Here's the correct way of measuring a Power Plant

Het waymanchen…

This could very well be a new topic starter…
just my .02

Best wishes

Excellent idea. Done.

Thanks, Elk. Much appreciated. If comments or views are mean spirited or in anger they are to be deleted. There’s no place for it on this forum.

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Or put another way, ‘half of being smart is knowing what you’re dumb at’ :^ )

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My view is that Muliwave is implemented in wrong way.

By turning on multiwave the output is a “fatter” wave, but the RMS value is keep constant.

The correct implementation should be that peak of the wave is kept constant. With RMS constant the peak of the wave will be reduced i.e. running equipment undervolted.

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OK, but where are the ADCs and what is powering them? I am not familiar with that AP model but I would hope the ADCs and analog input stages are in a 100% shielded can? with a -160db noise floor they almost have to be and the analog power rails damn quiet…

The noise floor of the test gear must be significantly below your measurement threshold or those measurements are no good.

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Yes, you’re absolutely right. Inside the AP there’s tons of covers and cans to keep everything quiet. That’s all handled internally and thus it makes no difference what you feed it (within reason).

Amir’s test was just silliness.

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Amir’s “tests” are often ( unintentionally) comical.
He compared what he called “premium” speaker cables to some “30 or 40 year old” lamp cord he claimed that he found in his attic. He installed the cheapest connectors he could find on this lamp cord and of course, the lamp cord was every bit as good as what he called “Premium” cable.
BTW, his Premium speaker cable cost $149.

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Agreed…

However Amir’s tests strongly influence his “disciples” and casual
readers looking for information regarding PS Audio products
in particular power plant regenerators…

Amir casts a negative shadow on PS Audio power plants, DS dac
who knows what else…

These tests Amir conducts with his pontifical conclusions could
adversely affect your market Paul…I hope the potential buyers
will not yield to Amir’s assessment of PS Audio’s products.

Truly wish you the best Paul…I believe in your engineering,
products and top flight customer service…

May PS Audio be vindicated soundly!!!

Best wishes

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…and owner’s resale value.

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I’ve sold a few power regenerators and I’ve never had someone tell me they were influenced by ASR. His disciples will stay in their comfort zone and people can make up their minds. Possibly by…… listening!

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OK but then putting a “high end” power cord on a DAC or other low current source device is in the same boat. If a test instrument capable of measuring down to -160db or more can retain it’s specifications with a commodity power cord, why would it matter on a DAC or other source device?

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Well what did his measurements show? How were the tests executed? Do you have a link to the video? I guess I can find it on his channel. I want to see that before I make any judgements.

Many times you will hear someone say blind in one eye can’t see out of the other, in Amir’s case it would be deaf in one ear can’t hear in the other!

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Not shocking, because they aren’t buying.

I’ve got a question regarding measuring the noise at the outlets of a Power Plant in relation to the noise measured coming straight out of the wall outlet.
Using a device such as this
“The Line EMI Meter measures electromagnetic interference in a single-phase AC power line. It plugs into a wall outlet (mains socket) and requires no battery. It immediately displays total line noise in millivolts peak to peak (range 1999.9 mVp-p, resolution 0.1 mVp-p) in the frequency range 10 KHz – 10 MHz (the frequency limits at which sensitivity is ½ of the maximum sensitivity)”
Should the noise measured while plugged into a Power Plant outlet, or any power regenerator/conditioner’s outlets, necessarily be less than what’s coming straight out of the wall socket? Or is the frequency range measured by this device irrelevant?
Say you had one product where the noise while plugged into one of it’s outlets was reduced by 80% (as measured within the parameters of the noise meter) and the other product the noise wasn’t reduced at all. What would that tell you if anything?

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get back to me and tell me where i’m wrong.

Who says you’re wrong? Let’s watch it first.

I did. Hence my reaction. See above.

Ok, I watched it. Seems fine to me. He did say it was good value for the price as there is a cost for labor. he also showed us it measures no differently than an old piece of zip cord. Both were equally transparent to the signal. Still at the very end he said if looks are important, then this cable may be a good value for you.

And I was impressed with the way he measured both cables with a real speaker. That fixes the old but accurate claim that a dummy load is not a speaker which can vary impedance versus frequency.

He did have an issue with the bogus marketing claims that the premium cable is advertised as having less distortion than a generic cable. The test results clearly debunk that.

What exactly is the problem here?

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