Upgrade a power cord for a NAD?

jrpnde: I only am offering that you trust your own ears:
If you listen and compare, over time, either you
will or will not hear differences and only you will be able to access "BETTER" for you with your system.
But it is not quick, it does take time, and comparison...

I believe that interconnects and power cords need break-in time because I have heard the differences over time; others believe there is no difference and it is unnecessary. Logic doesn't necessarily apply here; ONLY YOU can determine this for yourself: TRUST YOUR EARS.

You mentioned Audioquest already in your system - investigate their powercords.

Costs vary widely - I am sure you can find alternatives within your budget.

I offerred other brands - Silnote Audio Posideon GL, JOB Sweetcord and PS Audio Statement SC - because I use them and find improvements in clarity, definition and speed of delivery/immediacy (toe-tapping jump) and I switch them from time to time, according to the recording I am listening to...

I won't even address the BRAIN BREAK IN (Psychoacoustics) you bring up, but I try to deal with that by making changes within my system and accessing the 'differences' I hear. And is is always ongoing...

Good Luck in your quest for Your Sound.

I liked the lower priced Transparent Audio power cords with my NAD C372Bee .  You can find them around $100 used and sell for same if you do not like...Transparent's low cost stuff is often overlooked...

BTW: I would luv to hear your NAD 'grow', breathe, flex it's muscles; from what I read about it, you've got a gem there, something worth building on.

AND: What speakers are you playing thru, or headphones?

Well - you got me motivated again to break in a new power cord and see what I think: pulled out the JOB Sweetcord and inserted a new unused Acoustic Research Performance cord (was about $50 as I remember for 3').
Immediate difference: more forward presentation, less bass prominance, and more immediacy in the vocals; more detail in 300+ hours...

ALWAYS AN ADVENTURE - luv it!

PS: Since I have an extra one: contact me at dad101195@hotmail.com, and I will gladly send a 3' SilnoteAudio Posedion GL power cord to get you started on your adventure...

justvintagestuff ......Thank You for all of your suggestions. This is truly an interesting hobby. In the end, it's always about what sounds best to OUR ears.My system is probably pretty modest in comparison to many posting on this site.My system with the NAD amp.....
PSB Imagine B stand mount speakers2 10" powered subsOutlaw ICBM bass managementPioneer PL-530 TT (original owner) with Grado Gold cartridgeGraham Slee phono stageNAD C546BEE CD
I occasionally listen with headphones but mostly thru the speakers. All of the interconnects are Audioquest but not the lowest Evergreen line. I would love to be able to afford some of the more expensive components described here and will continue to investigate power cords. I am just skeptical about spending mega bucks on cables and the like if my system is not capable of reaping the benefits of them.Thanks again for the input from all.