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Journal Article

Wide-Range Electrostatic Loudspeaker with a Zero-Free Polar Response

Authors: White, D. R.

Journal of the Audio Engineering Society · Volume 57 · Issue 10 · pp. 822–831 · October 2009

Abstract

A floor-to-ceiling electrostatic doublet loudspeaker uses a symmetric RC transmission line to equalize the frequency response and to give a zero-free polar pattern. Such equalization ensures that the entire electrostatic loudspeaker (ESL) panel contributes acoustic energy at low frequencies. The critical design parameters are the total capacitance of the panel and the intersegment coupling resistance of the transmission line. These parameters provide a tradeoff among midband sensitivity, high-frequency polar response, and low-frequency cutoff. Computer models were used to evaluate the performance of the proposed design.

Details

Publication
Journal of the Audio Engineering Society
Volume
57
Issue
10
Pages
822–831
Publication date
October 6, 2009
Affiliation
Industrial Research Ltd, Lower Hutt, New Zealand (See document for exact affiliation information.)
Type
Journal Article