tube pre & ss amp integrated

You might want to check out Rogers High Fidelity. Point to point wired, very high quality integrated tube amp made in western MA. They have a “ used” EFH 200 that comes w/ their full lifetime warranty. I think you can demo it too. I have one & love it. Amongst the very best integrateds available w/ 100 watts /channel in full class A & combines tube magic w/ great power & control. Does get a bit hot. 

I’ve heard the MA252 and it doesn’t sound like it has tubes in it even though it looks cool. it’s a fine amp aside, albeit pricey. 
 

Other options that would sound good and are affordable to modestly pricey are: Rogue Sphinx 3, Marantz Model 30, Pass INT-25 (pricey), Van Alstine Set 120, LTA Z10 are all integrated (1-box solutions) that either have tube hybrid, (no exposed) tubes, or sound warm with tube like qualities. 

+1 @ditusa 
@saki70 , your wife has good taste. Listen to her!

I am with @soix . You don't need 200wpc. Also, I have owned a Vincent SV-226 (Now sold as the SV-227, 100wpc) and truly enjoyed it. I also owned a Pathos Model One MKII (Now sold as MKIII, 70wpc).  I believe either would serve your speakers well. I would lean towards the Pathos, having a slightly more refined midrange if not quite the dynamics. IMO the Pathos is a showcase piece.

I have a similar system , MC452 and Klipsch Cornwall IV's. I purchased a MC70 tube preamp used, but fairly new. What a difference, sound staged doubled in size was very happy with the change and sound . I'm sure there are other tube pre's out there that would suffice. I'm a MC. fan and was lucky to come across the MC70 at a good price . I use basic cables Audioquest interconnects and Knukonceptz twisted speaker 14 ga. wire good luck