Acoustics – Anatomic or prosthetic relation – Ear and mouth
Patent
1979-01-02
1980-09-23
Olms, Douglas W.
Acoustics
Anatomic or prosthetic relation
Ear and mouth
179 1GA, 181144, 181156, H04R 102
Patent
active
042244692
ABSTRACT:
An acoustic speaker system suitable for use with a home stereo system has a bass speaker, a super-tweeter speaker, a tweeter speaker and a midrange speaker. The speakers are disposed in a generally ascending arrangement with the bass speaker occupying the bottom position, the super-tweeter speaker mounted immediately above the bass speaker, the tweeter speaker mounted immediately above the super-tweeter speaker and the midrange speaker mounted above the tweeter speaker. Speakers for left and right channels of a stereo system are disposed in mirror image in two enclosures. The bass speaker is enclosed in a folded trapezoidal transmission line, and the midrange and tweeter speaker are also housed in transmission line enclosures. A second embodiment contains speakers for both channels in one speaker system disposed in mirror arrangement about a diagonal axis, along a flattened S-shaped curve. An adjustable tuning mechanism is provided for fine tuning the bass transmission line enclosure.
REFERENCES:
patent: 2866514 (1958-12-01), Weathers
patent: 3165587 (1965-01-01), Alderson
patent: 3712411 (1973-01-01), Monroe
patent: 3923123 (1975-12-01), Latimer-Sayer
patent: 3927261 (1975-12-01), Dahlquist
"The Transmission Line Loudspeaker Enclosure," by Bailey, Wireless World, May 1972, vol. 78, No. 1439, pp. 215-217.
"The Amazing Maze," by Weems, Stereo, Winter 1973, pp. 54-60.
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