Who Tried Power Conditioners Over The Years and No Longer Use Them Today, Any Why?

I used to work on electronics and daw 1st had what happens to cash registers when not on a power conditioner. They might or might not help the sound of the system but protect against power surges.y power goes from 121 to 127

  It was eyebrow raising to read one article after another with Michael Fremer's power troubles in Stereophile. I wasn't at all surprised that he found what he did as technitians, electricians and more investigated his house power starting from the AC transformer supplying his house. And then there was the generator switch, or whatever.

  >>>> So,   after years of applauding different audio devices whether they be related to AC power or not, should we believe it?<<<< He had the worst case scenerio, maybe. I think that what I found before having my home rewired, my incoming AC replaced and much more still makes me wince.

  It is all like driving on bad roads with your new Farrari!

That would be me.

Although I do not live a condo type building and do have dedicated

power.

From what I can discern, AQuest Niagra and Shunyata are the top

contenders if you need one.

In this whole argument, no one talks of the quality of the power supply in the amp.  A well-designed power supply will do a lot of signal conditioning.

I didn't have the experience the OP asked about - rather I'm having the exact opposite experience. A couple months ago my PS Audio PowerPlant 15 quit initializing.  I didn't think I missed it that much but since I got it back on Tuesday I have not been able to stop listening. It sounds so so good - more space between instruments, better soundstage, fuller tones. 
 

PS Audio wasn't forthcoming about what was wrong with the unit but it was repaired under warranty. I was told it was "upgraded to that latest Rev “B1”" without further detail.  I won't be ditching my regenerator anytime soon. 
 

Matt