New Linear Power supply upgrade for DMP A-6

May be I can translate: It means something like snake oil, bullshit bingo and voodoo.

"less ringing" may be his door bell is broken?

Edit: This funny things you are only able to hear, when you are a strong believer an a, so called, real audiophile. Normal people don`t notice any differences because they are not audiophiles.

I listen to the same setting as @csn, he has less ringing with his new power supply. I have absolute no ringing with the stock supply - and my doorbell is ok!

It`s allways the same blablabla with this things: more natural, transparent and all courtains are blown away.

Holy Jesus what a shit!!!

 

That's one of the reasons that I love it! It also helps that it's a better unit overall, and it's orange / gold led color ring matches the leds on my Yamaha receiver and the hard drive led on my HTPC.

 

The only difference is the orange led and the gold plaque, in terms of SQ exactly the same.
Keith

 

You must be one of apostles from ASR, so... SINAD= Sound quality? Yes, for sure
What is SINAD? That sinad "thing" (THD+Signal/noise) is not scientifically approved as only relevant value for sound quality.
Also, your guru/owner of ASR use non scientific methods:
- listening test after measurements, which mean he is influenced by measurements results
- listening test where he is the only panel member, which is not reliable
- not doing listening test at all, and call it "a review"
I don't mean that those measurement have no value, they have... but they are not "holy bible" for sound quality.

Let's forget that for a moment...
We compared, level matched, my Dmp A6 with another owners(friend) Dmp A6/installed LPS power supply in known environment (room). I got 9/10 score, he got 10/10 score in recognising units, speakers used are Magnepan's.
Case closed, for me.

Have a nice day!

 

Cool story.
Keith

 

My issue with most reviews is they are purely subjective so what might be one person's audio Nirvana may be another's audio hell.
Sadly a lot of subjective comment reviews are IME often biased. Example is a YouTube reviewer gets to keep the device he or she is reviewing and in the hope of possible future reviews both for the value of the gear and for content usually (if not 99% of the time) never negatively critique the equipment. Then you have to take into account bias - expectational bias, brand name bias, technology preference bias (tubes vs solid-state; op-amps vs discrete transistors), paper in oil vs film capacitors, solid-state vs tube rectification, analogue vs digital, delta-sigma vs R2R DACs .... oh, let's not forget cash for comment bias and of course the list goes on.

Some people prefer the "warm" sound of added second harmonic distortion whilst others don't. I think it has already been established and accepted that everyone hears and perceives sound differently so judging by ear is a very personal evaluation tool. As I said earlier, what might sound absolutely glorious to you might not float another's boat at all and vice versa.

I often read very descriptive but non-informative reviews using words and phrases like "warm, organic, analytical, clear, transparent, dry, lifeless, crisp, boomy, lacks bass, prominent mid-range, grainy, granular, smooth, laid back, like deer's feet on snow, veiled", et al. All very well but these are terms that really don't have a consistent definition across all reviews and reviewers. One can easily debate that what one person hears isn't what another hears (my prior comment applies). What one can't argue with are scientific measurements unless they were either incorrectly performed or when comparing one product with another applied differently (not comparing apples with apples). I recall that many decades ago it was commonplace for magazine reviews to publish test measurement results. Now it seems that they have dropped out of favour. I wonder why? A poor measurement parameter might reveal a deficiency in the sonic performance? Negative measured performance results might result in reduced advertising revenue or a complete loss thereof? Let's just attribute this approach to the cash for comment scenario.

So what is the definition of high-fidelity? From my understanding it's where the equipment neither adds to or subtracts from or otherwise alters the original signal. IOW as faithful a reproduction that is possible. So, if your equipment is altering the frequency response, causing phase shifts across the audio spectrum, adding for instance harmonics or noise or that wasn't there to begin with, is it still faithfully reproducing the music? What is the threshold of perception when the critical listener can just start to notice something is less than perfect?

Do measurements matter? IMHO and IME, yes, they do as over the decades I've definitely found a correlation between gear that measures poorly and poor sound quality. It does however reach a point where any improvement in measured performance doesn't translate to an increase in sound quality. IOW, at least for me they have reached a plateau where the level of distortion, noise, slew rate, frequency response linearity etc has reached a point where any measured improvement in performance is no longer critically perceptible. Might someone else be able to detect a further improvement? Quite possibly (harping back to my original statement that not everyone hears things identically).

If you want to spend the money in the pursuit of audio Nirvana then that's your call. If you hear an improvement and you can at least justify to yourself the cost was worth it, then so be it.

 

Absolutely correct. From a certain point (of no return) some experience a difference triggered by other factors than the audio signal chain. That's a very well known neuropsychological fact. Not limited to the sense of hearing.
Some (brains) are more, some are less influenced by such effects. And as long as there are enough individuals of the first kind to build and maintain a business it's good for the business, and the customers are happy. Win-win
Who cares if the story being told is correct or false. The Voodoo business is so nice and clever. They don't have to prove anything to ask for ridiculous prices. Because it's purely psychological. As long as everyone is happy in the bubble, everything's fine.
Where there's demand there's business ☝

 

Don't waste youre time on Purité Audio, he is absolutely deaf for sure)))

 

Reading and then learning, try it.
Keith

 

Please tell your wife what to do)

 

Guys, guys, guys! It's a post on audio and the relative merits or lack thereof of swapping out the OEM PSU in the DMP-A6 for an alternative.
IMHO sticking to debating the facts is probably going to be of far more use and beneficial to the interested parties who might be considering going down this route rather than suggesting to a member what they should say to their wife or implying they have a disability. It's known as playing the game and not the man.

