The impressive-sounding horn speakers that a couple of you have referred-to were the Avantgarde Acoustics speakers from Germany, which were in the Globe Audio Marketing room, located in a big Salon on the bottom floor. It was Avantgarde Acoustics' amp and preamp also, as well as an Audio Aero Prestige SACD player, a Brinkmann turntable and the RCM phono stage from Poland.
Globe had installed drapes all around the room to kill most of the very bad echo acoustics, so the room sounded very good. Other big rooms that did not so this, including the previously-mentioned Lamm room, did
not sound good, as the high frequencies were bouncing all over the place, confusing the sound and irritating the ears.
If an exhibitor is going to drag a $150,000.00 worth of equipment to a show and spend a few thousand for an exhibit room, you'd think a couple of hundred bucks to sound-treat the room would be a no-brainer.
But maybe you're just supposed to love them and buy on their "reputation" alone, not the sound....
I heard a tiny, compact Denon system there (8th floor) - SACD player and receiver, hooked-up to a small pair on Denon mini monitors, that sounded better than some of the mega buck set-ups. $4,000.00 for the whole system.