You know, this thing about directivity and imaging still has me confused. My understanding is that more directivity means less sidewall reflections, which in turn produces better imaging. However, highly directive sources tend to produce a very small sweetspot. Diffused sources create more reflections which hurts imaging. But if the room is good, it shouldn't be a problems, and can in fact produce a larger sweetspot, provided frequency response is uniform. Am I close?Anyhow, looking at the diagrams on audioheritage, it seems pretty easy and cheap to mock one of these horns up. The only difficulty is getting a set of throat adaptors. If I can get a pair of adaptors inexpensively, I'll give these horns a try.
Gar.