Point/Counterpoint...
Completely disagree with post #39, which is perfectly fine as all of us are just expressing opinions and preferences even if it might sound like the stating of facts.
Hardly a Mac hater, I owned nothing but Mac for decades, mostly their SS offerings starting from the 70's and it was the best of what I had heard. Got into tubes in the 90's and had their 275 and C22 even their MC2000. Eventually sold them as 300b SETs became my passion and still is.
In the early 2000's I bought a 10b which I fell in love with. That led to a 7c which really surprised me when, out of curiosity, I used it to drive a new Pass XA.5 amp in my main system which uses a "modern" CJ ART preamp. I can see why the 7c has become so sought after and their price has kept climbing. Well, that led to an 8b to complete the vintage trifecta. I alternate listening between that vintage system and my modern system and each one has something special about it. More recently, through some good fortune, I was able to get a mint pair of the 9 monos that had been on my bucket list. They are something else. It's been about 5 months now and I still get excited every time I turn them on. All in all, a very nice musical system that is/has given me countless hours of enjoyment.
So, "IMO"...I rate the Marantz 7c, 8b, the 9's and 10b as some of the best ever. They sound better than much of the newer, more expensive gear I've tried. That's my story and I'm sticking to it.