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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: 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
Pg FOUR
Pg FIVE
Pg SIX
Edits: 09/11/07 09/11/07 09/11/07
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Follow Ups
- RE: Conceptual idea behind Karlson - freddyi 15:57:13 09/11/07 (8)
- RE: What's the proper curve formula for the 'coupler' - 3LockBox 04:43:19 09/13/07 (0)
- wow - that's over $1100 in today's money - troporobo 22:11:29 09/12/07 (0)
- RE: Conceptual idea behind Karlson - Paul Eizik 19:23:45 09/12/07 (0)
- RE: Conceptual idea behind Karlson - PRM 11:49:41 09/12/07 (1)
- RE: Conceptual idea behind Karlson - freddyi 12:08:22 09/12/07 (0)
- RE: Conceptual idea behind Karlson - SteveBrown 06:07:27 09/12/07 (0)
- Oh for the days... - Duke 20:12:04 09/11/07 (1)
- RE: Oh for the days... - GM 14:42:38 09/12/07 (0)
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