For what it is worth, the power cords I use (Chris VH DIY) took about 50-60 hours before they settled down and the sound stopped changing.
My interconnect is mostly Purist - with the burn-in CD, they still took about 100 or so to settle in. YMMV
My interconnect is mostly Purist - with the burn-in CD, they still took about 100 or so to settle in. YMMV