Mark, the power cord replacement thing is still another audio myth which has no factual basis. The power has traveled miles from where it was generated and possibly a hundred feet through house wiring before it has run the gauntlet of the last 5-6 feet between the wall and the component. Standard power cords are ample to deliver over a thousand watts AC to more demanding devices(e.g hair dryers, hotplates)than audio components. The transformer, rectifier and filter capacitors in the power supply section of receivers then deliver clean DC to the amplifier section.

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Enjoy the music, not the equipment.