Coiled exponential bass/midrange/high frequency horn loudspeaker

Details Coiled exponential bass/midrange/high frequency horn loudspeaker Coiled exponential bass/midrange/high frequency horn loudspeaker

1990-12-03

1993-02-16

Gellner, Michael L.

Acoustics

Diaphragm and enclosure

With horn

181155, 181156, 181159, 181192, 181199, H05K 500

Patent

active

051873338

ABSTRACT:
Coiled exponential bass/midrange/high frequency horn loudspeakers which are characterized by a rigid cabinet of selected size having a sealed air chamber in the base thereof for receiving a low frequency speaker, or driver, a coiled or convoluted, exponentially flared sound passage extending from the air chamber to the top of the cabinet and a high frequency horn mounted in the cabinet near the open top to extend the audio range of the loudspeaker system, which high frequency horn is attached to a corresponding high frequency driver by means of a time adjustable acoustic delay line. The combination of a high frequency acoustically delayed horn and a low frequency driver separated by a continuously exponentially expanding or flared, coiled or convoluted, multi-tapered sound passage chamber, enables the sound waves from both horns to exit the cabinet at substantially the same time.

REFERENCES:
patent: 3944757 (1976-03-01), Tsukamoto
patent: 4100371 (1978-07-01), Bayliff
patent: 4790408 (1988-12-01), Adair
patent: 4930596 (1990-06-01), Saiki et al.

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