Symptoms of UN-CLEAN power

My take on symptoms of 'Dirty power'.

RFI - Harsh sound, Grey background, Sounds that blur with each other. 

EMI - Weak & untight Bass, Small stereo image. Missing the Boogie Factor

Leakage currents - short decay of sounds, obstructed sound (can be minimized with correct phasing of equipment)

Too much shielding - splash sounds on cymbals, congested & choked sound

DC - Missing Oomph, Tiny bit of distortion on the transients. General lack of naturalness. Bassdrum that sounds like 'Bonk' instead of 'Bup'

General observation: More capacitance = less high, More induction = less bass.

Love to hear other peoples descriptions.

The remedy for dirty power is depending on a) the time of the day b) your system itself (they are noise generators themselves and cross contaminate throught the grid) c) the rest of your household equipment d) tha hood you are livin in. If you have a lot of wall warts and computers for example on the same spur as your stereo, you can start with placing them on a separate spur and filter them also. They are spitting out a lot of RFI and harmonics. Clean power is not a one stop solution. A good filtered power bar with DC correction will do wonders. But don’t forget good quality cables and connectors, cable dressing (separation) and correct phasing of your equipment as a starter.

Dirty power can be better described as suboptimal power. The quality of the power supplies in every system vary. So some, people hear great differences, some will hear improvements in de last %.  Some power supplies have better noise blocking capabilities and filtering qualities when rectifying AC to DC. I don't believe in golden ears BTW. Maybe there is a difference in sensitivity of one's hearing capabilities but mostly it is experience.

Power cable influences on equipment has to do with a) less contact resistance b) less rfi and emi pick-up, and transfer to the component c) less cross-contamination from components on nearby other components and cables d) less voltage drop e) less (lower) leakage currents and parasitic capacitance between components.f) quicker rise times/faster current draw. 

But, if the incoming electricity is dirty the effect will be reduced offcourse,  

Sometimes changing one power cable can have an effect on other equipment in your system.You only hear the endresult. A lot of people have heard the change a good power cable can bring to your system. Who I am to judge? If you don't hear it, be happy and listen to some good music.

Love to hear other peoples experiences. 'Facts', 'Engineering' and 'Measurments'. can be discussed in Tech Talk.