ADD-Powr by Coherence Systems --- Power Conditioning Products

Several days ago, I installed the ElectraClear device in my main audio system.  I gave it an hour of time to adjust  and then removed it, listened and reinstalled it.  My friend said they substantially improved his sound quality.  An interesting tweak for $75.  

I removed the ElectraClear, listened and reinstalled the ElectraClear.   The music is clearer and smoother.  Unbelievable.   After several days, I still cannot believe this small $75 ElectraClear device can make such an improvement.  It seems there is electrical magic going on in this box.  The music simply has more air, is clearer and sounds less congested.  BTW, my 2-channels home theatre system also sounds better.  I purchased 2 ElectraClear devices, one for each system.   

ADD-Powr has a new upgraded version of the ElectraClear.  Its price has increased to $125 (from $75). 

I asked them what was upgraded and how does it compare to the older ElectraClear unit I already own. 

https://add-powr.com/buy#c1dda5c0-3532-47b9-9284-00c56255da94

Another +1 for @yoby’s recommendation.  Plug your ElectraClear unit into your wall outlet. That is where it is most effective.