The acoustical manifold is presented as a device for improving the performance of high-level concert sound reinforcement speaker systems. Recently developed bass, midbass, and high-frequency devices are discussed, each of which effectively sums the output of four loudspeakers, producing from the four a single coherent source. The advantages of manifolds over multiple sources are improved audience coverage, reduced polar response lobing, small-frontal area arrays, small transportable enclosures, and in certain cases reduced distortion and increased efficiency.

Authors: Carlson, David; Gunness, David
Affiliation: Electro-Voice, Inc., Buchunan, MI
AES Convention: 81 (November 1986) Paper Number: 2387
Publication Date: November 1, 1986
Subject: Audio Reproduction, Transducers, and Sound Reinforcement: Loudspeaker Arrays and Crossovers

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