Paul will probably be happy that people talk about his products. I am sure that most of his customers who spent thousands of dollars on such devices will hear the difference. Maybe they are the only people who hear it and maybe it's only in their imagination. But that a lot better than admitting you wasted thousands of dollars.
namzarf Yes, and he should. He knows damn well that his snake oil gimmicks are a ripoff. Paul is recommending his expensive snake oil power cord to clean the power going into his power cleaner, WTF? What's the next scam? Telling gullible audiophiles that they need a $2000 roll of PS audio 14/2 lumex to clean the power back to the breaker panel. PS audio audiophile power poles, transmission lines, power stations...........Where does the lunacy end?
Amir has been giving the most objective reviews. There are so many review channels but all I hear are "this is maybe the best ... in 2022", "there is a little bit of coloration but I like ...", "voicing is superb", and "this system is excellent for album A from the 70s" craps. At least we consumers and some audiophiles need transparent + objective reviews. If they'd profit from sponsors and what not, they better show us some spectral analysis, use the same reference recordings, and avoid using too much euphemism because it's confusing. Thank you Amir for such valuable reviews.
Almost all of the hi-fi "review" industry are really paid shills and true believers. The Opus codec used by RU-vid can't be reliably ABXed from loseless down to 128kbps, yet somehow these guys can tell how much better their equipmment sounds becomes just by changing fuses.
Yes, I appreciate the negative reviews, since they stop people from spending money on poorly-designed products. Other PS Audio products appear to be well-designed, based on the lab tests I've seen, but apparently not the power regenerators. That's embarrassing for Paul, since the PowerPlant is how he made his name.
@@BruceCross what lab tested the equipment? PS audio labs? and like you said the power plant is how he made his name? a $5000 box of snake oil? that means his name is mud. when i use to every once in a while see an obscure video title and click on it to see what it was about and then see paul on it i use to think to myself "this guy again?" nah. because everytime i've ever watched one i knew he was wrong about stuff. sucks some people buy into that kind of stuff from people like him and don't do further research into the topics on their own.
@@XX-121 I'm referring to John Atkinson's measurements of PS Audio products for "Stereophile." His careful measurements are one of the few redeeming qualities of the magazine.
@@Asgoodasachange if i had $4000 i'd rather spend that on better amp and speakers that's gonna give me better sound than blow it on a glorified power strip that does absolutely nothing. but that's just me personally, you do you.
Thats pretty embarrassing from PS Audio. The fact that they can't even afford to test their own gear is really disgraceful, especially at their pricepoints.. This is definitely just a cash-in unfortunately, hopefully one day they will design something that is of worth, when it comes to power. Great review, more like this please.
It has nothing at all to do with not affording the testing. They can afford all the testing in the world. Like so many other companies out there today in the high-end audio space (and there are literally thousands of them) they don't WANT to do any testing. They simply want you to take it on face value/take their word for it, that their products do what they claim. Well, what Amir has demonstrated now for the world, time and time again, is that these companies DON'T actually live up to their billing with the products that they produce. They don't want you looking at test results because that would reveal the differences between what they are CLAIMING and what they are actually providing. That needs to change. We need to start holding these companies' collective feet to the fire and demand that they provide TESTING and MEASUREMENTS themselves that substantiate their marketing claims when selling these types of products. We need to let these companies know that we are no longer going to just "take their word for it". The new customer mantra to ALL companies in the A/V space needs to be spoken with one resounding, unified voice: PROVE IT!
Thank you once again for the highly valuable, public service that you perform for all of us at no cost to us Amir. You are a modern day hero, fine sir. Merry Christmas and a very Happy and healthy New Year to you Amir. Fred
@@AudioScienceReview You deserve it. I also believe PS Audio ultimately will benefit from honest reviews giving them feedback of your kind. I like to admire Paul for his genuine desire to make great sounding products through American engineering but no company will succeed without some "feedback loops" and in the audiophile business, people within a company often get stuck with some falsehood of opinion. Do staff at Nordost genuinely believe that their cables sound better after burn-in? I wouldn't be surprised if they do and what they put on their website is likely not intentional lies, even you and I know it's complete bogus and such claim easily could be disproved in a null-test or blind-test.
