How close preamp and CD player


Rearranging rack and want to know how far to separate ARC CD3 and ARC LS25 mk2. Amp is 4 - 5 feet away. Thanks.
jl35
I have CD3MkII(top shelf of SolidSteel 5.4) and LS-25MkI(shelf below). No problems at all.

P.S.
Are you running balanced or SE from CD3 to LS?
CD players and D/A converters put out a large electromechical field, mostly in a vertical manner, that can interact with other components. I would recommend putting the preamp to the side of the CD player rather than directly above or below.