You are absolutely not offending me by speaking your own mind....sorbothane, cork, granite plate, bamboo plates in a sandwich are my way to isolate from the room and from the other pieces of gears each and every one piece.... This adress the mechanical vibrations part....
For EMI i cannot explain all that i had experimented with, i go here little by little, if someone is ready to go far from his own prejudice or theory, he can try some simple experience.... I dont write science here nor pseudo-science, i only attempt to explain to myself the results of very simple experiments, with many kind of minerals that act like filters device to the electro magnetic field of all the pieces of my system and for the electrical grid of the house... I have no theory for that, i dont know someone who have one, i only try to describe the effect to the best i understand.... To put for example a bag of 1 bucks river peebles on top of the central electrical panel of your house is hardly snakeoil,nor an unscientific experiment or theory, only a simple installation to demonstrate a simple effect, i call that,yes,
one of my audio experiment....Is it not better to advise that simple experiment for an upgrading effect than to advise to buy a thousand dollars new hype product even if the product are very good in itself ?
The beginners may read many threads about different, always more costly products, it is not my goal here, nor to sell snakeoil Hi-fi so called miraculous product, even if some are miraculous for sure, nor to sell theoretical explanations that i dont have really....My goal is only give hope to someone with not too much money like i was.... Is a bag of river peebles big money? If it is snakeoil at 1 bucks you will experience absolutely no effect at the end no effect in your headphone or speakers .... Try it and after that you can go on with my other suggestions or stop all that here....The rest is only arguments without end... I am only interest by simple tweaks, at low costs, methods, of cleaning and treating the system, no more ,no less...
For me the miracle is there, not in my Sansui, so good it is, and boy! he is better than good, not in my beloved headphones, so good they are, not in my french dac so extraordinary it is, the most extraordinary things i had try is not buying only a piece of very good gear but simple experiments to improve any systems at cheap costs... Thats all i say...
A last remark about the KEF :i have never listen to them except the audio sample i listen to trough my own system.... But it is clear that with my own system i listen to voices, jazz smooth music,classical, acoustic music, and when i listen to it, it is like i am going down, calmly, the amazon river while listening to the sweet atmospheric moist going down from the sky and some gentle rain; when i listen to the sample for the KEF it is like a lamborghini going down a road ,seeing the details of passing speeding trees, i think the KEf are more articulately dynamic and powerful than my system and
PERHAPS are better for electrical rock,for electro music, and metal symphonic, but probably not for my music.... Then this Kef would at best seems to be for me a sidegrade not an upgrade, and at a much higher cost, in fact triple mine.... Perhaps the real deal for some other peoples....Not for me, and clearly outside the goal of this thread: is it possible to have top audiophile experience around 1000 bucks all included ? At which conditions?
My best to you...
For the"non moving parts" aspect of your post, i must say that ALL pieces of gear vibrates not only the speakers, and they vibrate by mechanical causes but also by effect of the pervasive electro-magnetic fields on each little electronic components of all pieces of the system and from the electric grid of all that is in the house, and that induce a negative resonance mechanical effect trough all parts and links...The sorbothane effect is purely mechanical, and absorb the vibrations and dissipate some part of them in heat...The other materials like cork, granite plate bamboo plates, act also in a mechanical way, damping vibration but without dissipating them in heat, more in coupling-decoupling the vibrations, acting like complex spikes....i called that a sorbothane sandwich....
The minerals be it stones or crystals may act also mechanically to damp the vibrations but i uses them more like natural filtering means for electro-magnetic interference that plague all your house, room, and system, in a feed back noises pollution flowing loop...
I only put in my own words here some of my very low understanding of the experiments i have tried with success.... I waited for a true scientist to explain that... The goal for me was not nobel prize in audio but only audiophile experiences at cheap cost