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Is there a minimum length for power cords?

A cable manufacturer's website states the following:

"However, any length shorter than 1.8 meters (5.9 feet)will begin to degrade the effectiveness of the shielding and filtering capabilities; regardless of who is the manufacturer. Power cords are not like speaker cable and interconnects where shorter is better."

Does anyone have any thoughts or experience as to the validity of this statement?
owenlee
ptss
1,964 posts
 
I bought longer than needed MIT Oracle PC's. I have been "so" grateful for the flexibility provided.The bit of extra length-on occasion-has "never" been even the least consequential--but it has been very revealing/informative/satisfying to be able to experiment due to having a bit of slack. Isn't that a common request.. to cut one some slack.
sonic_genius
528 posts
 
IMO, no sonic difference with unshielded cords (1m - 5m).
yping
351 posts
 
Why are my posts still being moderated?
yping
351 posts
 
Why would length make a difference whether it's a power chord or speaker cable?
zd542
5,339 posts
 
"07-09-14: Yping
Why would length make a difference whether it's a power chord or speaker cable?"

With speaker cables and IC's, popular opinion is to keep the runs as short as possible to get the best sound quality. With power cords, some feel that the cable needs to be a minimum length to get the best sound. Personally, I find the idea plausible, but I don't feel I have the experience or the technical knowledge to make a recommendation, one way or the other.
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