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Journal Article

A Subtractive Implementation of Linkwitz-Riley Crossover Design

Authors: Chalupa, Rudolf

Journal of the Audio Engineering Society · Volume 34 · Issue 7/8 · pp. 556–559 · July 1986

Abstract

With the exception of the state variable implementation of Bohn, active crossover implementation of Linkwitz-Riley crossovers has been by cascading of multiple-feedback or Sallen and Key Butterworth filters. In 1983 Lipshitz and Vanderkooy showed that the Linkwitz-Riley filters were particular cases of a family of crossovers characterized by having their high- and low-pass responses in phase at all frequencies. Practical active implementation of the subtractive approach for the second- and fourth-order cases are demonstrated. Advantages and disadvantages of this topology are discussed.

Details

Publication
Journal of the Audio Engineering Society
Volume
34
Issue
7/8
Pages
556–559
Publication date
July 6, 1986
Affiliation
Extel Corporation, Northbrook, IL (See document for exact affiliation information.)
Type
Journal Article