I haven't seen anything noteworthy recently, but did run across some neat stuff when I knew just enough to be dangerous.
My high school had, as of the early 2000's, a pair of industrial La Scalas. They looked intriguing but sounded pretty terrible. I now know this was due to the fact that they were a) being used in either a gym or a concrete cafeteria any time I experienced them, and b) being driven by some big Peavy amplifier at way too much volume, and c) usually playing whatever crap was popular.
I now own the LS-BL variety, so I know how good they can be
They also had some multi-cell horns (disconnected) out at the baseball field. I kept thinking about finding out who to ask about relieving the school of that old garbage, but never did. I don't know if they are still there, but I would doubt it.
I was at a bar recently that has some in-wall speakers that looked to have been installed in the '70s if I had to guess. I noticed the fairly large brown cloth grilles integrated with the wood panels on the walls, and that they sounded pretty good compared to the usual restaurant/bar systems. I have no clue what they actually are.
Still keeping my eyes out for good stuff in the wild.