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
NEVER RECOMMENDED TO BUY COSTLY DEVICE....

Experiment with cheap one ....

If the cheap one work why buying costly one?



The costly one works better, doesn't put out a square wave looks nicer and you only need one in your audio room not a bunch of them like the cheap ones.
Purchase the ones that are rechargeable so one or more can be  easily placed at different heights in the room to sense if there is a difference with a change of position.Tom
The costly one works better, doesn’t put out a square wave looks nicer and you only need one in your audio room not a bunch of them like the cheap ones. Rep
I said that because before investing many hundred dollars for nothing, if your room and gear is not prepared enough with a too high noise level to be able to give to you some audible effects, at least you will lost nothing buying 2 cheaps one at 10 dollars each before  buying a very costly one..

The effect is audible but not in all conditions...


This is nonsense, unless you can come up with a real explanation.  The green stripe around CD;s had an explanation as good as what you folks are saying, and it had its adherents.  Hydrogen atoms?   BS!  Hydrogen is so light that absolutely none of it hangs around in your room, or near the Earth's surface.  Please do better.
bhvf nailed it

I had in my gray matter somewhere 7.83 hz and the above site explains it.