Speaker system

Details Speaker system Speaker system

1984-03-02

1986-10-14

Fuller, Benjamin R.

Acoustics

Diaphragm and enclosure

181153, 181155, 181199, H05K 500

Patent

active

046167315

ABSTRACT:
An improved speaker system includes an open tube arrangement operated in conjunction with one or more closed tube components. The system includes a speaker having a frontal side which is positioned proximate an inlet end of an open primary tube. The tube may be provided with a plurality of apertures therethrough along the length thereof for the creation of even harmonic overtones. These apertures may be equally or unequally spaced as desired. Slits are provided at opposite ends of the primary tube and first and second additional tubes each close at one end surround opposite ends of the primary tube including the intensify base notes and enhance the fundamental wave lengths and odd harmonic overtones.

REFERENCES:
patent: 2193398 (1940-03-01), Fisher
patent: 3108653 (1963-10-01), Valldeperas
patent: 3517390 (1970-06-01), Whitehead
patent: 3547220 (1970-12-01), Watson
patent: 3993162 (1976-11-01), Juuti
patent: 4379213 (1983-04-01), Lehnhardt

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