integrated Tube C-J CAV50 for Proac 2.5

I understand Music Reference makes some very fine sounding amps and the series 9 is supposed to excellent for P/P design. I see one is advertised here for $1,500.00.

Preamps I've enjoyed with the CJ amps are Audible Illusions M3a, CJ 17LS, and First Sound Deluxe II. Each of these is great at it's price point, I feel. The First Sound is absolutely jaw-dropping beautiful, it is shockingly good. I've heard there can be impedence problems with some amps, but I matched it with CJ 11a and loved it.
Art

some other tube options I am considering other than C-J are:

1) ARC Classic 60 + LS2B
2) CARY SLI 80

It seems that there are some people use these combinations.Please comments on these combination..

Thanks.

I own the SLI-80 and it powers my Silverline Sonatina II, even in triode mode, beautifully. However I suspect the power for the Proac 2.5 would be marginal unless the room is not very big.
Art

my room size is 13x14 ...and openned to a dinner area.
I am wondering if i could put some shelves (like LP shelves selling in IKEA) to seperate the room. C-J-11a may not have enough power if cary can not do so. and many other
int amplifer (like VAC AVATA, ARC CA50) ususally provde 80W power..or even less.