I listened to a pair of Avantegarde Uno XD speakers today in Harland Netherlands...I have been curious as to how a round horn sounds compared to a rectangular, or square horn like my old JBL 2360a, or my new Klipsch k402. All I can say is I was not disappointed! The showroom was maybe 12' x 15' with about a 8' ceiling, and untreated. They were using a Niam preamp, and media player with a tube amp the dealer made for himself, and makes for customers. It filled the room spectacularly with a nice deep bass, and the mids, and high were just right for me. They were not too sharp...just about the perfect match IMO. I only had a few minutes to find out about the system, and listen before my wife came in to get me. If you ever get a chance to hear a set...do your self a favour and give them a listen!
https://www.avantgarde-acoustic.de/en/products/uno-series/uno-xd.html
https://www.avantgarde-acoustic.de/en/products/uno-series/uno-xd.html