Need a modern Class A monoblock, preferably half or compact chassis

I am familiar with Class A, the sound fits my ear.  I like the reliability of SS and haven't heard a D amp to pique my interest.  

atmasphere, name or show me a link for three to consider, I am not against the technology but so far none really seem worthy to pursue.  I did contact one mfg. recently on their brand new product... no response

I don't have access to a local audio shop so I am reliant upon reviews, reading between their lines, or excited owners stating this is the best ever amp ever, but mainly the major audio show best rooms generally do not include Class D in their set ups.

Finally, were I to make a change to D it would make sense to have speakers that were developed with the technology... until someone demonstrates superiority, it is too early to begin consuming GaaN chips in metal containers.

You should read reviews of some of the newer GaN amps if you haven’t already and specifically Atmasphere and AGD for your price range.  Many people have let go of their prized Class A or A/B and even tube amps for these and several have termed them “end-game” amps.  If there’s a trial period for the Atmasphere GaN or AGD Tempo di GaN amp I think it’d be well worth your time/energy to do so, and I believe both are upgradable so as new/improved amp modules are developed you have that nice option if desired.  Again, read the reviews — these are not your father’s Class D amps so try to keep an open mind.  FWIW, and best of luck.

I have not heard the Atmasphere and AGD GAN amps but have owned 3 other GAN amps that I liked a lot. Only issue for me was the limited power on the 2 amps I owned. My speakers are not easy to drive. The third amp, the PeachTree GAN400, had enough power but it was a good amp for the price, not great (used $1000). The other GAN amps I had were modded and were very good.

However, the Class A amps I have had were better in power and sometimes sonics. The ugly looking KRELL DUO XD lineup, the latest CODA amps, and even my Schitt Aegir. The KRELL is very similar to the Westminster that was mentioned earlier. Other than the Aegir the Class A amps I have owned were not that hot to the touch.

I have four amps:

Class A Pass XA25

Class A/B Akitika amp kit build

Class D DIY Hypex based amp (a loaner)

Tube monoblocks Quicksilver mono 60's.

It is a LOT of fun switching between amps. It's not ambivalence, it's variety. Add in changes to preamps (tube and SS) and there are a lot of combinations to try.