restorer-john said:
delihaus, be careful with generalisations about the big sony with meters (the tan77es) and comparing it with yamahas of the same era. The yamahas were at the time, poorly made, lightweight by comparision and used inferior components all the way through. How do I know? Because I have pretty much every piece of the top 1989/90 ES lineup and quite a few of the same years lineup from yamaha....
While I couldn't honestly talk down the Yammies here (I own vintage Yammie, and like them), rest assured I'm closer in opinion to you about build quality and the like with the Sony ES (I own vintage silver sony and some Sony ES).
The Sony ES build quality is great, and as I've said, parts used are good to excellent.
As for ths Sony TA-N77ES, it's a beautiful amp, and plenty strong, but the Yammies were being made stronger, with more headroom.
This doesn't make the Yammies worse or better (feel free to come to your own conclusions about that), only different. In my opinion.
If I was looking for refinement, a warmer, more colored (and to me more musical) sound, and great build quality, I'd choose the Sony ES over the Yamaha.
If I wanted brute strength and more ample headroom to drive a demanding load, with zero coloration bordering on the clinical side (not a bad thing, if that's what you want), my choice would be the more muscular Yamaha.
Now, all that said, remember, like Kenwood with the 700 series, Yamaha also made some brutally strong and well-refined pieces too.
Member Mark (B, I think), has got I believe a centennial edition that, quite frankly, looks like it'd smoke the standard Sony ES line. The thing is massive, and beautiful, and really well-built.
But Sony could counter with some of it's Japanese or European market only rare pieces, pieces that I'm only vaguely familar with, but are true statement pieces too.
For Klipsch, I'd generally look at the Sony as a better match than the Yamaha.