I was with a friend that was very interested in these speakers, so we had a private after-hours demo for about a half hour and listened to a number of different types of music.
I am generally not much of a fan of horn speakers, so keep that in mind.
The Triangle Art speakers sounded very nice on many music genres, particularly instrumental jazz and classical. They did ok with male vocals, but I really didn't like the way they handled female vocals. The voices sounded very unnatural to me. I don't really know how to describe it, but they sounded kind of honky on this material.
Deep bass was not as tight and natural as I like either, but this could easily have been the acoustics of the room.
My friend decided to pass on these, even though these were one of the speakers he was strongly considering (I think based on reviews) before attending the show.