PS Audio P15 power conditioner vs Accuphase PS 520/530?


I want to add a power conditioner with my study system.  It consists of an Accuphase E-550 integrated, AMR DP77SE DAC, & Ridge Street Audio Design Sason speakers.  I feel no need to change components.  I'm debating between an Accuphase PS 520/530 or a PS Audio P15.

Has anyone compared the Accuphase and PS Audio power conditioners?
Your thoughts are appreciated. 
128x128rubinken

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Just saw this thread. I’ve been selling off my system and my PS520 is coming up for sale next week. Difficult to see PS Audio at this level but who knows. All I know is that it measures line distortion in followed by zero distortion out. I’d suggest reading up on it. Positive Feedback did a nice review a while back.