roxy54 good observations , myself having owned a Audio store and 40+ years in Audio I have seen it all . I tell people even regarding fuses
and especially AC outlets get rid of these Huge bottlenecks resistance= noise Petiod , look up metals conductivity index , Silver, Copper ,Phosphur Bronze ,
67 is the highest , then Brass way down around 22 3 x more resistance, =3x less conductivity easy math , that $2 wall outlet most homes have it 💩 crap , get rid of it , look at the $99 Pangea gold over High purity Copper ,and grips like a vise verywell made give it 75-100 hour breakin a clear step up in clarity
and these junk brass zinc $2 outlets from home depot corrode inside and rust
these are less then 15 on the conductivity scale , we have literally tested its conductivity, the best power cords ,and line conditioners mean very little when you have a bottleneck from the start, even in your equipment I don’t get it. Use aFurutech Gold or rhodium over copper IEC , instead these $4 pieces of junk even in $$ brands I remove what I can , even all my speakers WBT connectors
and change what’s possible on my equipment , most people don’t even give it a thought ,after my tech friends pointed this out
I went with awg 10 copper with dedicated20 amp circuits 4 wire ,one common ground the other a insulated Isolated ground with its own buzz bar grounded separately , back grounds now are dead silent.
