Schumann Resonator


I got 2 of these from Amazon...careful that free returns are applicable.  I charged them up, turned them on and holy moly.....they do help with my system.   What I hear is clarity....space between instruments, a definite difference in upright and electric bass, wider soundstage...you know...all the good stuff. At first I thought it might be increased brightness, but no....it is still the same in that regard.  I still can't believe it, and will listen again tomorrow (saved the packaging for the return)...but today, I'm about to keep them.
128x128stringreen
In my experience this S.G. work in the electro magnetic linkage with my gear room electrical grid....

Not by sound.... It is clear in all advertisement There is no sound....
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@oldhvymec it’s EM radiation at that frequency/wavelength, not sound. Nothing to hear and outside the frequency range your eyes can detect so you will never see it either.

https://sites.google.com/a/coe.edu/principles-of-structural-chemistry/relationship-between-light-and...

7.83 Hz has a wavelength of about 38,000 kilometers which is WAAAY off to the right in this chart,  well past EM  wavelength of radio waves.