Niagara 5000 Vs Torus RM20 or PS Audio Power Plant 12

@gdnrbob , thanks for this!  
 

Hoping to at least be able to do a bake-off between Torus and Niagara.  I obviously can easily get the Audioquest demo from my local dealer, but I’ll need to check with a different dealer to see if a Torus demo is an option.  If not, I’m almost willing to do a blind purchase IF the Niagara 5000 doesn’t do everything I want.  These products  are in high demand; worst case scenario I’ve paid a premium to rule out conditioners in my system (still leaves an option for PS regenerators though).

IMO the PS Audio PowerPlant P12 is out as it is fan cooled at the bottom. Pick it up and look at the underside. Those fans make noise. The PowerPlant P20 on the jther hand is very good and is passively cooled. No fans. 

i've had torus and ps audio...torus did nothing, ps audio made things worse...wish this review was available years ago

@gwng8 , maybe you have good clean power, making conditioning unnecessary, and making the Torus do nothing?  
 

I can tell my power is clean after midnight, my system becomes downright holographic.  If adding a Torus did nothing to my sound when the power is clean, I’d be fine with that.  I’m trying to get to a point where I get that post-midnight sound any time of day… Seriously, the sound I get at night just makes me want to listen to stuff endlessly - everything I throw at my system sounds so detailed and engaging, and the soundstage just unfurls in every direction.  I can even hear the difference at lower volumes, which is needed in those hours.  It’s amazing but also I will be disappointed if I can’t find a way to make my system perform like this consistently!  As someone else said, this is the price of upgrading my system to be this resolving.  I definitely didn’t notice this difference until I got my Valhalla 2 speaker cables.  At first, I thought that maybe my first impressions of the Valhalla 2’s were overblown when I listened to them a second time.  But quickly realized the pattern of increased performance late at night.  By far the worst time is just before and during dinner time.

@gwng8 , just finished watching that video you linked - thanks for that, I enjoyed it. Good perspective. Without being an electrical engineer myself I do wonder if there are other ways of testing/sampling etc that might yield different conclusions.

If this dude is to be believed and all conditioners / regenerators are useless as proven by his measurements, then I am simply doomed to having poorer sound during the day! Or maybe I need to go back to my less resolving speaker cables and live in blissful ignorance….

If I’m ever buying a new home in the future, I can see myself saying to the realtor “Yes but what is the total harmonic distortion coming in on the AC lines”….