@@ThinkingBetter Production and mastering is better to “measure” (if possible) than decoding hardware like a dac. Most music production is being overproduced, over-compressed that “debunking” consumer gear is somewhat a moot point. The blind tests really don’t work unless you are trained sound engineer that can “hear” a mix. If the mix was well mastered it SHOULD sound great on any dac or crappy portable device. Only then can a system sound “revealing” and measurement matter but if you have like 99% of all music being mixed and mastered for streaming services with all kinds of “perfect” DAW plug-ins like audio tune and perfect tempos. Only 1% or less music production is being done for the “audiophile” community. It’s a bigger issue that what ASR does.
Why don't I ever have these problems? My equipment is vintage mid fi. Oh I'll bet it's not resolving enough. It's so unresolving it only plays the music.
You really have to question the ethics and professionalism of a company sellling products like this. The person who designed it is, no doubt, an experienced audio engineer who would be well capable of running the sorts of tests that Amir has. If they did the tests they would soon see the product is worthless. If they didn't do the tests, shame on them.
Paul and his team are legit audio engineers and I'm sure they know what Amir told us in his reviews. The thing is Paul and his team are not just "audio engineers" anymore, they are an audiophile company and as any other companies/corporations.... They must prioritize profits first and foremost. Before ASR Paul created himself a good reputation for being the "half-truth" audio engineer/audiophile veteran. It means that he does not always seem to agree with audiophile concepts, plus he actively shares his engineering experience/knowledge to the community. So over the time alot of folks started to have great faith in him, to the point of not needing to double-check his statements. I must say he's quite great as a businessman and influencer. Edit: I should mention that there's also a possibility he is fully believing in "experiences that cannot be measured". I've read that some other reputable audio engineers and sound experts that are not snakeoil sellers at all and they also think it's possible we haven't discovered everything yet.
@@Douglas_Blake I am already aware of that, I don't think it is the core issue, it is rather his choice to cater his audiophile consumers that allowed him to make products this mediocre while being able to sell for very high prices.
I cannot thank you enough for your empirical data and objective take. This review is eye-opening. Please, don't apologize about being real / honest, especially since you're coming from such an objective angle. Thanks again boss!
Paul is so far down the rabbit hole he fell off the earth years back. I find it a worry how many people trust the guy due to his calming voice and his ability to pretend he's not selling you anything. The guys obsession with DSD borders on the pathological. Guys and companies like that need calling out for sure.
From an engineering and mathematical point-of-view DSD is the best commercially available storage solution there is. Period. Sorry. But the rest of your comment is spot-on.
@@silva_579 There are many members of the ASR community who dislike DSD and frequently criticize it on the website, including Amir himself, who has made several videos on the subject. Some of these individuals may be followers of Amir or "disciples" of his views. Amir has now made 5 videos on Paul and his company PS Audio. Clickbait??
thing is, people in the know can smell his bull sh!d a mile away. i guess the problem is, more and more people, especially these days, don't even know right from left.
@@christophero1969 if you say so. really DXD is, being DSD has to be converted to it anyway to be manipulated or mastered. heck just look into some of the releases that have been analyzed on this channel in just about every instance you'd be better off with standard Hi-Res if even that. you're just wasting hard drive space and cd audio actually sound magnificent (to me) as long as they're properly mastered, that and the fact that the only thing SACD's really got going for it is the multi-channel
I have watched about 10 of your videos the last 2 days and I have to say I’m blown away!!!!! Would it be possible to test any Furman power conditioner + regulator for all of us musicians with home music studios? Wish you happy new year ;)
Nice and clear review. Would like to see more of this on amplifiers and turntables. RU-vid is filled with hype and glorification "reviews" that is more marketing. The need for more concise and honest reviews is much needed in audio and homecinema.
Hi Amir, I found this really interesting, thank you. So far, I have only experimented with a Balanced Mains Unit. As I understand it, this is a passive device which relies on a large transformer to split the mains input into the two separate parts of the sine wave, positive and negative, and puts them 180 degrees out of phase. On adding them back together (not sure where this takes place, or how!), any distortion (positive) to both parts of the pure sine wave is cancelled out as the two halves of the spike, for instance, then become out of phase. How would the downstream device, such as a power amp, be affected? Would it suffer the same or similar degradation as you have discussed in the PS Audio process, which I can see is doing a lot more than does the BMU I have described? By the way, the sound was superficially more impressive, especially in the bass, but it was a budget device and hummed terribly anyway, thus ruling itself out!
