Which preamp for a pass labs?


I bought a Pass Labs xa 30.5 and now I have to choose between a Pass Labs XP 10 preamp or an Audio Research ls 25 MK2. Which one would you choose? Which balanced cables do you recommend to connect pre and final?
Thank you
128x128mizioa
I’ve used both a Cary  Slp05 and an Atma Sphere MP 1 with very good results with Pass amps, currently 2 30.8s. Preferred over any solid state pres including Pass. I run balanced Kimber selects, have 7 meter run between amps and pre.
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