Amp recommendation to drive Thiel 3.6 speakers


Hello everyone,
My first post here. I''l get right to the point.
I am looking for recommendations for suitable power amp monoblocks to drive a pair of Thiel 3.6 that I have had for 20 years, and which I intend to keep. Let me describe my current system.
Speakers: Thiel; 3.6
Power amps: Manley 250 classic monoblocks (tube)
Pre-amp: Audio Research Reference (tube)
Phono-pre: Audio Research Reference 2 SE (tube)
Turntable: VPI/SME, and Linn LP12
Digital: Audio Research CD3

I am looking for recommendations to replace the Manleys. From what I know, the Thiels are a difficult load.
Thanks in advance
pyma6
I also think you made some good choices, especially the excellent preamp!  Enjoy!!!
The JC1's are in transit, and it remains to be seen if sonically, they fit well into my system. An Audiogon guy who had pre-owned JC1's and was now selling a Luxman M-900U commented that the JC1's and "cold and clinical".
On a related issue, I have owned the CS3.6's for so long that I lost touch with other speaker developments.
What are some of the best speakers that can be had today (used) for under 10K?