Clean AC power

@hickamore,
I'm using a Audioquest Niagara 1200 power conditioner.  A basic unit with no regeneration. My gear is humbly comprised of a Marantz PM-15S2b integrated and matching SA15-S2b SACD player along with an older model Marantz tuner, my OPPO 103 blu ray player, cable box. TV and a soundbar. 

The sound just got calmer, has a quieter background, there's more see-through, better air and extension in the highs on down to the lows, lost that nervous edge on some music along with some shrillness, etc.

@vgizzi ,
I didn't take any noise measurements; only AC volts which ranged from lows of 118 to highs of 120.4 at any given time of day. At least I knew it was stable despite being an old building. I never took any reading after getting the power conditioner.

All the best,
Nonoise

OP,

Look at my system page.

When I installed the Puritan, my readings were cut in half.

Been experimenting with different configuration of all my components. Makes a difference.

Example: My mobile phone charger on a dedicated line ........ the decrease was 10 mV. Have all my wall wart power supplies into my Hydra 8 digital outlet, for an additional decrease of 10mV.

You need an occiliscope to see the dirt i.e. what looks like little lines 
going up and down along the AC arc making the sign wave look thick and scribbly because they are very small voltages .
These lines can be in the mega Hz range and down to the hearing range of 20,000 Hz and below and.

I do know that the creator of the dirtiest in-house electricity are motors ,
the refrigerator , the washer and dryer and dirtiest of all the furnace fan moter and the heat pump .  Flourecent lights are a close second .

Most of my AC conditioning is passive , PS audio noise harvesters ,
Greenwave noise filters and everything that is plugged in goes through
a Tripp-lite ultra surge/filter outlet box .

oregonpapa said it best ,
it's noise that you didn't know it's there until it's gone  !

OP conditioners are different from regenerator, and the PPT products Frank mentioned at the top are neither. Using a conditioner or regenerator is compatible with PPT (I use a PS Audio P3 and a PPT gate-“filter”).

I forgot to mention that in addition to everything I listed above, I also use a Sound Application Power Conditioner. I've upgraded the outlets, and pasted the entire inside with PPT's Total Contact. The Total Contact made a very significant improvement to what was already an excellent power conditioner. 

Here’s a review:

http://www.soundstagenetwork.com/revequip/soundapplication_xe12s.htm

Frank