Clean AC power

@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.

"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. 

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

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

@ 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.