Here's a "Karlson Compendium" I posted at Diyaudio

[klam4]

some history, plans for the "Heritage" models. John Karlson had a "K18". The X15 model and K-tube waveguide, the "Clam/Klam" projectors. Spinoff approaches including "The Karlsonator" and "XKi".

If you can add any info, lore, Diy plans which could be shared at Diyaudio, it would be greatly appreciated.

(btw I have a K-slotted acoustic bass which may sell along with what's left of my aluminum neck Kramers.)

A Karlson Compendium - Part One - "A New Approach in Loudspeaker Enclosures" - diyAudio

 

[bobyoung53]

some history, plans for the "Heritage" models. John Karlson had a "K18". The X15 model and K-tube waveguide, the "Clam/Klam" projectors. Spinoff approaches including "The Karlsonator" and "XKi".

If you can add any info, lore, Diy plans which could be shared at Diyaudio, it would be greatly appreciated.

(btw I have a K-slotted acoustic bass which may sell along with what's left of my aluminum neck Kramers.)

A Karlson Compendium - Part One - "A New Approach in Loudspeaker Enclosures" - diyAudio

Very interesting thread, I skimmed some of it. I've heard of these but don't think I've ever seen one in the flesh. What little I've read was not very good IIRC but I have an open mind.