You measured regulation, not impedance. An Engineer would know this.

Clearly the video is a response to the ASR review of the P12. I mention this because some of the commentors don’t seem to be aware of that. Instead of countering the arguments made in the ASR review, the video is focused on “let’s show you how and what we measure” (partly using multimeters and partly on the display of their own device). As a result, in my and (according to the comments below) many others’ view, it falls short of countering the arguments made by the ASR. In retrospect, from a marketing point, it would have been better not to respond and leave some doubt that there may be some tangible benefits overlooked by the ASR review.

I feel like this video just helped confirm ASRs conclusion.

Hi Paul, quick question. Why did you not measure the High Current outlet? This video is doing more damage than good for your brand. I think PS Audio is in need of a new head of marketing.

Getting my popcorn ready while I wait for Amir's response ;)

As an electronic engineer I was disappointed with this demonstration. Bob looks uncomfortable throughout. Then I watched the Audio Science Review response which confirmed my disappointment. I normally applaud PS Audio's commitment to excellence but pushing these power regenerators without detailed convincing testing evidence supported by blind testing does PS Audio no favours at all.

Well Amir has responded to this nonsense presented here. So in conclusion $6000 for a P12 is a total waste of money -It effectively does nothing.

I find it hard to believe that in the case of a reviling high-end stereo system. Wouldn't it already have a well-filtered & regulated DC power supply that would solve these problems? My point is is it really necessary to spend thousands of dollars to regulate such a small amount of AC voltage differences?🤓

The "miles and miles of stuff" between you and the power company comment ignores the fact that the power is coming from medium and high tension lines that are at anywhere from 6kV to 1MV of voltage, and the power you use doesn't come into existence until it meets the round metal can hanging out on the telephone pole in front of your house. Relative to your amplifier, the pole transformer's impedance and short circuit current are somewhere between *OMG* and "Call the fire department!" so it can be considered a perfect voltage source unless there are lots of other people being greedy with the power. Any drops you have will then be determined by the feeders to your power panel (usually not an issue unless you have a 2kW class-A amplifier) and the romex behind the wall outlet. If you are having substantial voltage drop issues, the regenerator will "solve" those, but at the expense of having even MORE voltage drop as it has to perform an impedance matching between the sagging outlet and what you are powering with it as the regenerator will pull more current than the amp would have. This will have the unintended consequence of arcing, melting the plug, welding the prongs into the outlet, etc. If its already overloaded, the regenerator will just make it that much worse. I cant see any hi-fi setups that could have that issue outside of something like a line array of REL subs or something, but if you did, the regenerator would be a very poor solution. Better would be to call a qualified electrician to install a dedicated feeder and outlet so you can have all the happy volts your equipment needs.

I watched the reaction of Amir to this measurements and what he says makes sense. I hope PS Audio is capable of giving some convincing argumenst to prevent me from starting to think they are in the snake oil business...

Would have been nice to see real test equipment connected to the output instead of using the internal P12 display for the AC waveform and THD.

Come on. If you're going to respond, do it properly. This just makes me more skeptical that this is just snake oil.

The measurement of how overpriced it is based on what it does is about $5000.

In uk our Ring main sockets in our houses are rated at 30A 240v we are not getting voltage drop using hifi. I think this is just a waste of money.

Oh dear Paul, you have undermined any authority you have by not answering the issues that ASR brought up. Why should we buy any of your products if you will not answer the concerns raised about the efficacy of your equipment?

I don't understand what is supposed to be taken from this. The ASR video clearly shows the impact to audio equipment. This doesn't seem to address any of that.

Lame attempt of trying to debunk a critical review of one of your products. By avoiding the negative issues from the critic you, Paul, give the appearance that the criticism is justified

If this was a debunking video about amir's analisys you debunked anything, if anything you showed you don't know how to analyse your own equipents. Always liked your videos, but this is a huge no-no.

PS Audio can't afford an Audio Precision Analyzer? I know the ears are the most important factor but I also thought professional audio gear designers would use precise reference measuring tools as a guideline.

Is there a reason why the high current output wasn't tested? Because this is the output that has come into question. It has poor resistance and doesn't have as much burst power demand as a wall outlet. Also, why are we trusting a front panel display that has limited accuracy? Should we be using something much more accurate to measure this?

What does multi-wave effectively do ... wait for it ... wait for it ... wait for it ... it effectively increases the impedance of the AC line. So you pay a ton of money to reduce harmonics and have the impedance reduced .... so that you can increase the harmonics (multi-wave) and effectively increase the AC impedance (multi-wave). You guys know that actual working engineers watch these videos?

Paul goes “we maintain the quality of the sine wave, may be I could flip the camera around and lets see the distortion levels” Viewer expectations- “wow its gonna be a state of the art apparatus to measure the sine wave” Viewer when the camera zooms into the touch screen - meh… nothing shouts scam more than this.

