Loudspeaker and horn combination

Details Loudspeaker and horn combination Loudspeaker and horn combination

1981-01-22

1983-01-25

Fuller, Benjamin R.

Acoustics

Diaphragm

With horn

181180, 181187, 181189, 181192, 181DIG1, G10K 1300

Patent

active

043698573

ABSTRACT:
A loudspeaker and horn combination having desirable sound clarity characteristics and having a desirable per unit of electric power input to per unit of sound output ratio can be constructed using a horn body of one or more parts of a rigid, closed cell polyurethane foam material having a smooth exterior skin or surface shaped so as to include an internal horn cavity. A speaker is located so that its diaphragm extends across an entrance end of the cavity. The cavity is shaped in a bilaterally symmetrical manner so as to include a sound chamber region adjacent to and leading from the speaker diaphragm, this sound chamber region having a restricted throat located intermediate its ends and having a continuous curvature between its ends, a flare region diverging outwardly from the end of the sound cavity region remote from the speaker and a transitional region located generally between the flare and sound cavity regions so as to connect the adjacent surfaces of these regions.

REFERENCES:
patent: 1314980 (1919-09-01), Pogonowski
patent: 3642091 (1972-02-01), Nohara et al.

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