kemp sr plug

Even a small incandescent light bulb in a socket near your equipment is helpful.
I use a small 7 watt bulb in a lamp. The small steady power user sucks up some of the grunge.
One of those light bulb socket/wall plug dohickies works great with a small light.
Even a night light wouldd do.. Just not with a light sensor. A cheap one with only a manual switch. (as long as it is an incandescent bulb. no LED)

So fe two bucks you got a working device. Instead of the 'audiophile one for $$$

As for the SCHUMANN RESONANCE PLUG:
The schumann resonance is a low level frequency the Earth has. Iti s there anyway.. the device accentuates it some.
Some claim it helps to relax.
It certainly is not to clean up the electrical service.
If it does anything it makes YOU feel better..

Interesting, thanks for your advice Elizabeth

You can plug them in anywhere actually, they don't so much interact with your equipment as much as your person, i.e: yourself.
I have owned a pair of them for several years...
The effect they have is not at all subtle if set to 12 o'clock or above.
They operate in essentially the same manner as the Acoustic Revive RR-77 and other devices tuned to generate the 'Schumann resonance', except that they offer a fully adjustable antenna and intensity control.