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With interest I read the posts about the mains / power and the effect on hifi gear.

The conclusion why and how electricity thus have an impact and the overall sound of our system is influenced by it is actually quite simple.

Generally the mains is 110 - 240 VAC 50 - 60 Hz
 
The mains shut supply’s a near perfect sinusoidal waveform with a stable frequency of 50 or 60 Hz and low distortion.

The Current the mains supply shut be in phase with the Voltage.

Where thus it go wrong? And what can we do to solve this problem!

In fact we only need pure power, meaning a clean sinusoidal waveform with the supplied current in Phase delivered out of the wall, as simple it is. (Is it?)
 
So we spend big bucks and by us self’s a Power Regenerator and think we are in haven! Wrong

If you look deeper into it then we know that all the gear we use have some kind of build-in internal power supply’s to operate the internal electronics at there different levels. This usually is a Transformer or switching power supply. The internal AC-voltages are converted into DC Voltages with Diodes, Capacitors and DC-DC Converters.

These internal used components and the quality of them to have a huge impact on the electronics and eventually on the Sound as we here it from our repro system.

Generally the better the internal supply the les it is influenced by the external mains power; this is why (pure) battery operated systems are less effected by the quality of the mains power.

Now we go back to where all started; The mains Power and Power Regenerators.

Can we improve our overall system sound in a stable way meaning we can enjoy our music day by day at the same high level as we heard it the day before? 

Answer NO we can not.

To keep it simple there are more technical issues involved as discussed in several technical papers and here in this post.

I will make a small summery and then u can make up your own mind:

Harmonics: a big issue and completely underestimated by the producers of Power Regenerators.

Internal Impedance: shut be as low as possible in the whole system, here we have to keep in mind that all the connections from the equipment to the power source shut be as short as possible.

Jitter: Yes also the AC-Power line / Source is influenced by this phenomena.

Grounding and RF: Lots of studies have proven that the Ground connection in our homes is loaded with all kind of unwanted e-smog.

The best solution here is to have a separate single Ground pin that shut be at least 6 meters of length into the earth.

Still we have the RF problem; here it gets difficult because the optimum situation wood be the have a faraday gage. Most of us are not able to do something against RF Shielding because of cosmetic reasons having the Stereo system setup in the living room for example.

What we can do is not using ore shut down the Wireless stuff, this already helps a lot.

So we need a Power Plant that delivers pure undistorted AC Voltage - Current and this jitter free wit low Harmonic Distortion. The Power plant itself shut not act as an RF radiator as many do.

Herman

Analog Field Application Engineer
30 years of experience in the Analog and Power field

PS: I own the Pure Power 1050 and use it for about 6 month now.

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