High Efficiency Speaker Asylum

RE: Conceptual idea behind Karlson

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This Post Has Been Edited by the Author

In Reply to: RE: Conceptual idea behind Karlson posted by JoshK on September 11, 2007 at 14:59:54

John Karlson's "Acoustic Transducer" was included in his 1950's list of inventions and meant to add a type of reverb besides impedance transformation though a high-low pressure leak combined with coupled-cavity action. They were used for sound reinforcement at the 1964-65 World's Fair by Disney, etc.
Karlson's (and type) couplers have 2:1 apparent chamber volume ratios. Karlson's "asymmetric projectors" had 1:1.
"K-horn" is common reference to Paul Klipsch's famous "Klipschorn"
Karlson had an odd/novel approach but IME was anything but "clueless"
1952
1st ad I could find
"A New Approach In Loudspeaker Enclosures"
Pg ONE
Pg TWO
Pg THREE<./A>
Pg FOUR
Pg FIVE
Pg SIX<./A>

Edits: 09/11/07

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