I made a test with the PS Audio Ultimate Outlet and stock power cords and then switched to aftermarket cords. I think the Power Director and the UO do about the same, except that there are three(?) independant cleaning units and more outputs on the Power Director.
There was an improvement with UO and stock cords, and additional improvements with aftermarket cords both between UO and components and between the UO and the wall. So the benefits added up and there should be nothing wring by starting with the Power Director. But you get more by adding aftermarket power cords.
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