Amp for Focal Diablo Utopia Colour Evo

I use PASS XA100.5 with my Focals the class A amplification really smooths out that Beryllium Tweeter.

Enjoy the Focals they are a fantastic speaker when driven with the right electronics but can be ruthlessly revealing when they are not. 

Chuck 

Agreed that tube amps do well with Focal as do many class A ss amps. My limited experience with ss A/B amps has not been good meaning the tweeter is harsh and I find myself looking for ways to pull back the tweeter. This is not good because when you find the right amplification (personnel preference) that tweeter is marvelous. 

You might want to try RENO Hi-Fi as Mark offers a demo period and if you don't like the amp you can always return it. Pass also makes a couple of very nice class A integrated(s) if you are inclined to go that route. 

I am curious as to how you like you Diablos and what your previous speakers were.

Chuck 

Now I better understand your situation and not being able to try it out in your system in your environment makes it difficult. I would look at upgrading your preamp/streamer if it were me as the Primaluna is a very good power amp. Or you could switch out to an Integrated, Primaluna makes several models of tube integrated(s) and they should have a similar sonic signature to your power amp which you already said you like. Good Luck

Chuck