Why is PS Audio is not responding to any of the many valid criticisms posted below?

you're digging your own grave RIP ps audio...

This test is pointless as the wrong test point is used. The test should be on the DC output from the audio equipment power supply. Any well designed power supply will measure exactly the same voltage and quality with or without this expensive box. The final test is on audio quality. If an improvement can really be heard then spend your money on better equipment with a good power supply. This box is a solution looking for a problem, a problem that does not exist in quality audio equipment.

Can’t help thinking this may be a fulcrum point for PS Audio and their fortunes. Time they apologised immediately before the damage is irreversible.

I'm a big fan of Paul, the storyteller. I've found many of his videos helpful and authentic. In other words, he comes across as a good person! But for the first time, I must say this video raises doubts about how truly useful such product line is. Can't say I'm convinced about the P12 raison d'être! And its price tag is ludicrous vs what else one could buy to improve one's system. Just my two cents.

It regenerates $6000 into a very poor boat anchor.

Since this is an HiFi channel may I suggest everyone listen to the Doors “The End” while pondering the end of PS audio’s credibility.

the P12 once introduced to audio system makes it sound "snakeoily". Similar to adding audioquest cables.

This response video, combined with Amir follow up vide, is causing BS Audio much more damage than Amir's original review of this directshit regulator....

So, I get that the plant provides more stable voltage regardless of current, but why is that an issue. Eg each piece of equipment I own has its own power supply, that can deal with voltage variations from the city power. Why does providing more consistent power matter to devices that are designed to perform with city power?

Two things (at least) came to mind: the ASR review was not referred to specifically, which allows the uncurious to not seek out what prompted this vague response video, and therefore wouldn’t be informed of the points ASR is making nor given a chance to be convinced of the arguments presented. Secondly, since the ASR video is not referred to directly, there is no obligation to answer nor dispute ASR’s testing method or contention that “clean” or “dirty” power entering another unit is going to be handled by its own power supply and thus what happens before it is of no consequence.

Poor Bob, looks like a hostage video

Nothing like blurring the facts with hyperbole.

I find it amusing to watch PS Audio attempt to compete with the audio competence of ASR. Amir’s rebuttal video nails it when he reveals (just by looking at the input spectrum vs output spectrum) that this device is not a true regenerator. Even if it were, there would be no detectable improvement for your system. So the device is shown to be both (worse than) useless and misrepresented. There’s a sucker born every minute. Some of them become PS Audio customers?

You are seriously risking making yourselves a laughing stock here. A quick apology to both your customers and ASR would have been a better response.

I really liked PS Audio. This is a real bummer on what they did on these substandard tests. It is always the right time to correct things. I hope they do and I would reconsider purchasing their products in the future. .

Keep in mind when someone preaches the wondrous magic of Audioquest cables, you will get videos like this to "prove' the wondrous magic of power conditioning. Amir: 1, PS Audio: 0

Seems like this video didn’t really address Amir’s issues. Using a dmm to measure this stuff is fine. But Amir was using far different equipment Oscilloscope etc to show noise introduced etc. Using the dmm is kinda only part of the story.

It's obvious to anyone that understands electronics that these things can't possibly change anything about performance or sound quality. Not only that it runs quite hot, so is wasting power as well!

We use a similar devise for our motorhome. It's the Hughes Autoformer. It maintains a constant voltage of 120v AC, even if the incoming voltage drops t0 100 volts. And it prevents voltage spikes. Not as precise as your power plant, but it protects all our electronic in our motorhome. We just went to a RV park were the voltage was 114 at the RV park plug, but right at 120 in our motorhome. We have the 220v version.

The test everyone needs to show this wonderful openness & amazing sound you're so proud of is a 'with & without double blind' using a range of people including you, a bunch of audiophiles and random folk dragged off the street. If I'd built something like this that's the first thing I'd do and I'd stick it on my website's home page. Front & centre.

So what you are saying, is that your power supplies in your electronics are so useless that you fiirst need to fix the incoming AC power to make them work properly

See the response from Amir and you understand who know electricity and how to measure and who does not.

I was considering purchasing a PS Audio Directstream Dac but after seeing this I would not even consider a PSA device. Truly shocking I also read PMCG’s forum post re AVR … again absolute joke from someone who posts about audio and appears sincere. This video was embarrassing and not proper test equipment used to refute anything. … says a lot about your design process. Amir wipes the floor with you and you resort to slander and swipes Would not even consider a PSA device. Your pricing model is ridiculous My advice stay off YT in future

Amateur hour. That LCD signal demo cracked me up.

