Loudspeaker driver unit

Details Loudspeaker driver unit Loudspeaker driver unit

1978-01-26

1979-03-13

Tomsky, Stephen J.

Acoustics

Diaphragm

With horn

1791155H, G10K 1300, H04R 700

Patent

active

041437381

ABSTRACT:
A driver unit for a horn type loudspeaker is disclosed. The driver unit comprises a dome-shaped diaphragm and an equalizer positioned on the concave side of the diaphragm. The equalizer has a convex surface adjacent the diaphragm and a plurality of slits extending from the convex surface to an interior, outwardly opening throat. The slits are disposed in equal angular pitch with the outermost slits being located at the edge of the convex surface of the equalizer. The outermost slits are approximately one half the width of the remaining slits, the remaining slits being of equal width.

REFERENCES:
patent: 2037187 (1936-04-01), Wente
patent: 2107757 (1938-02-01), Kinsley
patent: 2907837 (1959-10-01), Brami
patent: 2942071 (1960-06-01), Witchey
patent: 3852529 (1974-12-01), Schafft
patent: 3991286 (1976-11-01), Henricksen
patent: 4050541 (1977-09-01), Henricksen

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