@johnk, 1st, I am a novice, with horns, compared to you. Now, with that out of the way..........As much as I enjoy large horns ( as my Klipsch Pro example above ), I need to disagree on the fact, that many of them, for me, do not work in a smaller room, and this, is why I have always stated, we are all different, as our listening tastes are concerned. The truth is, I do not want to be " inside " a piano ( using this instrument as an example ), and this, I find, is exactly what the presentation of a very large horn, in a small room, replicates. The other part of this, is coherence. I am very critical of hearing the transition of 1 driver, to the other ( the Altec 19, being an example of something, you and I have disagreed on ). BTW, it is all good. My listening experiences of this ( with much time spent with Avantgarde Acoustics Trios ), owned by a good and close friend, could not get them to work, in a 9 X 12 room, no matter what we did. Truthfully, my buddy liked it more than I, as this was his 1st foray into horns, where, I grew up with horns. I simply, like some distance between me, and them. This is no different with other types of loudspeakers, I might point out. You can always accommodate a smaller speaker into a too large of a room, simply by changing the listener position, but, and again, ime, not the other way around. If a speaker cannot work into a proper sized room ( again, for me ), I might as well be listening through a headset. YMMV. Be well, and enjoy.