High Efficiency Speaker Asylum

RE: The Audio League Report (Julian Hirsch) Oct. 1955 - Karlson

173.80.163.220

In Reply to: RE: The Audio League Report (Julian Hirsch) Oct. 1955 - Karlson posted by AstroSonic on October 14, 2009 at 08:17:53

Hi Bob --that was a fun and informative article by Julian Hirsch (must have been a lot of work) --fwiw here's most dimensional details of the first Karlson TWELVE in that article (click to enlarge) - I had a full size 3-color factory blueprint with the aperture specs but think my kid threw it out (?) later K12 had 25 degree baffle and 6-slit vent

I've got more Audio League reports - might scan a few

Best, Freddy

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