The Cornscala (as I recall) began as an attempt to take the best of the LaScala (K400/K77) and mate it with the best of the Cornwall (K33....which is also used in the LaScala except in a direct/radiator format verses horn loaded)
You might note that Bob now has other mid & HF options available.
It might also be worth noting that some folks say the CornScala is the worst of both speakers, not the best.
Keep in mind that 'if it moves, it distorts' therefore the K33 in the Cornwall will offer more distortion than the K33 in the LaScala since the LaScala is horn loaded. (yes, the Cornwall / Cornscala will probably dig deeper)
So you have the highest distortion generator of the Cornwall (direct radiator woofer) mated with what some folks can't get away from fast enough... the LaScala midrange & tweeter (specifically the midrange I think)
Bob has now altered the design a bit and I think has one version that has a 2" throat HF horn, I think it's a 2-way design??
Bob's stamped woofer is supposed to be the identical woofer as what Klipsch provides as the K33.
(all above is merely my understanding of things)