Power cords: does length matter?


This is a serious question, however if you don’t believe that anything about power cords matter, and you feel the need to make a joke out of the question, feel free.

Anyway: I have noted that all the stock power cords that have been provided by the manufacturers for my equipment are about six feet long. After looking at various aftermarket power cords on the internet, I note that they can be ordered in various lengths from one meter on up.

I would think that the shortest possible power cord in any given application would be desirable (meaning one meter if it would work), but I find that a lot of notions I had about things like this are often wrong (such as what I very recently posted on misc about manually tripping breakers to protect components). So am I also mistaken about selecting lengths of power cords?

TIA for any and all legitimate consideration and answers to this question, and to all others, enjoy the laughs.

immatthewj

The standard length of high- end power cords is usually 5 feet. If you need only 3 feet, then that's what I would buy. It will save you a few dollars and you won't have to loop or route the excess cord. Of course, if you want to use it somewhere else, in the future, it might be too short. Something to think about.

 

jasonbourne71

831 posts

 

Two pieces of steel (carbon iron alloy) coat hanger wire fitted with AC plugs will sound indistinguishable from any boutique power cord.
 

I compared coat hanger wire to a boutique power cord. I disagree with the above statement. I like the coat hanger wire better. My shirts tend to get wrinkled hanging on a my Nordost power cords. But keep perfect on a coat hanger wire. 

@jasonbourne71 another brilliant statement from you 🤣, and you have company, as it turns out. Using wire hanger material as you suggested sounds dull and lifeless in the higher frequencies, and over blown in the bass. I have experimented with it many years ago. My best, MrD.

"Keep power chords under 2 meters if possible"... LOL! Because we all know that electrical properties change drastically once power travels more than this. It just never ends what people still post on this site.

Matt, ime, keep power cables under 2 meters, if at all possible, and allow room for the bending and routing of them, keeping them as far away from the speaker and all interconnect cables, however possible with minimal parallel runs between them. My best, MrD.

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By that reasoning the best sound would be having the amp power supply right at the breaker box. Then two long pieces of wire to carry the + and -  DC of the rectified AC to the rest of the amp circuit. Absurd!

Hi Matthew- actually the theory is that power supplies are myopic - they really only react to what is closest to them.  That is why an upgraded power cord does result in upgraded performance even after hundreds of feet of romex in front of it.  Anyway - the optimal length for power cords is 5 ft - beyond that in length makes virtually no difference in the component's performance.  This is not only my experience, but also that of several well-regarded power cord designers.  Hope that helps you.  I know that this is going to draw out the nay-sayers, but happy to help a fellow enthusiast.