By the way the Schumann generator for sure affect the acoustical perception of the room, but I use it with the golden plate and some other stones to enhance the effect...And it is way more powerful with that then only the S.G. without anything else on it...
The S.G. work like a stone " filtering" power enhancement system for the acoustical grid of the room... But Stones and golden plate also "filters" in a way the electrical grid this is my experience when located on the breaker panel for example...
I use the word " filtering" in a metaphorical sense to describe my experience and impressions...Anyway nobody write anything I know of about that phenomenon...
I use the word "filtering" because no stones work in the same window nor in the same level...Be it an amethyst, agate, jasper,fluorite,tourmaline, jade, quartz, lava beads, malachite, shungite, etc, the list is too long to enumerate all the experiments I made with these different stones....
My system cost me 500 hundred dollars and the S.Q. exceed many way much costly system...
Audio is not about electronic engineering only, because a good piece of gear is equivalent to another good piece of gear, modulo some differences for sure; audio is mostly about the embeddings of any system, without which no system can sound at his peak potential possibilities...
Almost all audio forums are misleading and are about buying this or that, not about how to embed the audio components...If what you are is already good, and most of us owns already very decent apparatus, why upgrading like sheep without thinking about the question : how to embed my audio system?