I took an entire year to research my new audio system. I put many, many, hours into reading reviews and forums culminating in an actual all day audition of some of the top amps in the world. I visited with many very knowledgeable and experienced audiophiles. I even flew from my home in Iowa to Sarasota, Florida to audition amps. I auditioned amps by Pass, Gryphon, Naim Hegel, VAC Audio, Simaudio, and Luxman among others. I finally picked the Pass Labs INT 250 and couldn't be happier with my choice. I'm pairing it with some superb sounding Harbeth Super HL 5+ 40th Anniversary model speakers. I'm also running the INT 250 with an MSB Discrete DAC with dual power supplies and Roon Nucleus.
I can't imagine a better sounding similarly priced system. I'm sure there are systems that sound as good, but just different. I very, very, highly recommend the Pass INT 250. Mine is just now really getting broken in and is sounding sublime. I also auditioned the INT 60 and was similarly impressed with it.
BTW, the heat issue with Pass amps is, IMHO, totally irrelevant. I can lay my hand on my INT 250 all day long and never get uncomfortable. It's really a non-issue. It gets "warm" but definitely NOT hot. If you want to feel hot, lay your hand on a tube amp. That's HOT. An INT 250 might raise the ambient temperature of a small room a degree or two in warm climates. But so will some other amps. Especially tube amps. My listening room is about 12' x 27' and I don't even notice the room heating up any when my amp is on. But, after having said all the above, use your own ears and audition any amp you're interested in. It'll be time very well spent. Lots of great choices in amps and other components out there.