Can a better power cable make a difference if NOT plugged directly into an outlet?


I am curious about improving my sound with power cable upgrades.

At present, I'm using a setup which Almarg (RIP) used and which he recommended to me:

Wall outlet (hospital plug)
Audience Adept Response-ar2p power conditioner
Wiremold strip w/ Shunyata defender

I use Pangea AC 9 SE and AC14 SE cords, at present.

This setup has been quiet and hum free. 

Still I'm curious about whether better power cables might make some improvements, here or there.

The question is, whether any improvements a power cable could bring would be blunted or nullified by the setup I'm presently using.

Any thoughts?

Those who say power cables never matter, please go watch a cute cat video instead of posting here, please.



 

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I would have to say yes it might. As @erik_squires mentioned, a serious well shielded cord can make a difference wherever. At least it had for me. Tried one on my amp directly into the wall to replace the standard cord ( into a decent Hubble 20amp receptacle) and really brought things to life. Then into a Chang Lightspeed. Same benefit and increase in everything, but darker background. I no longer desire plugging anything directly into the receptacle. That particular Pangea seems very well built already? I tried this cheapie but goodie to very good effect:

https://a.co/d/hoNYALk

Like it even better than a Wireworld Stratus I was using prior. Gauge/shielding? Hard to say why exactly. Still (and forever) experimenting. 

 

 

 

 

A science teacher would tell me that a power cord couldn't make any difference at all. Also I haven't met a single school teacher that's in this hobby. So that was a stupid remark you made. 

Thanks for some of the replies. 

I'm curious about trying the direct into the wall VS. via conditioner in addition to trying some power cords, in a careful, sequential fashion as described. I appreciate the factor Erik mentioned about interference as a key factor.

I have heard power cords make a difference -- in a store. I do not know what difference it would (or could) make in my system.

Remaining skeptical until proven otherwise is my M.O. for this hobby, because there are many other places to make improvements. So, if I don't hear something, I will send things back.