Review: VenHaus/VHAudio Flavor 2 Power cord
I have not conducted a full scientific test, but here is my experience. I replaced my standard household grade receptacles with Chris's Pass and Seymour industrial grade receptacles. The sound definitely became more open amd more detailed. This is a bargain tweak.
The next step was to build the power cords for my amp and tuner. This was a another step up, mainly in the detail.
If you are thinking of upgrading your power cords, go for it.
Strengths: Inexpensive, but good components
Weaknesses: A little awkward to assemble (but really no big deal). Stiff cord, could be awkward in confined spaces.
Creek 5350SE, Magnum-Dynalab Etude, KEF C75 Adcom CDP 575
The generic power cord.