Synergy Horn with AMT

[Patrick Bateman]

I think this more proves what Patrick was saying. there is no gain on your horn at very high frequencies. it has some gain as you constrain the radiation angle a little further down, then heaps of gain in the upper midrange. (actual horn loading?)

obviously still useful. but its no the magic +10-15db gain over a massive frequency range some imagine it to be

That's right. It's the reason that old-school compression drivers look like this. They're basically trying to take the energy radiated by the diaphragm and concentrate it into a smaller aperture.