@tektondesign I never said that the Pendragon wasn't a good buy for most listeners. It's price as most Tekton speakers are in the more affordable to even inexpensive range. That Albert Von Schweikert complimented your design does not indicate that his perception that they were anywhere near his quality of speakers of which I have heard half a dozen from $4K to $325K and own one in the middle as well as my best friend's lower end model.
The $30K speaker is a whole different subject. Mr. Von Schweikert did NOT hear that one. He was commenting and probably complimenting you on your affordable speaker line.
I don't know ANY speaker manufacturer who would or could take a multi-driver dynamic speaker and simply change it to perform the "same" at 2, 4 or 8 ohms. I would greatly appreciate how that is electrically possible. Or are they receiving different sound from each different impedance speaker?