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High Efficiency Speaker Asylum Need speakers that can rock with just one watt? You found da place. |
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High Efficiency Speaker Asylum Need speakers that can rock with just one watt? You found da place. |
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In Reply to: RE: Klipschorns, Hartsfields, Patricians, or maybe Avant Garde Trios...... posted by bcguitar on April 10, 2014 at 05:13:44:
The great Frank Massa of RCA fame in the 1930s discussed a compression driver loaded by horns on both sides of the diaphragm as yielding an efficiency of 70% if memory serves. He and Olson worked on several complex folded horn systems that loaded the heck out of both sides of a cone or diaphragm; some were produced by RCA, some not. One such system was described in "A Compound Horn Loudspeaker", available at some expense from the Acoustical Society of America (see below).
Massa was also intrigued at the prospect of very high efficiency direct radiator loudspeakers using much heavier than typical voice coils: his U.S. Patent #2,227,943 is a real eye-opener. He and Olson did a great deal of work on this subject in the 1930s. If this subject is of interest then Google them both and read, read, read.
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Follow Ups
- RE: Klipschorns, Hartsfields, Patricians, or maybe Avant Garde Trios...... - Steve Schell 22:06:31 04/12/14 (1)
- RE: Klipschorns, Hartsfields, Patricians, or maybe Avant Garde Trios...... - taxslave 18:08:22 04/15/14 (0)
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