Tube Mono-Block Recommendation

rogue Audio Apollo monos, or anything ARC

Look into the VAS line at the cayinusa web site. I have them and drive proac's. Very pleased.

I like the Amps, to be fast, Accurate and musical as possible. Giving me close to Transistor Amp Clarity

That should be no problem :)

Check out Quicksilver. I use mine with Harbeth's and think his amps are great!

Seems like CAT, ARC, VTL, VAC, LAM -- what is it about 3-letter amp companies? Obviously Atmasphere and Rogue too. All those great choices aside, ever think of Class A solid state? Clayton Audio. Pass Labs. Plinius. Gryphon. They might be worth a look given your requirements. Or perhaps a hybrid. Something like the Rogue Medusa or Moscode? Just doing a brain dump here. Best of luck.