High Efficiency Speaker Asylum

RE: Da mini K

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did you tilt the mini-K's portboard forwards about 10 degrees? one of my fave Karlson is the first K12 form 1955 - I had a blueprint but think my kid threw it out. Its the same size and tapers (42.5" radius) as later K12 but had a reversible perpendicular port board with lip on one side plus a 3-position wood bar on the rear panel to vary its lowpass choke action - - maybe this would scale to 10" giving high cutoff but a lot of punch (?) - - I need one in mahagony "Karlsonite" to make a pair

sideview 1955 K12



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