Flame away. I use them in my system to excellent effect. One on my preamp and one on my phono stage. It takes all of 5 seconds to remove them and another 5 seconds to put them back. I have not personally experienced any loss of spaciousness, any darkening/veiling of sound, or attenuation of upper mids and high frequencies. I just hear more detail. Probably just confirmation bias.
Shakti Stone
Has anyone ever tried one of these? When placed on top of components,they claim it reduces electromagnetic interference.Seems like kind of a questionable claim.