An extremely flexible yet easily settable equalizing system combines the advantages of four shelf response controls within the audio range and two peaking controls above and below. A dynamic range of 120 dB is achieved at flat settings through the use of a combination of discrete and integrated circuit low-noise operational amplifiers, all operated at near unity gain.

Author: Burwen, Richard S.
Affiliation: Burwen Laboratories, Burlington, MA
JAES Volume 23 Issue 9 pp. 722-726; November 1975
Publication Date: November 1, 1975

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