Thiel Owners

The ESL-63 uses (if I recall correctly) a cascading time delay crossover over concentric rings of the diaphragm to create a whole diaphragm motion with all points equidistant from the listener's ear. What brilliance!
"Walsh" - type drivers use bending in their method of creating the cylindrical column of moving air pressure waves. So bending is part of their basic system mechanics.

Discrete drivers attempt a uniform air propagation wave-front  via multiple driving sources, which must remain flat to engage the air mass properly.
Unsound - do you know if the Walsh-type driver actually produces intact step response at the listener's position?

So a question, where would Kef's Uni-Q concentric driver array fit into this mix?

There's some explanations of the Walsh driver characteristics at Ohm's website - https://ohmspeaker.com/technology/

Unsound maybe you found this.
With much info contained.
I would be interested in seeing how the driver is terminated on the edges so some polarity of the signal does not return into the path of the next uncoming signal.
Same thoughts on any of the Walsh drivers the inside and outside of the cone must react with some signal inversion. Tom.   https://www.bendingwaveusa.com/technology/

@tomthiel, As I understand it, though the Walsh driver is conical, the bending wave travels faster than the speed of sound, thus being able to produce step and square wave response indicating time preservation. The omnidirectional dispersion, while perhaps tricky for small room placement, is capable of charging the room rather uniformly. The original Walsh drivers were a difficult balance in that they required quite a bit of power yet could be damaged if overdriven. Modern versions claim to alleviate these issues, though extreme SLP’s still seem to be the forte’ of other designs, distribution seems somewhat limited, and they are not inexpensive. I have not heard any of these type of drivers in decades. I would welcome the opportunity!