Preamp SS to match class D amp

I know AVM as I live nearby the Germany, probably the new products are better but previous ones not such big audiophile reputation at least in Europe and you have to add modules in the pasts taking up the price. Wondering if Pass or Ayres would fit just the analog part on a decent way, they have a lot of analog input.

Surprising to hear that as the US Trade Pubs like The Absolute Sound and Stereophile love AVM.  I have personally done some A/B comparisons between the flagship Ovation MA8.3 monos and other amps and was shocked at how good they sound.  

They still do a lot of modular designs but their "streaming preamps" are not modular.  

For just analog, Pass or Ayre might be good choices.  Need to look at impedance matching to make sure they are compatible to get the most out of them.  

Going through forums people ask advices only on tube pre amp to combine class D amp probably for the fact of the colorations of tube and some sterile class d amp they own.

Tube preamps are not used to add colorations. They are used to avoid them as many solid state preamps sound bright. Most solid state amps do too, but class D is altogether a different animal and does not have the same artifacts as traditional solid state (so they don't usually sound bright). In fact some class D amps are quite neutral- far more so than traditional solid state. Since solid state preamps have lagged behind class D in this regard, that is why many people resort to tubes.

To be clear here, when I use the word 'neutral' it encompasses 'musical' as well, since we are talking about low distortion that is consistent at all frequencies (traditional solid state tends to have increasing distortion as frequency is increased). When distortion is **properly** controlled then the circuit will be both musical and neutral.

If you must go solid state, I would be looking at either a Benchmark or Pass Labs. 

TEchnically, most any SS pre-amp should match well with most any SS amp including Class D. So that is not a factor to be concerned about when choosing a SS pre-amp to use with Class D.

Where it becomes an issue is with tube pre-amps that typically have higher output impedance. Not all SS or Class D amps have high enough input impedance to work optimally with a tube pre-amp. Somewhat muddled sound, not clear and articulate is often the result.

I have Bel Canto ref1000m amps with Arc sp16 tube pre-amp in my main system. I also have Bel Canto c5i integrated amp in another....no tubes there, all digital, only thing needed is an external streamer. Amps are similar but sound is much different mostly tonally which I would attribute mostly to the difference between the pre-amps used with each and the DAC also to some extent. The best description of the c5i no tube sound is more electrostat like....more airy and neutral perhaps and also very clean...dead silent. THe tube preamp combo is very similar but the ARC pre-amp adds a touch of midrange warmth and sparkle. Which is better would come down to largely a matter of preference. I am strongly considering getting away from tubes altogether when the time comes to replace the ARC sp 16. Something like the new Benchmark pre-amp has a lot of appeal to me.... also dead quiet and adding nothing much of its own by all accounts so far. Plus I Iike Benchmark’s no nonsense, R&D based approach to product design in general. Also can’t go wrong with Bel Canto in my mind. But the Audio Research  tube pre-amp does sound really good......