I had older versions of them, listened La Scalas extensively for years at a close friend and I still have Klipschorns as a second system. So, I think I have been through the heritage line up quite a bit (I also had their non heritage speakers, rf7).
I am very surprised to hear people comment on cornwall like that, unless the newer ones have nothing to do with older ones. It may be compact which is good but it is definitely not one of the best horn speakers on the market. That is a very strong statement. What makes Klipsch a legend is Klipschorns and deservingly so. That is the only Klipsch I would get if I want one of the best horn speakers on the market. If placed correctly and modded in the right way it can go head to head with most top tier horn speakers for sure and would still cost less. I myself have changed the Klipschorns midrange horn to Volti fc260 wooden horn, changed the xo with Volti's highest offering and added a time aligned fostex t500amkII tweeter on top.