Changing power conditioner stock power cord

John is right on.

(And Narrod is way off -- contrary to what he might think without having tried it, these things *can* be heard by careful listeners who don't believe in fairy dust).

However, as far as changing cords on the ExactPower in particular goes, when I change the cord on mine I don't hear quite as much of a difference as when changing cords on individual components which follow the ExactPower. This makes sense to me given what the EP is supposed to accomplish, but I still do find it worthwhile to use an upgraded PC here, and different aftermarket PCs do lend a different overall system sound, with some being better than others.

Audphile1: The Exact Power is a regenerator of sorts (it doesn't regenerate the entire AC waveform, but more efficiently compares it against a fixed internal reference using a sub-cycle feedforward technique and then compensates for distortions and voltage deviations by actively regenerating whatever's required to make the summed output correct, which is feasible because the desired output is constant).

Audphile1: Yes, only the EP15A model is the regenerator. The others are balanced isolation transformers, some with filters, intended mainly to be used in conjunction with the 15A.

David12: True enough about that cord affecting the whole system. It's equally true of the cords on the power and pre amplifiers as well.