Hey George, First I have to say if you get the chance to cryo your equipment run don't walk!

The Radials to me are truly magical at volumes of 90db or lower. I don't think there is a speaker that can beat them.
I am going over to a friends house hopfully today with my amps and DAC ( Dodson 2 1 8 ) and we are going to hook them up to is K-Honrs. This will be the final comparison for me. I may find the horns to sound bad after listening to the Radials for a month now ??? But you know how it is I remember all the good things the K-honrs did and probably have forgotten the bad points.
For 90% of my listening the Radials are GREAT, the only issue I have is when I what to hit the volume, turn my amps to 11 (spinal tap) LOL IMHO the speakers fade quickly

Bob Z has spent a lot of time with me on the phone (thank you Bob) and we have talked about adding a WO or WO32 to releave the Radials at about 50 hz but I am starting to think that would be a waste. They sound wonderful down to about oh I would guess 35 hz, as long as you don't turn them up to high.
Audio is a journey thats for sure and we all take different paths. The most important thing is that we enjoy our journeys. I will report back once I have heard the K-horns again. All the best, Guy