Looking to move to a Tube Integrated setup

@bigtwin I'd assume because tubes sound better. ;)

Think long, both allow you to try various tube types, which definitely sound different, Ayon is a beauty to look at, never heard one.

I see that you can bridge the Prima Luna into Mono, so the option to double your tube power is there, much easier to try using EL34’s lower output each side, which you don't need now, but future speaker change? That option make make it easier to sell in the future.

Once you pick which unit, then ask again about members various tube experiences. I never had KT120's or 150's, I got hooked on tube sound with EL37's, then EL34's for years, now I am happily using KT88's with a Cayin A-88T which came with 6550's.

Running cool for long life makes a lot of sense.

@jond You know the old saying around assuming..... Speaking only about my own experience, I too got the bug to move to tube equipment. I wanted to enjoy the better sound. I have owned the TRX-M845 mono blocks from Triode Audio of Japan, and more recently the REX 3 mono blocks from Balanced Audio Technology. After countless hours of A-B comparing, over several months, neither myself or anyone else who joined in could discern any improvement or really any difference between the tubes and my Hegel H30 SS mono blocks. Well that is not fully accurate. We all could tell the difference in the tremendous amount of heat the tubes put off. And I could tell the difference in cost as I fell down the rabbit hole of chasing the elusive improvements changing tubes promised. Got all that out of my system and will be sticking with the Hegels. In good conscience, and given the high quality of today’s SS amps, I would not encourage anyone to change to tube amps. But hey, that comes with a huge IMHO. Cheers.

Yes, better sound was what my ears perceived. Also true regarding the primaluna bridging, though the unit I’m considering has KT120’s already, and as my main speakers are full range and 98dB at 1 watt, I don’t really think I’ll need to do dual mono, though it is a nice option.

With your speakers you need to be looking at something Single Ended(1 pair of output power tubes),Pure Class A..If you listen to strictly vocal/elevator/pipe & slippers music the 300B is the way to go..If you listen to a variety of music then KT88/KT120/KT150/KT170 would get the call...There is also Single Ended Class A EL34 but I prefer the bass & mid bass of the Pentode tubes..
There are several manufacturers making such amps like Mastersound Icona,Icon Audio ST30SE,Unison Research Preludio,Rogers Audio 65V2 & the Lab 12 Suono Mk.II...