Another fascinating video as always and I've started exploring your interesting website and forums more recently. What do you think about using UPSs on our hifi equipment? I've a couple that were unwanted from work sat at the bottom of a cupboard. The way it was explained to me is that they feed connected equipment from the battery slicing the DC back into AC. Would that be any more reliable than units with filters like this or just as likely to add noise?
I don't use UPS on any audio gear other than my Windows PC which is my music server (and NAS). I do plan to do more investigation of quality of AC coming out of UPS devices. I expect the pure sine wave ones to be good but again, it won't make a difference to your audio gear because it doesn't need or expect clean power.
@@AudioScienceReview that will be another set of measurements I'll enjoy seeing. But yes as you say and have shown, our connected equipment can handle imperfect mains. That's very reassuring for us all to know. I suppose the benefits of a UPS could be keeping your kit running those times when the lights might flicker and surge protection.
@@AudioScienceReview Hey Amir why hasn’t your friends over at Microsoft done anything with the HDCD encoder? I’d love to get my hands on the peak extension, dithering and transient algorithms for the HDCD encoders they would be really useful in combating the loudness wars. Hook at brother up. Thanks
I just said it in one of your p12 review test. Thank you Amir for shinning the light on people who are taking our money and not delivering on design promises. I will add this... PS Audio sells nothing but the industry standard snake oil for many years. You have made a loyal follower out of me. The only way to stop people like ps audio is to stop buying their products when they don't measure up to marketing pitch. See how quick things will change.
I'm really hoping that the rise if sites like ASR will push ALL of these high-end audio companies to start producing and publishing their OWN test/measurement results on their products. NO MORE UNSUBSTANTIATED MARKETING CLAIMS! We need to start holding ALL of these companies accountable going forward. From now on, they need to either PUT UP or SHUT UP! Yeah, we get that only your ear can make the final call as to whether or not a product has a positive impact on overall sound quality, that much goes without saying. In the meantime, it STILL important and valuable to see and review valid testing and measurement results. Every single company in the high-end audio space now needs to understand this - and customers need to start demanding it - BEFORE they spend THOUSANDS of their hard-earned dollars. It's time for the world (of high-end audio) to change.
Manufacturers should really be careful, why make a product which will make consumers lose respect for your brand. People do not mind giving you profit margin but at least provide products that have merit and value.
I agree. I think it's almost funny when Paul from PS Audio presents his systems with huge amplifiers and huge power generators. That always brings up the question: Did your engineers design your amplifier (internal) power supplies so bad that they need power generators before the AC input? And if those power amplifiers have great quality build in power supplies, why do you use power generators in front of them? Somehow this just doesn't add up.
@@edgar9651 I think that the analogy is the same as for the general concept of separates. Why are there preamps and amps when we can build an integrated amplifier which contains both? The reason is simple: specialisation, separation of concerns and more available real estate. So, the point is not why do we need a regenerator between mains and electronics. The question is rather why this regenerator does not do its job better than the smaller and simpler ones contained inside each electronic connected to it. Honestly I think that we'd be better off producing electronics having only DC inputs and separated specialized power plants with DC outputs for the electronics. The whole concept of turning AC into DC for producing again an (allegedly cleaner) AC sinewave for the electronics, which then turn it again into DC, is pointless
I'm not a fan of adding power supplies to existing power supplies. Better to spend your money on something that has a descent power supply built in. And in any case, where do you stop. Do you add another power supply to the one you've already added? Would that be twice as good, or worse as the case my be. I just love this guys reviews. If your selling us something to improve our systems at least tell us why in works. And it was suggested that adding a better/more expensive power cable would further improves things. Unbelievable. The human brain is so easily fooled.
Nice review. For more subscribers I recommend you turn on the narcissist switch to max volume, talk 10 times louder, and encourage viewers to go to your store and buy all the avaible snake oil. :) Seriously, I appreciate your approach in your reviews and the quantifiable data that support.
Paul is now saying you need to buy two of his power plants for your hifi. One for your sources and another one for your power amps. He said your power amps are hungry for power and will disturb the power from the power plant going to your sources hence you need another seperate power plant for your sources. Yet more electricity wasted.
Why did they put NEMA 5-20 Sockets on here if this thing can only ever output 300 watts continuously and 1000 watts at peak? That seems optimistic at best.
