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

OP:

Here is what I use.  Just remember to connect the thin shield wire and the ground at the wall end, but only the green wire at the equipment side.  This lets noise drain to the wall and not your gear.

https://www.partsconnexion.com/DHLABS-75520.html

Don't forget to upgrade the cable from your box to the transformer on the pole too.

@secretguy Your snideness is no secret, guy

I tried Pangea PC in my systems and they sucked the life out of both of them. Shunyata PC have been a mainstay in my systems for years, they are shielded, quiet and let the music flow with ease. 

I’m impressed with those with the ears, discrimination, money and time to test each component comparing various power cords. My approach was to stay with the latest technology from a major power equipment manufacturer. I bought into the idea that conditioner/PCs were designed as a system. I wanted all components, except turntable motor to be within the system. I also wanted the conditioner to be able to provide large amounts of current for short periods of time. I went with Shunyata. I did play with various cables within their line, but all cables plugged into conditioner were NR. I have no idea as to the validity of my approach, but it made sense to me. I purchased everything with a no questions ask return policy, and I did use returns to upgrade my cable. My attention to power was one of the largest improvements that I’ve made to date on my system.

Given the major improvement that resulted from the full system, single manufacturer approach, I have concluded that many people that have tried cables, but found little success have failed because of their lack of attention to each aspect from wall to the power supply of each and every component. Based upon my experience, as I went up the Shunyata line of cables, I believe that another aspect that has resulted in many people failing to find improvement from cable selection is their unwillingness to spend large amounts of money on electrical cables and conditioners, so when they test they do so with lower level components.