Acoustics – Plural diaphragm sound sources – Plural chambers
Patent
1989-02-24
1990-07-10
Fuller, Benjamin R.
Acoustics
Plural diaphragm sound sources
Plural chambers
181147, 181199, 381 24, 381 90, 381184, 381186, 381205, H05K 500
Patent
active
049401084
ABSTRACT:
An open line source speaker system includes a first columnar cabinet enclosing a plurality of midrange or woofer speakers arranged in the cabinet in a vertical line and a second columnar cabinet enclosing a plurality of tweeters arranged in the cabinet in a vertical line, with the first and second cabinets being spaced a predetermined distance from each other by a pair of spacing elements and the base portion of the speaker system supporting the first and second cabinets. The vertical height of the speakers will be such as to offer a large listening window of approximately floor height to well above the listener's head. All frequencies of the music originate from the same plane as positioned from the listener thus maintaining correct time/phase relationship and correct stereo image in both the horizontal and vertical planes regardless of musical frequency. Each column is constructed as to minimize early reflections, therefore is either baffleless in the case of the tweeter column, or absolute minimum, which is the case of the midrange or woofer column.
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