hospital grade or commercial grade receptacles ?

As someone already said, ANOTHER one of these 'I can't hear it so it doesn't exist' guys.

I personally cannot hear lots of differences others can hear. That doesn't mean those differences don't exist. I believe it's the height of egotistical arrogance to believe that if it can't be measured, it doesn't exist, and some engineers are that arrogant. Reminds me of the medical practitioners of decades ago.

Obviously some claims made by designers/sellers are bogus; most aren't. ALL deserve to be viewed sceptically...to be investigated one by one, by anyone with ears. Just as some systems resolve more information than others, some PEOPLE can hear some differences others can't.

I believe that EVERY change makes an audible difference. It's up to each of us to determine which of those differences are significant..."audible"...and which aren't. Saying they can't exist really doesn't help.
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Irv, EVERY change in equipment creates a change in the resulting sound, whether YOU can hear it. For instance, decades ago I laughed when my 'golden-eared' buddy talked about elevating speakercables from the carpet. Later in a single-blind test, my jaw dropped when I opened my eyes to see him holding the 2 cables off the ground after I had heard a substantial improvement in the sound...and I'M NOT the G-E audiophile, I'm the generally-tinned-eared audiofool (and I imagine you'd agree with at least the last part. :-) ).

EVERY change makes a difference. Most of them, most of us can't hear. But that doesn't mean there's no difference and that doesn't mean SOMEONE isn't hearing it.

But of course all of this doesn't mean that some of us at some time aren't deluding ourselves into hearing a change that doesn't really exist. That's why each of us has to be careful and methodical about these kinds of changes.
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