Unidirectional woofer systems preferably use resistance-loaded ports, to control the pressure-gradient. Analysis of the acoustical analog circuit shows how to optimize the design for any specific purpose. One can trade between box dimensions, frequency range, and radiation efficiency. The predominantly resistive rear-load on the driver simplifies the application of motional feedback.
Author:
Holmes, Thomas J.
AES Convention:
77 (March 1985)
Paper Number:
2206
Publication Date:
March 1, 1985
Subject:
Loudspeakers
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