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?
128x128owenlee

Showing 1 response by brauser

I have experimented with ultra high end cables of lengths between 10" and 10' and have found virtually identical performance. I think you have to ask yourself that if length is so important, why are circuit boards built the way they are and how can a product perform so well with very limited distance between internal components (including the ones handling high current). Think about high end integrated amps versus separate components. Does having the extra power cords necessarily guarantee superior performance?