my third advice: after these 2 experiments, now add 120 gram minimum of shungite peebles or a pyramid of this size, on top of your central electrical panel, this experience will inforce some change of bias, yes,and hearing the always more pleasing ,more silky sound perhaps will dissolve the prejudice and transform it in an informed bias...Try it and do not even thank me...Other experience are possible after that...And your bias ,same as mine now will wait for a theory to come....For now i have none...
