Testing for Dirty Electrical Power

Jay73, the Shunyata site has a YouTube video where they use an Entech Powerline Noise Analyzer to sonically and numerically demonstrate what you are asking about. Watch the video. It explains itself. In part I purchased a Shunyata Hydra Denali unit, like the one they were testing with the Entech after watching this video, which seemingly demonstrably measured it’s effectiveness in reducing line noise. The Entach unit is found both used and new on Ebay and Amazon in the $25 to $79 range,

Mike

I have a. PS Audio Noise Harvester.   In my townhouse it blinks at a very fast frequency.  In my significant others home which is just around the block it would hardly ever blink.      I know I have dirt power and her power is relatively clean.    My PS Audio power strip does shut down if the voltage drops.

Ask someone who would actually know. Maybe an electrician or someone who works at your local power generating plant.

Very interesting vid from Denali. Perhaps the location of the test was on a business park where there may be more noise on the line.

Cut to the chase....What we all really want to know is in our home installation what is the volume level of the noise relative to the music signal we have?  -50dB?    -70dB?  -100dB?  Or what?  i.e is it more than the  noise generated by our amps and other equipment?  If it is, how much more?

It would be the rare exception to find power that isn't "dirty" in your outlet.  I live in a well developed area with supposedly robust power supply.  My power runs 4-5% THD.

And don't try to "filter" it. that does more harm than good.  The only fix is to rectify and invert.

Jerry