Speaker system

Details Speaker system Speaker system

1977-01-31

1978-11-21

Tomsky, Stephen J.

Acoustics

Diaphragm and enclosure

Reflex baffle

H05K 500

Patent

active

041262042

ABSTRACT:
In a bass-reflex type speaker system, in which sound signal waves radiating from the back of a speaker within a cabinet are emitted out through a hollow duct while the phase of the sound signal wave is reversed, the improvement comprising at least one dividing plate secured within the hollow duct and disposed parallel to the longitudinal direction of the duct or a hollow pipe with a diameter smaller than that of the duct, the hollow pipe being coaxially disposed within the hollow duct where the pipe may be made of sound absorbing material.

REFERENCES:
patent: 2810448 (1957-10-01), Van Diyck
patent: 3327808 (1967-06-01), Shaper
patent: 3443660 (1969-05-01), Virva et al.
patent: 3684051 (1972-08-01), Hopkins

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