I'm currently (pun intended) watching the response to this response kzfaq.info/get/bejne/m9Z5lpCamJ-Ulps.html. It's good to see a manufacturer's claims being investigated to expose the truth.

This video is an embarrassment to PS Audio, please do some more !. So basically it does absolutely nothing !.

Beware.. Amir from ASR is watching..

I’m a little confused why we are expected to believe the figures shown on the screen of the products itself, when your adversary has claimed they aren’t correct. I am not someone who believe measurements are the be all end all of components, especially with amps and speakers and what not. I feel if I like the way it sounds than I don’t care too much about how it measures. I do however enjoy learning about measurements. I couldn’t even dream of affording products like this or others that get tested, so I’m really just here out of interest. That being said, a product like this exists almost entirely in the world of measurements. ASR showed measurements that do not improve any single aspect of performance. If you wanted to counter this than using the display on the actual component wasn’t the way to go. The first section of the video (when hooked up to the external meters) was effective. After that it was meaningless. Not trying to take sides here. I don’t own any of your products but I also get annoyed by some of the people that will die on the hill of measurements over on ASR. I just thoroughly enjoy learning about the hobby, but I can’t see a way in which you’ve combated the current narrative against this product that’s going around.

You got burn and bad. Im looking for a way to file charges against you in EU as P12 owner. Your specs are basically full on lies aka scams and that is an criminal act in EU. This is not ok Paul. Not at all.

this engineer is about to cry, so his voice trembles

Dear Paul, I understand that these power plants might help if someone has a device with a too small power supply. But how about PS Audio devices? Aren't they all designed with high quality big enough power supplies? It seems you and your company also use your power plants with your own devices. Why? Do your PS Audio devices have bad power supplies which need external help? What am I missing here?

ASR did real measurements of the p12 with proper equipment.

Is this vlog due to the Critique that was given by an online technical review (asr) over two parts that was an in depth look at whether these pieces of equipment could be classed as partial snake oil.

Chief designer, well Bob !. Does it improve what comes out of my hifi system. Bob, did you really make something that does nothing. Paul, will you be taking this off the market and offering a refund.

Plus when you look at the cost of the P12 it better be doing what is says on the tin. Not just some diluted version . Or worse still be doing nada . I to think Paul has done himself and the company A disservice by uploading A severely lacking explanation video with no defence of what your actually spending all those hard earned $$$$ for?

I agree about the low impedance compared to input line level but Amir's ASR tests show no improvements in noise levels only a double blind test would convince me of any improvements

interesting presentation. I wonder if we can HEAR the music difference from all this? Can you please try to demonstrate this somehow? Thanks.

Please make more videos like this one. It's nice to see someting more in dept and with measurements

I nearly bought a P15. Was pretty sceptical already, but now I will back down. I might borrow a unit from my dealer, but have no, or at best little, expectations. PSA should prove this Amir fellow wrong or admit he is right. Spec states 0.008 ohm.

Looks like you need to do some proper measurements. Do not tell me what you have done, show me, and not with that little display on the front...You seem to have test equipment on the shelf, is it covered in dust?

I really don't care about the signature of the sine wave coming from the socket because I mostly use switched mode power supplies in my devices. Even if I would only have half of the voltage or even dc, this is not important for me. If you use conventional power transformers this is also not very interesting for you if you have some head room left to get always enough power from the line. And btw: it is not convenient to flatten the peaks of the sine wave, because conventional transformers live from the dV/dt. You loose induction if you flatten the curve and you treat your transformer with more heat load than necessary. So this multi-wave is not very convenient. You have to live with the current peaks through your rectifier and also your capacitors can handle it, if they dont have too much internal serial resistance.

I stopped watching the moment 900 watts of resistive load was put into the test setup. Obviously it's going to sag the supply its 900w of resistive load. Question is how many of you listen to your amps at that level. Maybe it's relevant for PA systems, or for someone who just want to burn money because he has it. I won't be listening above 50W - 75W per channel and at these listening levels this doesn't matter. Anyway each to their own.

This has got to be right up there with gold plated speaker cables.

Wow, I am sorry to say that PS Audio is losing a lot of credibility with this response. Paul does not address any of Amir's points and in no way proves that this device is of help in an audio setup. Sad...

Note that when comparing the voltage drop between directly from the mains and via the P12, the voltage/current test point is very close to the outlet of the P12, rather than via the P12's mains cable. This would probably not account for the difference, but it brings into question the accuracy and integrity of this test.

Paul always says that he doesn't want to pitch his products during these videos, but it's always after he already has. 😋

I noticed that the sine wave display was jittering a bit back and forth, does that mean that the frequency is changing a bit or is it holding the 60 or 50 Hz. frequency tightly even if the line frequency could be fluctuating a certain percentage?

