I met this angel at a gramophone museum in South Korea. It sounded really good and had a stadium-like sound.
I'm guessing they're vintage. I had this pic on my Instagram (@dohyun85570) for a while now and I never found out what model it is. Can you audioholics find out?
There were two of these with dedicated monoblocks for each. You can see that a horn speaker is place left of it.
The museum had a lot of those.