Take me back!
Reading your review I kept thinking of a letter I wrote Paul in my previous life and the kind reply he sent me. And yes, along with that kind reply he enclosed a Gothic-script "Bullshït" button! My goal was one day to afford a set of Klipschorns, but though I finally got the bread I never got the clear wall and corners they need for proper tuning. But along the way I absorbed Paul's salient points about horns. First, they're super-efficient, which you allude to when you remark at how easily the RF-7 IIIs can handle anything a source can throw at them. Second, you mention how horns are criticized for harshness. Well, the other side of that coin is presence.
Anyway, have you had experience with Klipschorns? How do these RF-7 IIIs stack up to them?
Sony 55W905A, Dahquist DQ10 (x4), BW sub, McIntosh MC-2150/2200, OPPO BDP-105D