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All cables are directional, from hardware store electrical cable to the nest pure silver cables. All AudioQuest cables are marked for direction.

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A cable's performance takes time to optimize because of the way a dielectric behaves (the way the insulating material absorbs and releases energy), changes in the presence of a charge. Cables will continue to improve in sound or picture quality over a period of several weeks.

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Since human perception is more aware of the existence of a distortion than the quantity, the better the cable, the worse in some ways it will sound when new, because the anemic forced two-dimensional effect reulting from being new will not be ameliorated by other gentler distortions. Please be patient when rst listening to any superior product.

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S/PDIF or digital coax cables look like normal cables. However, for superior performance, they must be specially designed for wideband applications.