Nothing that you would plug in. The only effect surge protection device would sit at our breaker box or utility meter. There, it has access to low impedance ground which is what you need to deal with surges. Power company in US installs them at the meter at very reasonable costs (mine was just $350). Point of use surge protectors can actually dump surges into the ground and have it then travel to all the other devices in the house! So they can do more harm than good. Finally, your home owner's insurance in US usually covers lightning damage and such.
Haven't read a review, but i already know what they'll say! Same platitudes they've used for ages. Black background, calmness, crispy tops etc etc. 5/5! Would you like a complementary full-page ad? That would boost sales!
He did debate my testing of PowerPlant 15. Didn't work out well for them. :) His own understanding of his product was wrong as I showed how it limited current to amplifiers and such.
Great post as always. Highly informative. Could you please review the Moondrop Variations. It's frequency response mimics the harmon target almost to the t.
Good review as always, with an expected result shame on companies that sell these quack products. 300 watts this would not run my amp! this is basically a UPS without the battery.
Thanks Amir for another great video. What make & model surge suppressor/line conditioner do you use & recommend? You said in this video that you use one that cost $2,500.00. I currently have a Furman Elite 15 Power Factor i (PFi) I was wondering if what you are using would be a significant upgrade over my Furman? Thanks for being the voice of reason, backed by scientific data in this nutty world of hifi.
Great review! Now I do notice that your Raw AC is relatively clean and with good voltage I would love to see a comparison when the incoming voltage is let’s say 10% from nominal to see if there is any difference that way. I myself at my house during the summer times is not rare were the voltage would be as low as 104 volts, and since we run a small business when the printer would run the voltage would drop to as low as 99 volts. Which is why I got a Tripp Lite double conversion ups for my theater room in order to protect my equipment it always keeps the voltage at 120.5 volts. I don’t really have a comparison with Raw Ac because the equipment has been connected to the UPS since day one and wouldn’t dare plugging it in to the raw ac if it always sounded amazing on the UPS, but I would imagine that since the amplifiers are of the linear type the low voltage would surely degrade their performance. Which is why I think would be interesting to see if there is a performance difference when the raw ac is much lower than nominal.
I agree my raw AC looked pretty good in this instance. In previous tests, it has shown more distortion. I have actually done one better than what you suggest though: my lab AC regen can create highly distorted waveforms. I have fed that to audio equipment with zero impact. Please see it here: www.audiosciencereview.com/forum/index.php?threads/impact-of-ac-distortion-noise-on-audio-equipment.25501/
@@AudioScienceReview that’s great to see it seems like audio equipment have very good filtration agains ac noise and distortion, but I’m also interested in is if low voltage conditions affect their performance I’m sure if it has a switching power supply it shouldn’t affect anything since those are mostly world devices designed to work on 100 up to 240v but what about linear supplies I’m sure they have voltage regulation to some point but how would they work if the voltage was lower than 10% nominal I’ve seen some amps that might go into protect mode if the voltage was too low which was the primary reason I got the Double Conversion UPS hahaha since there are times that the voltage does go lower than 10% nominal I didn’t want that problem. If worst comes to worst where voltage doesn’t really affect audio equipment at least it can serve in the event of a power blip or power outage were I can safely turn of the equipment without harming them hahahah. Thank you for your response!
dude if you're voltage is going down that low you need to contact your power company. let me guess it's dropping hz too right? i really have a hard time believing you.
@@XX-121 I never said anything about an Air Conditioner though it might be the problem that’s because in my City during the summer time it’s not uncommon for the temps to be on triple digits so everyone is off course running their A/Cs hearts off. I did actually call and when they sent someone they said that everything was normal the low voltage was actually caused because during times of very heavy power usage the electric company themselves reduce the voltage by 10 volts to 110v instead of 120v in order to reduce the load on their equipment which in turn reduces power outages due to overloading of the grid the lower voltage to 104 is therefore cause from the high load since the voltage has already been reduced to 110 so instead of dropping to 114v (which would be totally normal) the voltage would drop to 104v. The frequency remains normal at 60hz no problems there. During the cooler months most people rely on gas furnaces and no ac which means the grid doesn’t really get overwhelmed therefore no voltage reduction so the voltages are way more stable and only drop to about 118v during the day to up to 125v during the night so the power problems are only during the warm months.
@@AudioScienceReview You said : " Your audio gear simply doesn't care how "clean" the AC is" ... Well , I'm confidence in your honesty and professionally tests and results, That is not the issue. The issue is that I'm amazed every time that lots of famous Audio companies selling unnecessary products and even publish nonsense. Wish I could go back in time and consult with you before buying ... Thank you for great tests and videos ! that webpage link is added to my Safari's Favorite website ...
