Power cord? Why?


I see a lot of posts regarding power cords. I would like to know what sonic difference they actually make. Could anybody explain this in a simple way?

Thank you
cfmartind362
To the "unbelievers", please read and respond to the thread entitled "Philips SACD 1000 / power cords in general accordingly.

Prior to doing so, please be aware that i too was an "unbeliever" up until about 5 years ago. In fact, i was involved in a thread that "debated" the effects of AC cords that had 60+ responses in less than 4 hours time. Most of those responses were between a small group of individuals on both sides of the fence. My position was similar to those promoted by Eldartsford, Bomarc, Pbb, etc... i.e. i was under the impression that a power cord could NOT alter the sonics of a component. That was until i tried various power cords on different components and did hear a difference. As such, all of my previous posts were done in haste as i had relied on "common sense" and my prior level of education on the subject rather than first hand experience and trusting one's own senses.

As discussed in the thread that i linked to, i was able to measure a difference in frequency response / apparent sonics when changing power cords. Granted, this was an "impromptu" test that wasn't performed under lab grade conditions, but the conditions that were present were as close to identical for both DUT's ( Device Under Test ) that could be achieved at the time. As such, any errors that were in place for one cord were also present for the other and would cancel each other out in the end readings.

While i can't explain the differences in perceived sonics and measured frequency response abberations in "techno-speak", i do know what i heard and i do know what the test instruments confirmed. How susceptible or noticeable other designs / systems are to such changes, i don't know. Sean
>

PS... I wish you folks could see one of the highly intellectual T-shirts that i wear. It says "I used to have an open mind, but my brain kept falling out" : )
Post removed 
Viridian: As i've mentioned before, i do think a lot of what we hear can be collaborated with specs. That is, to a certain extent and taking into account that the specs and testing were done in proper fashion. Obviously, spec's can be made to lie and / or be presented in a manner that is less than completely telling.

Being able to decipher and interpret which specs are most important and "telling" of how a component might perform is no different than the clues or "evidence" that a well trained detective has to decipher in order to put the pieces of a crime together.

As we have all seen, a good "investigator" can crack cases whereas a less skilled "investigator" could look at the very same "clues" and come up with a different interpretation of events and / or have nothing to go on at all. While it is true that a lot of what the "super snooper" comes up with is based on "educated guesswork" and requires "logical deductions", it is sometimes spooky what one can conclude by looking at the spec's / test results and corraborating this with what one actually hears.

Having an idea of what all those charts / graphs mean is a good starting point, as you can't interpret what you can't understand. After all, if test results meant absolutely nothing, we would not have been able to refine products / designs to the point that we have today. Good luck trying to make something better when all you have is guesswork to go on without some way to measure / substantiate the various changes made along the way. Sean
>
The only one who can convince you is you.

To those who say, "Convince me", I say, "Sorry, I'm too busy." I don't particularly care whether you can hear the difference a power cord makes, or not.

But to those who are interested in learning, I say, "Try." Make sure your system already performs well--a poor quality or badly matched system won't show differences in power cords well, or at all. Then you can try a cord or two, listen to recordings you know well, and see what you hear.
The higher the resolution capability of my system evolved , the easier it became to discern the changes various "tweeks " imparted on my system. Pc s have only recently become relevant to me. The introduction of the Elrods were at once apparent. The proof is in the listening and with my system , its obvious . To me it is anyway.