Avantgarde. I've heard them several different times, and I don't know what all the fuss is about. Looks like something out of the movie "Barbarella" and sound like a big honky megaphone! Supposedly, amp matching is critical, but after hearing them on at least 4 different occasions, I couldn't wait to leave the room each time! The Classic Audio Reproductions (horns) driven by an Atma-sphere S-30 (30 wpc) totally blew away the Avantgarde for much less "moolah". Come to think of it, ANY other horns that I've heard sounded way more musical than the Avantgarde!