Audiofell, you're not forced to spend the .69 cents, I would not worry about it if it offends you. I still think it's possible to hear the drum effect of an outlet cover and in any case, it's a harmless experiment that forces the user to pay attention to their AC connection.
I think there should also be discussions about cleaning RCA connectors, AC blade connectors and speaker spades (or banana) too. Cleaning all of these are audible and always an improvement.
Many times I've gone through my system, doing nothing more than "housekeeping" cleaning of connectors and gotten significant improvement.
In fact, I think sometimes audiophiles doing equipment testing, plugging and unplugging tubes, cables or AC connections the new piece of equipment gets a slight advantage because that connection is improved in the process.
As Neil Young says "Rust Never Sleeps," (neither does oxidation :^).
I think there should also be discussions about cleaning RCA connectors, AC blade connectors and speaker spades (or banana) too. Cleaning all of these are audible and always an improvement.
Many times I've gone through my system, doing nothing more than "housekeeping" cleaning of connectors and gotten significant improvement.
In fact, I think sometimes audiophiles doing equipment testing, plugging and unplugging tubes, cables or AC connections the new piece of equipment gets a slight advantage because that connection is improved in the process.
As Neil Young says "Rust Never Sleeps," (neither does oxidation :^).