Do power cords make an audible difference?

Let's see your electrical current travels X number of hundreds of miles from the generating plant and you are asking if a thicker cord will make a difference the last 4 to 6 feet????No it doesn't.
09-24-10: Vernneal

No actually it is an extension of the primary winding leads of the power transformer.

Depending on the make-up of the power cord it can do more than just deliver AC power to equipment. It can also filter EMI/RFI from not only entering a piece of equipment but also from exiting and getting back on the mains and contaminating other equipment. Example EMI/RFI hash from a CDP going back out on the PC on the mains only to re-enter a preamp or amp. Switching power supplies are notorious for putting hash back out on the mains.

Another thing a power cord can do is prevent EMI/RFI from transferring to ICs near the power cord.

And lets not forget the electrical connectors used, the plug and the IEC connector. They alone can make a difference on the delivery of the power.

And one other thing the utility transformer that feeds your home and maybe four other homes is a step down isolation transformer Two separate windings....

Most of the EMI/RFI, and harmonics that affect our audio equipment is created right there in our homes,.... though the power company gets blamed for it. One of the worst devices is that computer you are using....

Elizabeth,

Did you see this?
http://www.audioasylum.com/audio/cables/messages/14/149737.html
.

Bigbucks

"..tree in the forrest...." Ridiculous.

What if there was a person there but he/she was deaf?

Absolutely there would be a noise. It doesn't matter if the noise or sound is noticed or not.... there's going to be a sound when trees fall in a forest.

Ancillary recognition and/or documentation are not required for some events to produce audible occurrences’.

Go ask the displaced squirrels whose former high rise is now little more than a duplex.

09-25-10: Blindjim
Bigbucks

"..tree in the forrest...." Ridiculous.

What if there was a person there but he/she was deaf?

Absolutely there would be a noise. It doesn't matter if the noise or sound is noticed or not.... there's going to be a sound when trees fall in a forest.
--------------------------

Sound is not the same as a pressure wave. Sound is a perception of the pressure wave. Without perception, there is no sound. If there are no living things in a forest, then a falling tree makes no sound. It may be old, but...

The magazine Scientific American corroborated the technical aspect of this question, while leaving out the philosophic side, a year later on Apr 5, 1884, on page 218 of their magazine when they asked the question slightly reworded, "If a tree were to fall on an uninhabited island, would there be any sound?" And gave a more technical answer, "Sound is vibration, transmitted to our senses through the mechanism of the ear, and recognized as sound only at our nerve centers. The falling of the tree or any other disturbance will produce vibration of the air. If there be no ears to hear, there will be no sound."

Some background on this age-old philosophical question can be found here:

http://en.wikipedia.org/wiki/If_a_tree_falls_in_a_forest

Go ask the displaced squirrels whose former high rise is now little more than a duplex.

Before Jim provided this characteristically witty comment, I was thinking of responding that there are usually a few squirrels around in the woods, so chances are the sounds of the falling tree will be heard :-)

Best regards,
-- Al