Amp recommendation to drive Thiel 3.6 speakers

^A worthy consideration.

Not sure I’d spend upwards of $10k to power 3.6es (and I do think they’re great speakers), but what do I know?  The Clayton Audio M200s will drive the hell out of ’em but not sure how they’d fare on the WAF scale.  The S100 might be a little more palatable.  Thiel used to show with McCormack a lot back in the day, and there’s a DNA-500 listed on US Audio Mart for $3300.  Or, somebody just listed a pair of DNA-1 monoblocks up on eBay you could buy and have Steve do full upgrades and still be closer to $5k all in.  Personally I’d do the latter.  FWIW, and best of luck. 

Update:
First off, thanks for all the suggestions, thoughts, discussion. It was helpful.
I ended up buying a used pair (recent build, 2 years ago) of Parasound Halo  JC1's, which are on the way. I hope I made the right decision. According to specs, they have enough power to drive anything down to 2 Ohms, but keeping fingers crossed that they will sound good.
In addition I upgraded my pre to an ARC Ref 5SE. So hoping that the Thiels will finally sing.

Now, I have for sale the Manley 250 monoblocks (I checked tube bias yesterday and they are all on), the ARC Ref 2MkII pre, the ARC PH3 Phono, and a Transparent Ultra RCA 1m interconnect cable.

pyma6 OP
I ended up buying a used pair (recent build, 2 years ago) of Parasound Halo JC1’s

Good choice for these speakers, have the JC1’s in high Class-A bias mode at your initiation listen.

And your PH3 has 71db!! of gain, so you could combined with the JC1’s very high gain and 100kohm input impedance, use a just a simple Passive Pre amp, as you have all the gain you’ll need even from the PH3 let alone even more from digital sources.

Cheers George

I also think you made some good choices, especially the excellent preamp!  Enjoy!!!