Thanks for the list Wisnon. I have the Boenicke W8SE+ in my house right now. They are excellent, but not in the same league as the more expensive speakers I am looking at. I want something truly full range.
The Rethm, Albedo, Klanwork and Heil are all good speakers, but not truly full range and not in the same class as the other speakers I am looking at. They are good no doubt. But don't provide the complexity, nuance, detail, refinement, dynamics and scale I am after. The Kaiser are truly full range, but require tons of space off the front wall because of the multiple ports and drivers on the back of the speaker. And I find the Kaiser overly bright at times.
The Micro One is also great. But even with more low end its not in the same class. It will be a giant killer at $8k though. And Jonathan Tinn is a truly good guy and makes amazing product!
I have only heard 2 or 3 speakers at any price that compare with the Marten Coltrane Tenors. And only the $105k Kharma Midi Exquisite S has the petite footprint that the Tenors do.