Does anyone have a rough idea when the Japanese amp/receivers started showing up on these shores with proper speaker binding posts (instead of those horrible "stick a bare wire in " terminals)? I guess it would be in the early 80's, but I'm not sure (I had US made stuff with binding posts in 1975).
I mean it has regular five way binding posts. Only the originals had a plastic barrel molded around a metal interior. I replaced them with metal barreled posts. Look up the Sansui BA-3000. Pictures are all over the internet.
Into the middle to late 70's many higher quality amps (McIntosh, Marantz), not receivers, had barrier strips for outputs. Some receivers, notably Pioneer used polarized plugs. Overall, I doubt there was any consensus. Crown, based on the 2 D150s I have used binding posts. Many others, I just don't remember
Well my SAE 2200 power amp from 1976 has binding posts and all the American amps from that era that I have personally seen had them, but it appears that most Japanese amps didn't get them until the very early 80's or so.
Spinnr, Binding posts allowed the cables to be properly "gripped" with either the correct tight fitting or locking banana plugs, spades or bare wire pushed into the hole and the nut tightened. Why do they call them 5 way?? I can only think of 3 ways or perhaps 4 if you wind the wire around the post and don't shove it through the hole.