Integrated amp recommendations for harbeth 30.2 XD

I own M 30.1's.  I've used an LFD NCSE with the 30.1's - fantastic sound but - no remote.  Sold.  I moved to a Luxman L-507uxii.  Had the Lux for a couple of years, very good with the Harbeth's, not up to the LFD standard but very flexible and nice sound.  Also has a good MC cartridge stage which I need for my system. 

For no good reason (sound familiar?), a few months ago I sold the Lux and bought a Pass INT-25 and supplement with a Sutherland 20/20 phono stage now.  The Pass might be an end game integrated for me.  I was familiar with Pass but from maybe 20 years ago.  The Aleph 3; a fine amp.  Can't remember why I sold that one either.  Damn fine amp.  

In my particular situation, sitting maybe 10 feet from the Harbeths with the Harbeths about 2 feet from the rear wall, the INT-25 is as good an amp as I've experienced.  I listen to lots of acoustic jazz, cello, violin, quartets, piano, classical guitar, lots of live, well recorded music streaming from both vinyl and Qobuz.  It's a special integrated.  

Newton if you like the sound you're getting with the Aethos but want to improve on it the Rega Isis seems like an obvious choice. If not as asked above what are you not liking about your current setup?

NAD M33. It’s got 200 very clean distortion free watts into both 4 and 8 ohms, an amazing neutral sound, comes with Dirac Live room correction, both M/M M/C phono inputs, and BlueOS streaming. Product of the year from a couple of different reviewers. I love mine, drives my 4 ohm speakers easily.  Only $5k.

I haven’t personally used the devialet integrateds with my 30.2s, but since they have utilized software that is capable of adjusting the sonics specifically to the 30.2 (using their Speaker Active Matching capability), I am very curious. I’ve heard the expert 140 with different speakers and was impressed.

I have spent considerable time with the following combination of electronics driving HARBETH, and could easily live with it without the least remorse. Especially if you are into jazz and classical. 
A pair of PRIMA LUNA EVO400 MONOBLOCKS, equipped with a matched set of KT150's. Driven by a PRIMA LUNA EVO 400 PRE-AMP.

I'll say no more, but if you have the funds, I strongly suggest arranging an extensive demo. You won't be returning anything. 

Solid state ??- - - - I have always "worshiped" PASS LABS for many, many reasons. Can't afford that.? Take a listen to HEGEL.