So I just bought a Hegel H390 and

The salon 2 was more than my h360 could drive otherwise the integrated has been great. Streaming tidal with a pc or iPad was awful and I bought a dedicated streamer and now the onboard dac is good, yours is better, more resolving. Sonus faber might be a good match, the magico A3 is a tested match, kef uses it to demo the blades but good luck finding them for 10k....Dynaudio c60i, C4, Your new amp isn’t voiced towards bright or dull speakers but they will show your speakers true nature so make sure you know what you’re buying.

I've driven the usher be20dmd, persona 7f, kanta 3, VA strauss, salon 1 and salon 2 and currently the Kef Blades and the only speakers the H360 couldn't manage were the salon 2. Unless I can score a H590 I'm set.

Each generation offers another level of resolution, I remember the h190 being a bit more resolving than the 360, but I needed the power and the 390 wasn’t out yet. Can one of you guys tell me if the step up to the h590 is worth it? 

Thanks for the reply. I really enjoy how my blades sound with the h360, but I can't help but think there's still more to hear.

Excellent choice. I got to see the ref 5 and blade 2 a couple weekends ago and the ref 5 is an impressive speaker.