53. Design and Implementation of a Constant-Directivity Two-Way 12” Woofer Wedge Loudspeaker System

AES Convention: 143 Paper Number:377
Publication Date: 2017-10-06

This paper describes the design and implementation of a two-way constant-directivity wedge loudspeaker system that houses a single 12” woofer and eight 2” drivers in a 20° circular arc mounted on a curved baffle that covers the LF driver. An individual system comprises a 20° wedge box with a four-channel plate amplifier with two bridged channels driving the woofer, and the two other channels individually driving each half of the eight-driver array. This basic wedge box is then used in multiples to form larger circular-arc arrays of one up to six boxes making arrays that provide various vertical beamwidths in the range of 15° to 90°. Appropriate amplifier gains are chosen to smooth the polar coverage for each array size.

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Keele, Jr., D. B. (Don); Sarvis, Hugh; 2017; Design and Implementation of a Constant-Directivity Two-Way 12” Woofer Wedge Loudspeaker System [PDF]; DBK Associates and Labs, Bloomington, IN, USA; Presonus Audio Electronics-Worx Audio Technologies, Baton Rouge, LA, USA; Paper 377; Available from: https://aes2.org/publications/elibrary-page/?id=19328