Close, but no cigar ...

Whenever I get amp-upgrade fever there are a few brands/models that always make the top 3 or 4 on my list. But for one reason or another, they are never the finalist. It is definitely not a case of whether I think they are inferior in any way compared to my eventual choice. I know I probably would have been equally happy with either one, but honestly I don't know why I never end up buying them. So here's my list of the also-rans (but not inferior) that I would love to own some day. By the way, I'm only including amps that are within my budget ($4-8K new or used) and in close range to what I usually end up buying ...

Pass Labs INT-60 -- this was a top contender, but I just couldn't find a way to audition. Then a used Luxman 590AXII popped up and I went that way. However, I still wonder if I should have gone with the legendary Nelson Pass' design. 

Hegel H390 -- this is another amp that seems to get a lot of love on the forums. Would love to own one some day. I didn't pull the trigger because I had concerns about Roon integration (a must for me).

Ayre AX-5 Twenty -- another one that gets a lot of respect. New is out reach, but I've seen used ones pop up for sale every now and then.

McIntosh -- I'm not listing a specific model. This is probably one of the most iconic brands with unmatched pedigree and history. There have been times when I was tempted to buy one of their integrated amps, but always got cold feet. I know Mac doesn't get a lot of love on these forums, and that's probably a major factor that it never makes it past the finish line. But I feel that it's an itch I have to scratch some day to see what the fuss is all about.

So what are the top 3 or 4 amplifier models that you would love to own some day, are within reach budget-wise, but just never seem to end up in your music room?

I’m really intrigued by the Belles Virtuoso integrated. Dual mono design and 200W per side. Would love to hear from someone who has it.
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Just mention the word "McIntosh" and the naysayers hit the floor running! No other brand on this forum seems to be hated as much. +1 with Stereo5. There are other forums that do love "Mac", so that's where I spend my time; the naysayers, stay here and rave on!

WHATEVER you get, spend time to optimize room/speaker.

After that, stay off audio forums to enjoy music.