late to the party but I was thinking of driving there to hear them as well. I have to get moved first and of course covid has to die down. Some of his speakers look pretty great!!
Tekton Polycell15
103db made with a different array which is more like a horn or waveguide. 15" dual woofers. He has it as a pro audio product. Seems ideal for flea-watt home use as well.
http://www.tektondesign.com/tekton-pro-audio.html