Nearly all manufacturers do not advertise/exhibit their product measurements? Why?

@bigtwin 

@mastering92  Re Amir and ASR.  I asked Paul at PS Audio to explain how Amir's testing of the PS Audio Power Plant showed the device did nothing at all.  Here's Paul's reply, which I got in only one day.  That's impressive in itself

Hi Eric,

Sure. I get it. Amir misses the point entirely of the Power Plant’s purpose, which is not as a passive power conditioner that cleans the line noise (which is rather unimportant, sonically). Instead, its purpose is to regenerate new power and regulate that power in a dynamic fashion. That act of regulation lowers impedance and is what improves sonically the connected equipment.

It works and is amazing.

I don't miss any point.  Indeed, I addressed every defense Paul put forward in my follow up tests and and videos.  That aside, it is remarkable that he says reduction of noise is not the point of the product.  This is mentioned clearly in the product page:

"With your system powered directly from the output of the P12, you can expect far better micro and macro dynamics, as well as cleaner, lower background noise. "

Everyone buys these things because they think they "reduce noise."  Paul has changed his tune because that was shot down in my testing showing that this generation of regen is not nearly as clean as a proper AC regenerator as it mixes incoming AC with a correction signal.  See this measurement:

And comparison against my proper lab AC regenerator:

As for impedance, I measured that post his argument.  The turth is the other way around.  An in-rush limiter was causing the device to produce less power than AC signal as shown in my amplifier measurements with Powerplant:

Impedance measurements confirmed that Powerplant made things worse, not better:

There was no stone unturned in analysis of this box showing that at best, it does nothing for your audio gear and at worst, you loose some power.  And you pay $6,000 for the priviledge.

So please, please don't run with stuff manufacturers say.  Be skeptical.  Ask him to prove that his device has lower impedance as I have shown above.  Ask him to show performance improvement with audio device outputs, not AC input.

@amir_asr 

So please, please don't run with stuff manufacturers say.

AND don't run off with what reviewers say. Did you post your in room FR yet?

Why measure speakers that aren't going to perform well because of your room? makes no sense IMO.

@kota1 ,

What point are you trying to make. You know we are in agreement, that we both feel Amir's room is a bit of a disaster, though the smooth dispersion of the Revels will help.

The speakers are measured with a device that measures totally independent of the room it is in. It is equivalent to putting it in a large and very good anechoic chamber.

What other measurement are you expecting?

 

bigtwin 651 posts 03-02-2023 at 06:54pm  @amir_asr I stand corrected and not ashamed to admit it.    Report this

That’s all it took for you to “stand corrected” and kiss your master’s ass? 😂😂😂. Go back to ASR, and stop playing your childish games. You know very well what I mean.