How can power cords make a difference?


I am trying to understand why power cords can make a difference.

It makes sense to me that interconnects and speaker cables make a difference. They are dealing with a complex signal that contains numerous frequencies at various phases and amplitudes. Any change in these parameters should affect the sound.

A power cord is ideally dealing with only a single frequency. If the explanation is RF rejection, then an AC regeneration device like PS Audio’s should make these cords unnecessary. I suppose it could be the capacitance of these cables offering some power factor correction since the transformer is an inductive load.

The purpose of my post is not to start a war between the “I hear what I hear so it must be so” camp and the “you’re crazy and wasting your money,” advocates. I am looking for reasons. I am hoping that someone can offer some valid scientific explanations or point me toward sources of this information. Thanks.
bruce1483
Trelja -

Interesting post and information. One question - were these blind tests, or did the musicians know which cord they were using? If they did . . .

Cheers,
Jordan
Elizabeth-
I like your story, but... you may be confusing Apsaras with Asuras. Apsaras are more likely to be making the music that the Devas are appreciating. For power cords I understand that they prefer the Shunyata King Cobras, of course.
Bill Lowe, the founder of Audioquest explained it to me once. He said first, their power cable uses better quality copper, also a few solid core conductors shielded from each other instead of cheap skinny copper and many conductors laying on top of each other. The thicker copper made it easier to draw power and the aftermarket powercords have better shielding. All the rest of the stuff he told me went way over my head and therefore I don't remeber! It did make a big difference on my DC-1 though. The strangest tweak of them all is the sorbothane feet because both my collegue and myself noticed a difference but couldn't tell you what it was, although someone else who had them noticed a difference and was able to put the difference into words for me.
Jordan, the musicians did not test the cords blindly. They knew exactly what they were using. Please see my post in this thread dated May 4th. My friend was using the cord, and was happy. A recording session went REALLY well. Later, he switched back to the stock cord and was playing and seemed to be in a funk for a few days. Something just didn't sound right. Was it his playing, did he need new strings, etc.? He decided to try the cord I gave him again. Instantly, everything snapped back to what he had grown accustomed to. He then tried the copper cord, and gave the silver one to his bandmate. Then, they switched. After a week or two, these two guys who belonged to the "wire is wire" philosophy were cable converts. Not only were they able to determine that the better cords bested their stock cords, they were able to describe in detail why they preferred the sound of the silver cord over the copper one. In fact, their descriptions completely mirrored those of us audiophiles who are partial to silver. It was superior to copper in terms of detail, microdynamics, immediacy, speed, and presence(the word they keep going back to). For these guys, the quality of silver more than offsets the quantity of copper. So, I am sorry but the improvement in a power cord over a stock cord is most definitely not just a function of larger conductors.
stevemj, in yer second post to this thread, ewe say it all, & i'm sure everyone who feels power cords make a sonic difference wood agree w/ewe. you say:

"...If your Purist cord does improve the sound it is because of some phenomenon outside the known laws of science..."

NO KIDDING!!! so stop denying what others hear, yust cuz yer science is so INADEQUATE!!! is yer science's INADEQUACY why yure so afraid to listen yerself?

jordan, in yer recent post, ewe yump all over kitch29, saying:

"Your lack of knowledge of science, electronics, audio, the definition of a theory, EVERYTHING that you mention in your diatribe is so staggering as to be beyond comprehension. The number and magnitude of fundamental errors in your post is truly frightening"...."You'd be wise to take a beginning science or engineering course, and get at least a modicum of understanding (rather than just pretending to) before spewing forth as you just did. It's really quite embarrassing."

the only ting frightening or embarrassing is yer response to his post. basically, all he's saying is what stevemj said, only it took him a bit longer... ;~)

i suggest *ewe* wood be wise to go thru his post & refute each of his "fundemental errors" one-by-one, before condemning what he says in such an off-hand, non-descript, rhetorical & rude fashion.

doug s.