100% agree on the videos.Fair enough, Peter. That threads digress into other topics is natural. My own system thread has digressed too various times, at some point even into discussing vintage speakers , which I enjoyed. Even in the face of apologies by others for the diversion by the latter topic I did not take steps to impede the momentum until it faded on its own.
Personally I would feel more comfortable starting a thread about SETs/horns if I had more experience with both (I have some experience, but it is very limited). I am just curious. Certainly from posted videos I cannot gather much, they all sound just bad in my view. My system sounds 10 x better than any of those videos -- make that 50 x better -- but what do you expect from iPhone mics and A/D converters, and the YouTube compressed digital format?
The great thing about where you guys live is the ability to hear lots of them within a few hour circumference. Old Forge, OMA, Jeffrey Jackson, Jeff Catalano, In Living Stereo, Viking, etc. Draw your own conclusions.