Building new system starting with power amp. What would you choose ?


This is not how it usually happens, but what if you simply must have a particular amp and then move with upgrades in both directions? Let's assume that the only source will be RTR deck, so no preamp will be needed.
The price range..how about $15k new or used ?
This is a hypothetical exercise, I am personally not prepared for that yet. However, it would be, theoretically, perfect minimalist audiophile set-up. 
I myself would probably choose either Lamm monoblocks or Gryphon stereo power amp, both used of course.
inna
The only amp I “simply must have” is the one that works best with the speakers I love.  My audio DNA just don’t work the other way ‘round.  A couple that might get me thinking a little though would be the Valvet A4e mono blocks or maybe a Raven tube amp.   
If my room changed and it required changing speakers, I’d probably change amps to match my new speakers.
@andrewkelley 

the Magtech is amazing!
will drive any speaker you hook up!
  One of the best kept,secrets in audio. 
 Enjoy one of the best amplifiers made!
im glad I could help.

 Enjoy the Magtech! A lifetime of perfection!