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In the Forum: Audio Discussions
In the Thread: It’s mad, mad, mad... electricity.

Post Subject: The PP2000 and a single line?Posted by Romy the Cat on: 12/1/2010

manisandher wrote:
This is of great interest to me. I'm having a dedicated mains circuit installed and was wondering whether the PP2000 would simply corrupt the line that feeds it. Romy, any idea how best to measure such 'dirt' going back into the line?

A PP2000 will unavoidably corrupt the line that feeds it. It is very easy to see by a scope, measuring your dedicated audio line parallel with PP2000 input and your utility line. The audio line and utility line will have the same distortion pattern but the line with PP2000 will have a MUCH more of HF noise, around 20K-30K. it is very easy to see by flipping the PP2000 input breaker – as soon the unit goes out of bypass the input line will look like a well frosted cake.

In a way this is normal. All, with no exception impulse PS return a LOT of nose to the feeding lines. This is by topology and this is why it is VERY important do not lift the PP2000 ground on input. For the people who use only ONE dedicated audio line it will be debatable what is better – to run the rest of the system from the contaminated by PP2000 input line of to keep the dedicated line free for other components and to run PP2000 from utility line. I see justifications for both votes. I did see that the quality of line that drives PP2000 is auditable. It shall not be as PP2000 flats the things to DC but still I have fitness that a better feeding line produces better results. From another hand the observably noisier dedicated line with PP2000 in it might not impact the sound of your rest components. The amount and noise in the line and Sound are not directly related, so go figure…

The question that I would ask what do not pile everything to PP2000? Why do you want to leave anything out of it. Do you have any problems with sound with some specific components?

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