Upgrade a power cord for a NAD?

justvintagestuff . Thank you for your suggestions. As I stated in my OP, I have replaced all of the supplied interconnects"out of the box" ones that came with connected components that they supply. I use mostly high grade Audioquest cables and others that are a bit more expensive.
Mine is not a high end system. I have read many forum comments about "break in". Surely, a topic of intense debate. Maybe some components such as speakers need a sufficient break in time. But....cables? I just can't see that as a matter of logic. Maybe some types of break in times are just "brain" break in times.
Please read my OP. Just ask about a replacement power cord for my modest NAD amp.Thank You.

justvintagestuff . Thank you for your suggestions. As I stated in my OP, I have replaced all of the supplied interconnects"out of the box" ones that came with connected components that they supply. I use mostly high grade Audioquest cables and others that are a bit more expensive.
Mine is not a high end system. I have read many forum comments about "break in". Surely, a topic of intense debate. Maybe some components such as speakers need a sufficient break in time. But....cables? I just can't see that as a matter of logic. Maybe some types of break in times are just "brain" break in times.
Please read my OP. Just ask about a replacement power cord for my modest NAD amp.Thank You.

I apologize if I posted duplicate responses. Seems the AG website is operating with a substantial lag tonight.

@jrpnde...…………………………………….

I wonder if the lag is because they gave more bandwidth to The Insider Lobby?

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.