalizer for Closed-Box Loudspeaker Systems
AU  - Leach, Jr., W. Marshall
T2  - Journal of the Audio Engineering Society
J2  - J. Audio Eng. Soc.
VL  - 38
IS  - 3
SP  - 142
EP  - 146
PY  - 1990
DA  - 1990/03/06
UR  - https://aes.org/publications/elibrary-page/?id=6047
PB  - Audio Engineering Society
LA  - en
AB  - An equalizer is described which extends the low-frequency response of a closed-box loudspeaker system. The equalizer consists of an auxiliary active filter that converts the overall system response to that of a fourth-order Butterworth alignment. The method used to realize the equalizer is general and can be extended to transfer functions other than fourth-order Butterworth. The circuit realization requires knowledge of the resonance frequency and total quality factor of the closed-box system.
ER  -