Looking at the rear panel, it appears to let you connect 20amp devices to a 15 amp circuit through a device that's limited to 300VA. Well, that's.. something...
I think, the manufacturers of this kind of audio gear produce something far more valuable than diminished distortion or increased dynamics. Everybody knows that those are jobs for electronic devices that don't require rocket science and can be built for reasonable amounts of money. The hifi manufacturers sell you the confirmation that you are special. Your system is so good, your knowledge is this comprehensive and your ears are so sensitive that you can hear the finest differences in sound and rise far above the average Joe, who ist unfortunately to dull to experience these refined joys. It's the same with wines, whiskies etc. For someone with disposable income, isn't buying self worth for a couple thousand dollars a good investment?
That's been done and there's a lot of information online about it. For an expensive version see the ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-PInKGVBkCYc.html
Great work as always. The less of these ineffective and pointless products that people buy the better. Maybe then these manufacturers will get the message when people stop falling for the BS.
Amir , just some information, I have also Apx555 like yours. I notice USB connection from PC to AP and DUT could make huge difference in ground loops , I use isolation transformer 4KW , to connect all to it , AP , PC , DUT . No common mode. One things you can try to use galvanic isolated USB , that lift ( disconnect) PC chassis from AP and DUT. Try it you will get surprise of result.
Love your take on testing audio equipment, I wonder if a PS power plant was connected to a gasoline powered generator or a very noisy 120 volt source could it clean it up a bit or make an audible improvement . Just trying to make some sense of the purpose of this thing. This is an American company that employs Americans , they have an address not some over sea's P/O box and seem to be in it for the long term. I guess if I want to be a customer of theirs or any other retailer, I meaning me should make myself aware of the return policy .
Your audio gear simply doesn't care. As I have responded to others, I have generated very distorted AC and the audio gear performance does not change. See: www.audiosciencereview.com/forum/index.php?threads%2Fimpact-of-ac-distortion-noise-on-audio-equipment.25501%2F
buying one of those for $5000 isn't employing americans, it's making Pauls house payment for a couple months and in return you get nothing. you'd get the same improvment in your audio setup if he just wrote you a thank you note and mailed it to you.
It's not only PS Audio. All manufacturers of such devises produce kit that does nothing. It looks nice. But does nothing. Spend as much as you can afford on the components that matter...amps, DACs , speakers etc etc.
Amir is an almost solitary voice on the objective science of electrical engineering relating to audio. Although Paul McGowan and other high end electronics “gurus”maybe perfectly nice guys that shouldn’t disguise the fact that the majority of high end equipment is grossly overpriced and is almost always bettered in measurements by components costing considerably less. The super expensive equipment is often very cool to look at and is very solidly built but how relevant is that if it has measurable sub par performance. Of course the gifted ones with the “golden ears “ will berate you over not hearing the difference but that is merely a cheap ploy to distract from the paucity of their argument. I just wish there were more videos from Audio science review
Please, Can you tell me if I will go better with my 600ah 12v stationary battery, with a step um regulator and a super capacitor, all DC, than an AC with a power plant? Thank you! I love your work
I would pick raw AC over both. Your audio equipment already converts everything to DC and filters it. Filtering DC at low voltage is a heck of a lot easier, cheaper and smaller than doing the same for AC mains. An inverter on battery would have switching noise which would defeat the purpose of using a battery to begin with.
@@AudioScienceReview thank you for your reply. I have a step up regulator to 36v/1500w and no AC stages and I am not using my pure sine wave inverter. For my smsl dac, a use a step down to 5v. My sound is clear, 8 x 100rms class d amps, dsp analog devices and four way speakers. The sound is very clear, without grain, no audible noise flor, is very speedy response, the 15" jbl drivers are very smooth and compact response too. The batteries are from my solar system. My music is completely free! Sustainable :)
yeah i'm with amir you don't need either, but what's funny is back in the early 90's, before i got my drivers license, i started buying audio gear for my car and at the time my grandpa worked on tractor trailers and used to get me big deep cycle batteries to use with my trolling motor for my john boat. so i brought one in and hooked the stuff up in my room and it worked for a bit (bass about vibrated pictures off the walls if i cranked it) and it would be alright for a while but as the battery drained it would lose it's oomph and need to be recharged and how long that would take was proportional to how loud it was playing it. That was a long time ago but i would imagine if you were say, watching a movie at theatre volume levels, you'd prob have to recharge after one movie if it even made it through one without a noticeable loss in performance.
