Tube amps under $7500

Audio Research, Conrad Johnson or Macintosh or go home . You can always resell them at a decent price . Good luck selling that Prima Luna with a huge lost . 

quicksilver

If you are looking at integrated amps, take a look at the Synthesis A40. Sounds fantastic and the integrated DAC is amazing. 

My experiences with Tube Amp's both Pre and Power is that they are bettered in their  End Sound when seated upon a Isolated Plinth.

After numerous trials with materials as a Base Board and Footers, the one which to date has made the biggest impression at Tidying up the Sonic being produced, is a Phenolic Resin Impregnated Densified Wood Board, with Audio Technica AT 616 Footers.

A board ss the one suggested is not too difficult to acquire. I am also confident Footers can be found to be equivalent in performance to the 616.

I strongly suggest a support for the Tube Amp is given consideration.  

@audphile1  Rogue now definitely on the list. Had forgotten about them but I do know a dealer pretty well.
@biglou13 , If this means I am wasting my time shopping under $15k, well, so much for the experiment. You did notice I am talking amps, not preamps?
@hilde45  Know nothing about Quicksilver; will research & explore before making any decision.

@curtisvill I am not thinking integrateds at this point as I like the flexibility of separates. Maybe when I enter downsizing mode in a few years.