Good small/single outlet power conditioner for preamp.

+1 for the Audience AR2 P.  If you can swing the bucks go for the AR2 T for better SQ. I have one cleaning the power to my streamer only so I do not shut it off.  All other components are connected to a Shunyata 6000T V1.  

@jriggy I am a Synergistic Research dealer, so take it for what you will, but they make a PowerCell One for plugging one single component direct into the wall. I’ve personally been a big fan of the PowerCell series long before I became an SR dealer, moving from higher end PS Audio conditioners. The PowerCell One retails for $1,095 and may be worth looking into if you are just looking to separate your preamp from the rest of your system’s conditioning. 

My amp and pre amp/ turntable are the oppsite side of the room and cannot change. Would i need two power conditioners?  Thrershold SL 10 pre amp and 4000 amp. 

You should try the DR . acoustics Creon. It’s $3k but will not starve your preamp or amp. I have the PSM156 but only plug my sources into it. Otherwise it starves my preamp and amp.