Power cord replacement suggestions

I also suggest beginning with the source components. Stiffening the smaller power supplies seems to yield the greatest improvements. 

N

Ordered a graphehe cord for cdp.  Preamp cord is next, iffin' i like it.

droleg,

For your guidance, quote taken from your manual.  (I currently own the C-X7eMP)

"...Ayre C-5xeMP may be plugged directly into an
unswitched wall outlet. Although proprietary RFI
(radio-frequency interference) filtering is built into
the disc player, in some situations an AC power-line
filter (such as those offered by Ayre) may provide
additional sonic benefits..."

Goor luck with your new power cable!

N

I haven't heard a power cord cause any difference on a source or pre yet--though I haven't done a ton of testing on those two components.  I've heard some fairly large differences on a power amp, but I suspect williewonka is correct.  Even the Argento Flow Master Reference made no difference on my Sanders Magtech when compared to Groneberg Quattro Reference.

I've tried Shunyata Alpha HC (~$1200), Cerious Graphene Blue ($550), Groneberg Quattro Reference ($200), Argento Flow Master Reference (~$6000), Acoustic Zen Tsunami II (~$300).  

I will certainly try the cord on the pre to guage any difference.  If so, i will try the cerious high current cord for the amp. So excited..