Clean AC power

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

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.

@nonoise,

Thanks. The improvements you report are just what I'm wishing for. Was hesitating on regenerators, with PS Audio's entry-level being double the price of the Audioquest. Believe I will start just where you did and, with luck, maybe need look no further.

Dirty power = Distortion (noise) comes from 3 primary sources:

1) The utility company – coming into the house circuit breaker panel.

2) Appliances within the house – eg: TV’s, computers, fluorescent lighting, refrigerators, HVAC, hair-dryers, etc.

See: Jea48’s post above

3) The audio components themselves – especially, the digital ones.

Each digital component – modem, router, streamer, bridge, DAC, etc – regurgitates noise back into the audio circuit – as well as throughout the house – and visa versa. Eventually, this noise creates distortion in the audio signal.

_ _ _ _ _ _ _ _ _ _ _

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

^^^Exactly.

If ’something’ seems off when listening to music - such as a harsh vocal or a ringing piano note or a strident violin  - ask yourself:

Would that ’something’ be allowed on that recording:

- By the recording engineer?

- By the mastering engineer?

- By the record producer?

- By the record label?

- By the recording artist?

Probably not. There’s a good likelihood that dirty power is the culprit. Its causing distortions that shouldn’t be there.