Because yours is a complaint I recall reading in several posts authored by PS Audio owners, I believe the PS Audio is the bottleneck in your system, not the power cords. I owned a PS Audio Ultimate Outlet, and the highs, dynamics and soundstage all suffered as a result.
I suggest running your cords directly to the wall as an experiment, and listening for the change. I'll bet the highs, sparkle and clarity return.
I suggest running your cords directly to the wall as an experiment, and listening for the change. I'll bet the highs, sparkle and clarity return.

