Stevemj - the power cords can have an effect in two ways that I can think of.
1. They act as filters for noise. Anything other than 60Hz is filtered and doesn't make its way into or out of the system
2. They control the radiated fields around the cord so that there is less interference and pickup with nearby cords and devices.
True that the cord is just part of the many miles of power line. But then, so is the power supply in your amp.
1. They act as filters for noise. Anything other than 60Hz is filtered and doesn't make its way into or out of the system
2. They control the radiated fields around the cord so that there is less interference and pickup with nearby cords and devices.
True that the cord is just part of the many miles of power line. But then, so is the power supply in your amp.