we keep showing/saying the AC power gets cleaned up as it's converted to DC by the audio devices... but here we have an example of performance degradation (inaudible but measurable) by altering the AC path. so what am i missing? it appears the devices' performance is related to the AC input one way or another. thanks for the upload, wish you all, all the best
Part of it is explainable as I mentioned in the video. That is, the Schiit headphone amp is unbalanced so is subject to ground loop/leakage. By routing its power through yet another box rather than a common power strip I use for all my gear, we increased the ground differential causing that degradation. The actual performance of the unit, i.e. noise floor or distortion did not change. We just added power supply spikes which made SINAD worse. In other cases, I have shown these devices to current limit and reduce power output of amplifiers for example. So they can definitely do damage on that front as well.
Lol, a cheap 300w UPS without the battery. Would be very interesting to see what's inside, two mosfets incapable of continuous operation? Horrible modified wave only output when incoming AC goes out of spec?
Before you got into the review I was thinking ‘ why use an IEC male inlet but not female outlets’? (Like on your average small UPS). They’d need different inventory for different countries! The only reason I can think of is the absence of overpriced audiophile f-m IEC cables. For the price they sell these for I’m sure the budget could stretch to a few leads. Speaking of UPS, the line interactive 2005 vintage APC UPS I have in my rack does basically the same thing as this, can run for hours off batteries, and cost me all of $100 second hand. I’ve seen them in concert touring setups powering dante stage I/O boxes. If its good enough for your favourite touring artists… I’d be curious to see you put one on the bench. Perhaps you should invest a few bucks in a current transformer/shunt so you can look at the current waveforms too.
Still no. See how I simulated 18% distortion on AC and it still made no difference: www.audiosciencereview.com/forum/index.php?threads/impact-of-ac-distortion-noise-on-audio-equipment.25501/
i think after like 10 years the creators of PS audio will come up and say "We are a BS company and we are laughing our asses of to you buying and advocating our products for 20 years... you idiots you got pranked" and spent rest of their days on bahama spending their PS audio money from a swiss bank... If its not the plan, consider it.
Great review! thank you. Being a Journeyman Electrician for many years, and a audiophile, this just reaffirms my view on the power (AC) products for HiFi. Power cables make me crazy. 50 miles of provider service conductors, hundreds of splices, fuses, aluminum and other metal wire, but the last 3 feet of $6000 unobtainium power cable makes a big difference....?? Power conditioner/regenerators systems can be very capable for some industry's, hospitals ect with highly sensitive equipment, large computer installations and so on.. does that matter or benefit HiFi? at home? The .0001% ? or as you have shown, worse. Well engineered and manufactured products such as DAC's, Pre amps, Amplifiers, Sources, Speaker set up, and the room which it all lives has the most impact and matters IMO. In any event, if it makes a person feel better, believes it makes a difference, it is their choice. Choice is what it is all about. Thanks again Amir!
Thanks for the nice comments. Yes, if something makes people feel good, it is fine to use it. They just shouldn't expect improvement in audio. What makes great audio devices great is the fact that they have great filtering of power supply output. Once there, any other attempt is futile.
Hello fellow Electrician, I think pretty much the same way. Don't get me started on audiophile headphone cables. Amir's money quote was in the last sentence: "Every audio device you have assume AC is dirty"
One more attempt and error, it is quite one of the most initiatives in the scientific community in the search for solutions. Amir another excellent cause/effect demonstrated by your knowledge and applied scientific method. great Video.
Interesting and probably saves me money by not being tempted to buy smthg like this. I hope my Linn Klimax Dynamik power supplies do all they need to do already.
Hello Amir. Many of your measurements show peaks of different frequencies, indeed if listened to separately they are out of the audible range. However you seem to forget that they add to what is in the signal and thus affect the overall frequency perception, don't you? Please show us sometime the output signal with noise added, will it be the same? Overall good job thanks for your work. PS This relates to other tests that show the distortion impact to what one can hear.