If you have to resort to personal insult or inuendo to articulate your POV then IMO you've already lost the debate if that's the card you have to play. Yes, audio forums are full of audiophiles and audiophools flexing their egos on just about every aspect of the subject. There is indeed no shortage of them nor their opinions. IME the difference between facts and opinion is that facts can be independently verified and validated whereas opinions can't always be. Of course there are "facts" and there are facts. What I mean by this is in some objective reviews or tests of some of the relevant facts or parameters could have been be purposefully omitted or manipulated in order to disguise some significant shortfall in the performance of the product, or the testing methodology might have not been done to a recognised standard or otherwise skewed to make the measurements appear to be better.

Anyone who was into hi-fi in the 70s would probably recall how manufacturers used dubious methods to determine the output power of amplifiers. It was a mind field of confusing "standards" like Peak Music Power Output, IHF watts, watts RMS, et al; and even more confusing methodologies to determine signal to noise ratios and distortion. Unsurprisingly this still exists today in some products from the far east where the customer thinks they are buying an amplifier with 200 watts per channel of output power and when tested fell well short of that mark. What failed to be disclosed by the manufacturer or vendor was the 200 watts was at 10% THD which would sound absolutely horrible to the ear. The question then becomes at what output power is the signal clean and the THD (say below 0.1% 0r better) which for most listeners is the threshold of perception of audible distortion. Others may notice it at levels an order of magnitude lower.

Yes, truthful specifications and measurements do matter. Unqualified parameters are IMHO meaningless simply because one could quote and claim almost any outrageous performance (see my comments on amplifier power as an example) and not be dishonest, but simply not telling you the whole truth. Yes, surprise, surprise, surprise the devil in in the detail. Is there a correlation between audio equipment that measures well and sound quality? IME and IMO yes there is. If it measures poorly it usually sounds like it's lacking something and if it measures really poorly it sounds bad even to the "untrained" ear.

 

It's always the "New Members" who display this juvenile posing.

 

A new version?

https://www.beatechnik.com/product-page/lps-a6-eversolo-dmp-a6

 

Which also will not make the slightest difference except to your bank account and the re-sale value of the unit.
If you want to really improve the sound quality of your system download REW and buy a microphone.
Keith

 

You are really too predictable, although nobody asked for your opinion.

 

But as always he is right.
Using your brain a little before buying such crap helps you save money.
What's this power supply supposed to do? Reduce or prevent noise that's inaudible anyway? Well, congratulations.

 

I prefer believing those who have their own experience, and there are a lot. Those who don't have one may have their opinion, but based on what? On brain? The most stupid people are those believing to know everything and claim they are right, not knowing what they do not know.

But calm down, poor boys, you are not the first ones whose opinions differ from what others have experienced. And maybe, someday you will learn to live with that and cope with the fact that you are not the messiahs. Let people do what they want to and accept what they percept. It might help you to sleep better.

 

You are partly right, partly not.
What you experience is real. What you "think" you experience is not. This is, basically, Keith's point; and I do totally agree with him. If you cannot accept this (real vs imagined) then I am keen to think your journey has just begun...

 

If you really want to compare buy two Eversolo units and change the power supply in one ,then compare unsighted, there will be no difference.
Because the units mains filtration and regulation is properly designed and there is no power supply noise in its output, which you can clearly see from its measurements.
It is extremely easy to imagine differences unless you conduct controlled comparison.
Keith

 

I know what you mean. There's always a chance of being wrong by imagination and wishng to hear an improvement. But how can you tell who's perception is imagination? Who is Keith to tell that all those hearing any difference (no matter in which way) this is just imagination while there are so many of them?

No matter what people say, no matter what people see, hear, feel..... even if they tell that their nose is bleeding: Keith will tell them all that this is just imagniation and thus cannot be real because he cannot measure it.

Isn't there a way to check it out by yourself? Haven't you ever wondered why so many people hear differences? Even if there are people who report of direct comparisons with audible distinctions here in this thread, the only reaction is that this is absolutely impossible and just delusion, without EVER having tried it by himself. Without having any argument, such a discussion makes no sense.

I don't know if a linear power supply pays off or not. But based on my own experience, I should give it a try or I will never find out. And I myself have heard immense differences by swapping other things which are of the same kind and are subject to lots of discussions. And guess what: The differences were partly immense, but they were not always improvements and rather worsening, so I went back to the original part. So nobody can tell that I was victim of simply wanting to hear improvements, but the differences were clearly audible whereas many people say that there cannot be any difference. This is why I won't even listen to those crusaders who will never accept other's perception.