There's a follow up video.. kzfaq.info/get/bejne/m9Z5lpCamJ-Ulps.html

Hi Paul, could you film some audioprecision tests?

So if you put the output through a bridge rectifier and onto a scope, you should see the familiar humps, but if you did that with the multiwave signal, those humps should be flatter and wider? And this means more power available to fill the bulk capacitor leading to less droop in its voltage as the equipment draws power.

'Dirty' mains Signal goes in and a 'perfect regenerated' power signal comes out that's...95% (whatever) the same as what went in. Yeah that's a lot of money to spend for that kind of cleaning performance. I'd stick to amps guys.

What about the high current outlet?

ASR posted a response.. it's goooood...

Paul the power amps you manufacture now, what is lowest impedance your amp can go to before they go out of control or unstable

Thanks Bob!

Products like this are just not feasible in a modern world. Power supply networks (in 1st world countries) these days are so well refined in their power output regulation that "conditioning" is not required. The voltage range is heavily monitored and controlled. Here in the UK, the declared voltage and tolerance for an electricity supply is 230 volts -6%, +10%. This gives an allowed voltage range of 216.2 volts to 253.0 volts. All products that require a 230 volt power supply are designed to tolerate fluctuations in voltage and will operate perfectly well within the above tolerances. No "conditioning" is required at all. This product is purely aimed at individuals who have too much money and nothing else to spend it on. I will give Paul credit though, his marketing and friendly online appearance is charming and I can see how people can get sucked in. It's a very good business strategy with a beautiful design to boot so what's not to like! Its just a shame that this product is just not needed at all in your audio chain. Just my opinion........

I can see the future. I see a lot of returns!🤔🤪🤫😳

Handheld meter🤣

In the video at 20:55, your head engineer makes the claim that "your transformer is only getting half as hot." If this actually was tested, you would have something to stand on.

What is this for again? I don't get it. Are these for amplifiers that don't already have a regulated power supply? Seems pretty useless otherwise.

Could you offer that product with the extension cord made with "4 wire kelvin" cable that include the sensing directly at IEC plug at the other end of the cord that connect to the amp for exemple? so this would ALSO compensate for the power cable impedense itself and then have the voltage corrected and sens direct at the audio components IEC plus input ?.. Oh oh.. is there a patent for that?.. maybe time to think about that guys =)

As a professional , educated electronic expert with over 20 years of field experience in servicing and maintaining studio equipment , DC/DC converters etc. i must say - WHAT DA.. F... ? HAHAHAHAHA Every pro audio today uses SMPS with excelent rail regulation... Even older equipment had a quite good capacitor bank and regulated pre amp stages so that voltage "sag" can only impact peak power of device...We are not talking about NASA lab power line, or CERN equipment .. Audio Hi-Fi is meant to be listened at home ,so audiophoolery shouldn't be here in 2022..i thought it is eradicated by now :) Cheers

That Transformer heating comment is totally incorrect. ​ There will be a small reduction in heat, but unless the transformer is saturating, it will be just that slight. 2 * 0.5 = 1 * 1 last time I checked. The total energy transmitted by the transformer is the same, all that changes is the transformer efficiency depending on loading. Dynamic efficiency will be better at lower currents, but not 2x lower as he implies. At typical loading, even load, the difference will be much less than 10%.

I have the older P5 Power Plant. Mine has a "Clean" function. Is that still being used in the P12? How does it work and what AC problem does it help with? Thanks for all the great videos.

Morning from the UK….When you turned on your power plant the fan noise is extremely loud ! Do all the fans on the power plants make that much noise ?

Man this video is so insulting. I wish Paul didn’t do this video.

hi England calling will this product make my kettle (240v 3kw 15amp draw) boil water even faster & whilst sounding better than it does already.

Amir is the most valuable reviewer on youtube. This overpriced snake oil products for audiostupids with too much money are insane.

I'm in my eighth year of a 10 year "break in" for this device. Hee hee hee, ha ha. OH, the Soundstage is opening up! OH!

I would not employ such a chief engineer. Why don't you show results on the audio spectrum analyser. So what you are saying is you need to match the transmission line else it will.... what a load of crap. You can get by with a uninterruptible power supply (UPS) at a fraction of the cost and have the same zero results.

On the one hand, science for the ones who paid attention at school. On the other, technobabble for the faithful. Pay your money (or don't) and take your choice.

Is this unit like a balanced mains unit?

Was looking forward to the response

Anyone going to bring up the PS Audio Noise Harvester?

Sine Wave power correction is available from APC for under $300. Those emergency battery power supplies do a LOT to correct voltages and electrical distortion. I know that's sacrilege but clean power is clean power.

Really sad when you feel the need to highlight any comment that is remotely positive even if wrong.

Maybe they should change the name to BS Audio.