You may take a look at equally German-made, well-regarded horn speakers Odeon at www.odeon-audio.de, including an English version. They have speakers that start with 2000 Euros per pair for the Fidelio, I do not know about US-distribution
Speakers similar to Avantgarde horn
I was just mesmerized when I first heard them. It was the closet of a live sound I've ever heard. The only problem is that because of their size and shape, they probably won't fit in with the rest of my room and furniture.
So I am looking for a similar pair of conventional speakers that have the same type of sound for future purchase.