Is it possible a 20 amp outlet can make a big difference in SQ?

@carlsbad2 @steakster Both outlets I used have back wire and side wire options. The back wire option is NOT a spring loaded push in - I read up on this - the spring loaded/quick connect option is not recommended.

I did use the back wire connection. I cut the bare wire to length according to the guide on the back of the outlet, sanded the bare wire, then pushed the screws all the way in which fully opens the clamp, then tightened the screws. The connections are solid, no bare wire exposed, no electrical tape used. 

@carlsbad2

You mistake the difference between electrical safety and audiophile sound.

No mistake.

I’ve been working with heavy load electricity on a regular basis since 1977, the first time I tied into a 400 amp commercial panel. I’ve got 20 years of first-hand experience with audiophile grade AC cables - and 10 years of experience with audiophile grade AC connectors. There’s no confusion here.

. . . but they won’t get hot . . .

Apparently, you weren’t at my home last year when an outlet failed. I smelled something burning. The outlet was quite hot when I touched it.

Pulling out your physicist card doesn’t impress me.

Back wires are good, back stabbing is bad.

Back wires use two plates held together by a screw. Back stabbing use spring loaded prongs pushed through the plastic case and IMHO should not ever be used.

Back wires are really good for daisy chained connections. They avoid the little clippable jumper between screws.

I put pictures up on a blog post on a related subject here:

https://speakermakersjourney.blogspot.com/2022/01/audiophile-ac-outlets-for-frugal.html

@steakster I'm sure I could never impress someone who already knows it all.