Those old receivers certainly were gorgeous. Honestly, I'd take just about anything from that era if somebody handed it to me. And, as it turns out, a few people did just that. On one such occasion, I was given a Kenwood KR-6030 because I commented on it in a customer's pet shop. Of course I wasn't actually looking to snag it; rather, I was just asking where it had come from since it was just sitting there, balanced on an empty tank and not connected to anything. Six months later the guy just decided to give it to me, since he figured I'd appreciate it more than him. He wasn't wrong.
Here's what one looks like:
Mine lacks the wooden side panels of this unit (I also believe that a full wooden case was available), but it's otherwise identical. It's also bigger IRL than it looks in this picture for some reason. Maybe I'm just comparing it in my mind with that Pioneer behemoth above. Anyway, it's 80 wpc. Not exactly a monster, but give it a pair of decently efficient speakers and it won't lack for volume in a medium large-sized room.
I've also got one of these (my own unit this time):
25 wpc. Same applies here as with the Kennie, except this time with a medium-sized room. Unfortunately, my unit is quite sick at the moment. There's lots of buzz in the output, which sounds like bad caps in the power section (it doesn't vary with volume). Also, I get a crackling sound on occasion from the right channel, which might be a bad transistor. I've retired it from service until I can acquire the knowledge and equipment to diagnose and fix what's wrong with it (or else find somebody who won't charge an arm and a leg to do it for me).