Best integrated for my needs????


I've recently come into some funds, and it is time to upgrade my 2 channel system to something far more serious and enjoyable. First stop is here...

Current system: Extensive digital library (FLAC)/Tidal > SOtM SMS-200 > Peachtree Nova 300 > Acoustic Zen Hollogram II > Paradigm Ref Studio 40's. This system was relatively cheap to build and has been a very enjoyable platform cost/benefit wise.

About me: Love music, don't get enough time to just relax and enjoy, time for a change. Have worked in and around the audio ODM industry, so have had a chance to listen to some amazing systems over the years, and have developed some good relationships that I will lean on once I go to purchase (F&F). I listen to mostly Jazz & Classical at modest volumes w/ periodic need to turn it up to rock out a bit. My listening room is 12'x18', with the system facing the shallow side. Prefer a bit of warmth vs totally neutral sound, but abhor muddy or noisy digital reproduction. My preference would be towards a very quiet, more neutral, fast and clean musical experience with a defined sound stage. Not looking for perfection, but want to achieve 95% w/ an easy listening (no fatigue) experience.

Budget: $20k, Leaning towards a top notch integrated as the core of my system. Will pair DAC, Speakers etc. based on the integrated I choose.

Comments/Questions on integrated's:

So I've spent a bit of time reading about the current generation of Integrated Amps (all in ones). From my reading the Luxman 509x, Accuphase E-480, Gryphon 120/300 seem to resonate. Curious about Devialet though I'm not quite sure I understand the concept, and Hegel seems to be something I should also consider.

1. What if any manf/devices, am I missing from this list?
2. What is the deal with Devialet. Is this something I should consider, if so which model?
2. Which of these is likely to be most reliable and present the best possibility for future proofing (thinking 5 year time horizon). Seems some are concerned about Gryphon's long term reliability?
3. Best bang for buck?
4. Given my preferences, and assuming I start with the amp, which system will be easiest to build around in pursuit of the musical experience I want to achieve? Most flexibility?
5. Lastly, given that it is essentially impossible to trial systems in the age of covid, is there a "safe" choice here that I can proceed without trialing, knowing that I can tweak around the Integrated with high probability of success?

Am I missing anything?

Thanks all!
ratbastrd
The Pass int 250 is a great choice with power to spare. You really need to listen with your speakers to find the sound you'll enjoy.
sangbro has got it. Luxman or Pass.

As you mentioned the Luxman 509x... I have it and it's a wonderful integrated. I listen to everything, jazz, classical, rock, hardcore punk, various ethnic music, electronic, and more. It is both clear and bright, yet warm and smooth. It is neutral while also seamlessly meshing with the recording it's playing in a way that suits it best.

I love horns and have Cornwall IV's that pair perfectly with the 509X. Used or new, they'll fit within your budget.

Because of COVID, my budget was tightened (started building system in February) and so currently using a Bluesound Node and Cambridge Audio AXC35 CD player as sources. Neither is high end but are still quality enough that my system delivers much joy.

There's so much great gear out there, try before you buy if possible. But most recommendations here should help give you suggestions to try.
@ratbastrd  i second the norma integrated but i would start with replacing the speakers first, then sell off current pieces to increase the budget some and go from there.
I would suggest starting with some excellent speakers and there are quite a few. The Tannoy Prestige speakers are very nice and beautiful also, QLN Prestige 3 are very highly rated. As far as excellent integrateds either the Raven Audio BlackHawk or the Raven Audio Osprey are outstanding as is the Moonriver 404 Reference amplifier, but a really nice amplifier can only do so much it's the speakers that do the heavy lifting. 
Raven Audio is a very safe choice as they offer 45 day no hassle return, they have some excellent lower priced speakers too, the Celeste.