One speaker comes to mind when you say "point source", and that is Tannoy....I guess you can include KEF as well, however they are not the same design as tannoy. Tannoy was the first and is the best, since the origination of the dual concentric driver in and around I believe 1947.....it's what really put Tannoy speakers on the map....
https://www.tannoy.com/our-story.html
https://www.tannoy.com/our-story.html