Got a new vintage receiver in, a Sony STR-6060F, had it fully recapped.
This late 60's Sony receiver has a reputation for being tube-like, so I compared it against both a fully recapped Marantz 1060 and a Fisher KX-100 tube integrated on Vandersteen 2CE Signatures. Thought I'd post my note here:
First: Sony 6060 vs Marantz 1060:
The Marantz 1060 is more polite, a bit fuller/warmer, the bass maybe a touch stronger, and has a somewhat less forward presentation (maybe 5th row).
The Sony 6060F is more dynamic, more forward/live, seemingly a bit more detail and maybe tips up a bit more toward higher mid/treble than the Marantz's upper bass/mid 'emphasis'.
You could say the Marantz has a prettier, more forgiving, but at the expense of some dynamics and transparency/texture.
To my ears, the Marantz is actually more tubey sounding if I think about the stereotypical tubey characteristic of softer, prettier, more mid centric. That's not to say the Sony isn't tube like - it's just less so relative to the Marantz.
Next: Sony 6060 vs Fisher KX-100:
They're more alike than different. If Sony is a 1st row presentation, Fisher is maybe 3rd. Not recessed by any means , but not quite as forward. Both have very good detail and transparency.
The Sony sounds louder at the same SPL level - the cymbals, brushes, high hats,etc are just a bit more apparent and forward - even though I volume equalized using an iPhone SPL app. The Fisher seems a bit more refined and smooth, but without being veiled or laid back on an objective level.
If the Marantz is at one extreme and the Sony are the other, the Fisher is probably 2/3rd toward the Sony on the same scale.
So both are very good - if you like forward, max PRaT, etc, you might prefer the Sony (at least on the Vandersteens), but on more potentially forward speakers (like Klipsch Fortes for example), one might conceivably prefer the Fisher as it could tame a bit of the brightness/harshness one can hear at times with horns.
All the listening comparisons were done with only 3-4 CD's: Kind of Blue, Diana Krall, Abbey Road, and a Ray Charles duet CD. Probably more tame material that many might use, but I think Abbey Road presents enough of the rock element to not have my comparison be totally soft/jazz/vocal material.
In summary, I enjoyed all three, and it all ultimately comes down to preference of presentation and synergy with speakers.