An electrostatically driven foil diaphragm is loaded acoustically by a horn having the throat area 10 times smaller than that of the diaphragm. The resulting acoustical transformation enables one to increase considerably the frequency range. Cross section of a patented arrangement, design data, dimensions, and results are presented.

Author: Merhaut, Josef
Affiliation: Technical University, Prague, Czechoslovakia
JAES Volume 19 Issue 10 pp. 840-846; November 1971
Publication Date: November 1, 1971

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