Do what? They certainly do not prove that the use of esoteric power cords with high resolution music playback systems is inaudible.
Or is that conclusion to hard to derive?
You seem to treat this subject as though it was theoretical astrophysics where experiential proof is impossible. Here on planet earth, it is quite easy to test the efficacy of different power cords on high resolution music playback systems.
I need to see what the context is here that you're complaining about.
Here are some quite amusing excerpts from the study:
"It is paramount in conducting listening tests with the most accurate audio equipment available if the test subject is to hear any audible effects."
Agreed. Ok, so why use a dinky low end "pro" mini monitor as the choice for "the most accurate audio equipment available"? Already the guy has invalidated the study using his own criterion. The title of the study is "Audibility of Phase Distortion in Audio Signals". Did the tester carefully conduct phase tests on the test equipment itself to verify that the results were independent of the equipment used?
"Phase characteristics for this loudspeaker were not investigated...Again, the phase response for the headphones was not investigated."
I sure hope the tests that you rely upon do not possess such obvious flaws. Back to the drawing board Daisuke!
rw