AKG
BOOMERSAURUS
They are not "vintage" era but rather current offerings that just might fit your bill:
They come in various models: DEVIALET PHANTOMs
Crazy efficient :101-105db and deep bass
Check out the specs
Check out the cool "Treepod" stands in the OEM accessories link.
https://www.devialet.com/en-ca/phantom-speaker/
https://www.wifihifistore.com/news/?offset=1485536300626
https://www.whathifi.com/devialet/gold-phantom/review