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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: Request for Info on Multicell horns posted by jweiss on June 14, 2007 at 17:35:24:
To expand a bit on what Jonathan said, his 18 cell horns are of the type that were supplied by RCA in the late 1930s for their Shearer Horn type two way systems. The RCA horns were available with cells three rows high and 3,4,5 and 6 rows wide, to accommodate different shaped theatres. These horns were nominally 300Hz. cutoff, but actually have a flare expansion somewhat lower, like 160 or 180Hz. The horn has an outer casing, and all interior spaces are stuffed with some sort of fibrous material to dampen cell wall vibration. Jonathan's horns are extremely heavy- I was once in the wrong place at the wrong time and got to help him lug one of them up a flight of stairs.
I believe that the RCA individual cell dimensions are similar to the Lansing and later Altec Lansing 300Hz. multicellulars; these are all descendants of the horns built for the MGM Shearer Horn prototype systems of 1935. Jonathan's huge horns, each equipped with two RCA MI-1428B compression drivers (of the same period) provide a superbly lifelike, effortless and dynamic performance between 300Hz. and 7kHz.
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Follow Ups
- RE: Request for Info on Multicell horns - Steve Schell 00:15:06 06/15/07 (0)
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