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 to increase considerably the frequency range and radiated power. Cross-section of a patented arrangement, design data, dimensions and results are presented.

Author: Merhaut, Josef
Affiliation: Technical University of Prague, Prague, Czechoslovakia
AES Convention: 35 (October 1968) Paper Number: 590
Publication Date: October 1, 1968

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