Does anyone know of any independent studies (as in non-biased type of study), where through a Double-Blind process, the validity of claims towards Oxygen-Free Copper's Sound perception has been proven, or disproved?
Non-biased double blind study? Absolutely. This is done all the time with much of the audiophile snake oil that's out there. Just look at the ads. Seems the results are directly related to whoever sponsors the test however.
