Clean AC power

I use two Chang Lightspeed CLS 709 power line filters.

One on main stereo system, and one on home theater system.

As mentioned, your system may sound noise free, until you add a noise reduction device, and notice a big change....more 3D soundstage, very quiet background, clearer, brighter video, etc.

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

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”).

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,

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.

@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

What measurements did you get, with and without conditioning?

Recently bought a Puritan Audio 156. Major improvement. As oregonpapa said, easily heard, but easily measured with my EMI meter.

@ vgizzi

The majority of "dirty power" in the home is created by electrical usage items found in the home.

Examples;
LED lighting.
Electronic ballasts/florescent lighting.
Light dimmers.
Switched mode power supplies.
Appliance/equipment micro processors.
Computers.
Air handler VFD (Variable Frequency Drive).
Switching on and switching off of electrical motors.
Hair dryers.
Excessive unbalanced 120V loads on the electrical service.
Loose and or corroded electrical connections. ( can/will cause excessive harmonic distortion on the mains.   
Last but not least, audio equipment.

nonoise, what specific methods and/or gear are you using to clean up the power? Thanks.
 

Don’t pay attention to anyone who advises you against trying something for yourself. Every system is different and you won’t know until your try. A good company will have a return policy and you’ll know the minute you try a power conditioner.

I always thought the power at my place was clean enough. I tested the AC throughout the day and it never varied more than a point of two. Thinking is was stable and reading that all amps have power conditioning led me to believe that it was unnecessary.

When I tried it, I discovered I was wrong as it made a big difference.
You see, I tried it for myself.

All the best,
Nonoise

"The power to my house comes from the pole on the road, then underground to a large box that I assume is a transformer. This supplies power to my house only: there are no other houses within 1000’. Does this mean that I am getting very clean power?"

I live in a rural rea with a similar situation-- we have our own transformer, as does each house on our sparsely-populated road.  
A friend who was a PS Audio dealer at the time brought over one of their upper-tier power regenerators and neither one of us could hear any effect, whatsoever. Am I suggestion you wouldn't benefit from power conditioning ? No, but I am suggesting the only way to tell is to try it. No-one here can give you a definitive answer. 

@raysmtb1 same here. Could tell no difference at all and sold all my power conditioning gear.

Not saying that it is snake oil, just made no difference in my house.

Earl.

In my opinion none of the stuff works. I’ve bought lots of it and tried lots of it and couldn’t find any difference in sound. I live in now housing development and if it was gonna be dirty it would be dirty by me because there is lots of houses with lots of people on computers. Spend your money on good quality equipment and you won’t have to worry about your powerMost of the companies have stuff already built and that automatically cleans it

^^^ The only measurement gauges I own are my ears.  The differences can be clearly heard, and are quite striking.

Frank

Thanks for the suggestions. You said you found out that your power was very dirty. Did you actually measure it or just discover it by adding the conditioner?

vgizzi >>>

Dirty power is one of, if not the greatest bugaboo we have to deal with in this hobby.

I have a transformer in my backyard that feeds my home and a few of the neighbor’s homes as well. I had no idea how dirty the power was until I learned how to deal with it.

Over the past three or four years, I’ve concentrated on cleaning up my power with great success. We cannot fathom how dirty the power is, and the negative effects it has by introducing noise into our systems. This is the noise that you don’t know is there until it’s gone.

Most of the noise reduction I’ve obtained was through using Perfect PathTechnology products like The Gate, TC, the Omega Mats, The Omega PLUS Mats, and other products they offered at the time. Sadly, this stuff is no longer available.

So, I would say in your case, the power coming from the pole is dirty, and you should work toward cleaning it up.

Look on the used market here on A’gon and perhaps AudioMart for PPT products coming on the market second-hand. I know a couple of "Gates" have been sold recently. Not cheap by any means, but they provide for a VERY substantial improvement in lowering AC noise. Look for the Omega mats too, especially the Omega PLUS mats.

Also, look into things like the aftermarket fuses that are talked about on this site ... they lower noise too.

The difference in sound quality through the use of these products is totally amazing.

Frank