High frequency loudspeaker

Details High frequency loudspeaker High frequency loudspeaker

1989-01-06

1991-06-25

Isen, Forester W.

Electrical audio signal processing systems and devices

Electro-acoustic audio transducer

Having acoustic wave modifying structure

181165, 181187, H04R 2500

Patent

active

050274112

ABSTRACT:
An improved loudspeaker assembly for frequencies higher than approximately 6 kHz, i.e., a tweeter assembly, is disclosed. The tweeter assembly includes a dome tweeter driver for delivering high frequency sound to a listener, and a cylindrical housing for mounting the tweeter driver in a horizontal plane. A centrally located aperture is provided in the top surface of the housing for receiving the dome portion of the tweeter, and a plurality of concentric annular ridges are also provided, and are spaced outwardly from the tweeter dome. The annular ridges function to reflect sound energy transmitted off the dome structure, and are used to disperse the high frequency energy in a horizontal direction within the listening room.

REFERENCES:
patent: 2541946 (1951-02-01), Stark
patent: 4029910 (1977-06-01), Allison
Abraham B. Cohen, "Wide-Angle Dispersion of High-Frequency Sound", Dec. 1952.

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