Solid State Power Amps

I’ve used McIntosh MC 611 600 W mono amps. I think a pair goes for 15,000.

In the solid state world these amplifiers perform extremely well. And amplifier is reliable.

If I was planning to spend more money I would definitely pursue a tube amplifier and I’m now using one but the 611 is very good

I would look at a VAC tube amplifier and maybe one from Conrad Johnson. I would definitely consider upgrading your pre-amplifier as I read up above. Spending $25,000 for an amplifier is pretty serious and it’s deserving of a higher level preamplifier

Have you considered buying a puppy?

@audphile1 

+1 Pass X260.8 monos

This is the best amp I have ever owned.  I have electrostatic speakers that are difficult to power correctly and the 260.8 makes them sing.  

Hello sgordoxyz!  You have chosen well regarded and well reviewed power amps. My I suggest an less expensive alternative.  Starke Sound makes great amps and low prices. I have 5 of their AD320-4 amps and one of the new replacements, the Fiera4. I drive everything from Linkwitz XL521-4s to Magnapans with them. They sound wonderful. 200 wpc, four channels (perfect for the LX521's. Perfect for electronic crossovers feeding a 2 way stereo pair.) The have a decent return policy. I think you will be impressed. I have no connection with the company; I am interested in "the most bang for the buck."  I don't build my onm amps any more. I have two stereo Purii Audio amps, and I prefer the Starkes. You don't need to spend a fortune to have good sound. Enjoy the Music!

NYAL (New York Audio Labs) Moscode 600 uses a tube input/driver stage connected to a Mosfet output stage. 300wpc. I have the Moscode 150 - 75wpc. Designed by George Kaye. Go to the Stereophile archives to read the review of the Moscode 300.

I would add D'Agostino to your list.  Friend of mine has Focal Grand Utopia driven by Dag and sounds wonderful.