EV interface D's
I had many Beveridges back in the '70's.My list is probably not quite in line with the OP's stipulation that they should be 3-way speakers, but in no particular order:
Fulton J Modulars
Beveridge SW2 (2 way)
Carver Amazings (2 way)
Klipschorn
Best Regards,
TerryO
To me, the 1970s belonged to two speakers:
1. JBL L100
2. Bose 901
If I had to choose between the two, the JBL's win, hands down. A nice set will run you about $400.