What 50wpc or higher amps have a totally different sound from Pass Labs, in a good way?

Agree with erik_squires. I’ve owned both Ayre and Luxman products. Neutral, uncolored, clear, natural sounding. It’s a matter of taste and matching to your other equipment, speakers and room. 

There are a lot of them in this thread:

My Long List of Amplifiers and My Personal Review of Each! | Audiogon Discussion Forum

but it will take you a while to read it.

@decooney its hard to say what I would rather hear from an amp that would be different from the xa30.8.  Mostly curious about very different sonic profiles that are well-enjoyed.  I really haven’t tried much, so curious where a thread like this leads.

Ayre, Luxman are intriguing, for sure. I’d probably not like the brighter solid state stuff, personally. Maybe fuller, weightier, denser?

I just picked up an octave v110 kt120/kt88/el34 integrated to try out that flavor. So far, it’s different... still good... still warming up, going to tube roll a bit.

The pass is just a great amp.  But there must be unique magical Sonics elsewhere too.

@tomcy6 ive perused that thread... will look deeper...