Good one you exposed the frauds in audiophile world! If I build an Amp then my power supply inside my amp has all distortions below 120 db. so any form of external clean up is total BS
1 question - how bad was AC and shouldn’t (controlled) bad AC be used in a first place for a test of an equipment that only makes sense with bad AC? Perhaps one could use your lab AC generator to mess it up? Even an odd swim ring is rather not helpful to someone who is not in the water or a is a good swimmer anyway. ;)
This one is snake oil but I bought a fat, far cheaper Tacima mains conditioner recommended by another RU-vid channel, a British Audiophile, that I swear made a considerable improvement to my setup! In particular, it lowered the background noise level so I was able to hear delicate notes dying away much better (I like classical. It’s possible this is irrelevant with pop.) I’ve watched maybe dozens of Paul’s videos and he comes over as just a salesman for 90% of the time but that other 10% of genuine knowledge and experience keeps me coming back.
So 90% of the time he's a salesman to you, right? Id say that means the other 10% of the time he's a SUCCESSFUL salesmen. The dude is playing a character. A friendly old uncle who just loves some good tunes. Hes not always selling something, right? Just sitting down and real talking about gear, how it works, the basics. Real polite, friendly to newbies, wouldn't hurt a fly. 🤔 I'm sure that's not intentionally misleading of his actual character and actions, right? right..
while I know it probably wont really change at the headphone end, I'm curious as to what it would look like if you fed it a really distorted and noisy AC signal.
Your audio gear doesn't really care. See this test where i generated AC with 18% distortion and output of the audio gear did not change one bit: www.audiosciencereview.com/forum/index.php?threads%2Fimpact-of-ac-distortion-noise-on-audio-equipment.25501%2F
Two legit reasons to utilize a "power product"; 1.) Lower noise 2.) Lower impedance ¹Star, or common point grounding for equipment, some 𝙚𝙛𝙛𝙚𝙘𝙩𝙞𝙫𝙚 approach to 𝙖𝙥𝙥𝙧𝙚𝙘𝙞𝙖𝙗𝙡𝙚 power quality improvements, via isolation, or regen, etc. ²Low impedance delivery of high current demands with stiff voltage, ... free from I²R heat loss/voltage drop. It's simple, mains either gets in the way or not. Right? Thoughts? (I point it out often, but rarely does one encounter mention of the latter, low impedance)
Great Video ! , Again I can't understand why big companies making devices with nothing to improve ? and publish that it's improving. they don't test their equipment ?
Still no benefit. See how I generated an AC waveform that had 18% distortion and it still made no difference: www.audiosciencereview.com/forum/index.php?threads/impact-of-ac-distortion-noise-on-audio-equipment.25501/
Your have created 2 compartments, equipment with halfway decent power supplies, and equipment without halfway decent power supplies. Assumptions are not proof, you have to test.
the idea is actually not that bad at all ... but I expected the result to be much better and the output to have no relation whatsoever to the input . After all, it is new generated sine wave according to PS. Unfortunately we see the same interference like on the input, only slightly filtered. You get this form a basic filter ... no need of regenerator.
I have tested other classes of devices with lower performance and there is still no difference. Even those devices have filtering on their power supply output so are of no need for clean AC. And besides, why spend $2,500 to improve the performance of a cheap audio device when you could put that money toward a better piece of gear?
@@AudioScienceReview THe $ logic is unarguable. I was just curious if a lousier unit's power supply would be more reactive to these power input changes. Thanks for the reply.
Great video Amir, when are the qa dep. of these companies going to be sacked? I bought a Yamaha cx_a5200 and I can't run my active loudspeakers out of the thing. Product recalls don't exist unless it's life threatening anymore.
i'm guessing you're making a joke? but one thing i don't like about yamaha is their shady power specifications. i'm looking at the specs of the matching 11 channel power amp to that pre-amp and there are no less than 7 different power ratings and none of them give you the actual rms power with all channels driven. the closest thing we get is the 20-20Khz @ 6 & 8 ohms but only 2 ch driven. for something that cost $3000 and not a "best buy special" you would think they could be honest about what you're getting. but then again, a long time ago i bought a denon stereo reciever for my parents that was suppose to be 50w X 2 20-20Khz @ 8 ohm and then later i was doing a job for a guy and he gave me a Harmon Kardon 2 X 50w and that thing blew the doors off the denon hooked to the same speakers, so who knows? i can tell you that harmon kardon prob weighed twice as much as the denon :) it's pushing a pair of Polk Montor 70 series II which i may be about to inherit being my mom talking about wanting to get a soundbar.... 👎👎
