BAT Rex II VS Conrad Johnson ARTSA


I'm trying to upgrade my system. Currently have Cary 120sMKII with Cary SLP-05 preamp. I see a BAT RexII and CJ ARTsa on Agon for about half retail. I want to spend around 10k so wanted opinions on these two or other tube amps I should be looking at in that price range for top quality used tube amp that would be clear upgrade to my Cary.  Thanks 
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Congratulations on your BAT Rex-2 amp!

I'm currently using the BAT Rex -2 preamp with the orginal series BAT Rex mono-block amps and the sound is captivating !!! Hope to upgrade to the series 2 version someday. 

All the best
Dear: Friends

You can't go wrong with BAT gear.. especially the Rex ii Best choice ever..

Enjoy
Going back to the original OP query-

the Cary SLP-05 is highly regarded. On the other hand, I have not read much about Cary power amps.