How about some facts. How about telling all of us how you preformed your tests.
*What was the audio equipment you used in your test? Tell us about your system, including the ics and speaker cable used.
*Was there any power conditioners used between the audio equipment and the AC power receptacle/s used for the outlet cover plate experiment?
*Was aftermarket or DIY power cords used on any of the audio equipment plugged into the test recept/cover plate?
*Give us some examples of the music you used for your test.
*What were some of the things, from the music material you selected, did you listen for?
We need to know a little about the 120V ac delivery system you used for your test.
* Dedicated branch circuits?
* Just a regular convenience outlet branch circuit?
* Branch circuit wiring method including material used?
Installed in a metallic raceway with a metallic rough-in box?
NM-B cable, (Romex trade name)? Metal or plastic receptacle rough-in box?
Equipment grounding conductor/s, (safety equipment grounding conductor/s)? Connected to ground in the same panel the the branch circuit/s are fed from?
If not as above....safety equipment ground ran to an isolated outside grounding electrode, (ground rod), that is not connected to the main grounding electrode system of the houses main electrical service?
*What receptacle/s are you using?
Brand? Model number?
Does the receptacle have a steel ferrous back strap or a brass non-ferrous back strap?
* Stainless plates used.
Ferrous (magnetic)?
Non-ferrous?
Was a magnet used to check?
*Please tell us how you experimented with the SS plates?
Here I am assuming you preformed you experiments using both ferrous and non-ferrous SS plates.....
When you experimented with the ferrous SS plate did try the plated not only grounded to the safety ground of the outlet but did you also float the ferrous SS plate above ground? Did you varify the back of the plate was not contacting the recept metallic supporting back strap?
And lastly, and I do not mean this as an insult in any way but it must be asked as it a "control" factor for any listening test. I can only guess your age from reading some of your posts, again only guessing, you are in your middle 60s or older. I have had my hearing tested in the last couple of years. When was your last hearing test?
Hmmmm, Jea69. Since when did the scientific method matter to you?
01-01-06: Jea48
Spiro, thank you for your response. The whole thing about an outlet cover plate changing the sound of my system is still a mystery to me, but my ears tell me it is a fact.
Maybe you should cover your tracks better before popping off. Just sayin'