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-   -   18" Karlson couplers (http://www.diyaudio.com/forums/multi-way/112483-18-karlson-couplers.html)

freddi 24th November 2007 02:11 PM

18" Karlson couplers
 
some 18" woofers are suitable for Karlson couplers - I used a low qes low mass Eminence in a cabinet made from one 4'x8' sheet of plywood with good result. Cetec-Gauss marketed a 10 cubic foot 5181 K18 and I've posted those plans many times

a Karlson slotted tube waveguide wouldhave better vertical coverage than most horn

http://db.audioasylum.com/cgi/m.mpl?forum=hug&n=112737

1-sheet coupler
http://img470.imageshack.us/img470/2...frazjpgxy0.jpg

a slotted HF waveguide might mounted inside per Karlson's 1965 "x15"
http://img218.imageshack.us/img218/7829/x151wingrd7.jpg


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