Change power supply DMP-A6 GEN 2 with LHY AUDIO LPS-A6-MKII ?

Has anyone replaced the power supply of a DMP-A6 ME gen 2 with the LHY AUDIO LPS-A6-MKII power supply module ?
If so, have you seen an improvement ?

 

Tell me why? is yours broken?

 

My power supply isn't broken.
There are power supplies that claim to be of better quality than the original and improve the sound quality.
For example, this one:

https://fr.aliexpress.com/item/1005...9!ct!FR!6305833706!!1!0!&gatewayAdapt=glo2fra

or this one:

https://www.audiophonics.fr/en/regulated-psu/beatechnik-x-lhy-audio-lps-a6-mkii-p-20973.html

 

Hi, A few guys around here claim the bottom end definitely has became somewhat tighter, fuller, a little more punchy, approximately in the 400, 500 Hz on down, however
Most of them from my understanding had decided to replace the stock PSU, due to the ongoing problems with the stock or factory supplied unit, I have a PSU unit here for my A8 and decided to leave it alone at this present time, I kinda inherited it as a partial trade.very Nicely made, well executed workmanship, 3 transformer unit, personally speaking the power supply of any audio device, is quite an overall sonic prediction in overall presentation of any audio device or unit, when I were a younger man an old audio preamp/amp builder in New York City once told me always remember the three P’s , I was bewildered , What do you mean the three P’S , he turned around and reply and stated to myself, plant poor power supplies, equals plant poor performance, I’ll never forget him. Julius Futterman, from New York Audio Labs well, his word was good enough for me. I was very lucky to have met him… try it out and evaluated from there, again if not, you have an extra PSU, it’s more than likely bound to fail at one point or another just my humble opinion, yes, I have been aware. Thank you. For your particular unit, I am almost certain Teddy Pardo produces a real professional outboard PSU for the A6’s , no pun intended, but I believe if I were headed this way, I would absolutely without doubt take a quick peek at some of his offerings nice stuff as always.

please have a good week. Best of luck with that

 

Complete waste of money, won’t and can’t improve the sound quality and destroys the re-sale value, the holy trinity.
Keith

 

Kind of like you you’re a complete waste of money and a waste of time, go take a bath
Now that’s one brainwashed simpleton if I ever met one, He receives ASR treatment at night,
Under the head, electricians orders , go home please i’ll even pay for the ride, lmao

 

Post reported.
Keith

 

That would most definitely be your call, I kinda like the Audiophonics personal speaking, but for a few dollars more give Teddy a call , I certainly would. But that’s just me
Well worth it, in the long run, and if you happen to encounter ANY PROBLEMS, no problem discussing it with him, sorry just my take on it, again best of luck wherever you
Decisively may decide, …

 

hooray for you, what do you want, Eversolo sticker how about a gold chain with an emblem around it hey that would be cool Yeah, I’ll definitely lose sleep tonight too well, like my buddy just said he is a salesman. I did forget we do have to allow for that.

I wonder if he reported himself also ????
You try to hold a logical conversation with somebody on a PSU unit and this guy just comes out of nowhere with some kind of off-the wall electrical engineering scholar of the world the ninth wonder of the world so that’s where it’s been hiding oh OK

 

My 2c worth. Guys can we please stick to debating the facts and keep it civil?

I've been around long enough to fully appreciate just how polarised the audiophile community can be especially with expressing opinions. But let us not forget that opinions are just that - opinions. Everyone has at least one. However rarely IME do all opinions hold weight when tested against the factual evidence. Playing the ball and not the man gains my respect.

 

I agree with you Al seriously 100% we have exchanged numerous conversation over this Fourm I believe you know me somewhat to a varying degree, but to put it down straight who the hell are you to boldly state what works and does not work and being a waste of this spent funds, when I was shown and taught by a gentleman that was respected the world over for his famous Flutterman amp otl designs, not to be condescending you are merely a a salesman in the niche world of high end Audio sales, what gives you the credentials or in fact, even the right to Bring criticism and negativity or even questions a man that I had personally learned from in New York City That was engineering and building power supplies decades before you were born, I’m sorry, but I don’t think so Al , if you personally don’t believe in such just state your personal opinion Don’t generalize like none of it makes a difference because it does ,, as long as you let folks like that overrule things of this nature in the world it shall continue to worsen exactly like it already has, what’s right is right and what’s wrong is wrong, and this guy has the audacity to complain when he is the most Incorrigible individual do ever take part in this forum or probably on any other,

Some folks should stick to selling equipment and leave their personal thoughts, ideas and opinions out of such things they have no particular real knowledge of, also as of myself as all my learnings and teachings has came from various perspectives throughout my life, including yourself if you remember correctly, as I have thank you many times as it was greatly appreciated and I sincerely appreciate it you showing me and introducing me into an actual website I had no knowledge of, I believe you know, as well as myself this is just a waste of words and time, yes technology has immensely changed engineering has immensely changed, but unfortunately most power supplies basically are about the same that the best of my knowledge and ability i’m not speaking on the new one improved stuff that’s been out the last 15 /20 years or so, but without getting real lengthy here, I’m certain you have better things to do some folks need to be brought down to earth once in a while like it or not welcome to the real world, but I thank you as always a pleasure hearing from you and anytime, something Else I was never in favor of I don’t believe any dealers whether it’s the direct sales store sales or whatever kind of sales should not have the ability or the entitlement to participate in these type of forums , not good something in the way what I would call a Direct conflict of interest , you may not agree others certainly do,

I certainly remain respectful yours thanks again

 

In a similar "argument" I have been banned on ASR - pass the tissues!
Probably when I asked if ALL DACs are transparent and sound the same how come an R2R DAC sounds different?

 

Is that wright, how about that, every once in a blue moon, we do receive some lucky days in this hobby, I’m most certain,you must ,miss it ……?
Yes I think of grade school once in while,

 

All dacs aren’t transparent, there are a few really poor designs that will add audible distortion.
Keith

 

I will preface this post by apologising for the lengthy reply.

I'm reading some of the replies since I posted my comment on opinions and that nearly everyone has one at some time about something. Agree with me or not but I don't ever recall stating that there's no difference between power supplies. What I might have eluded to in past posts is there are differences in power supply capabilities in the quality of the designs and in the choice of the components used. Yes, traditionally 'linear" power supply units (LPSUs) are and were considered to be the de-facto industry standard for good voltage regulation and low noise, but switch-mode power supplies (SMPS) designs have come a long way in recent years. IME as a technician you often get what you pay for in both camps; and believe me I've seen and had to work on both very good and shockingly bad designs.

As the discussion in this topic relates to the power supply options for the DMP-A6 ME Gen 2 let's take a quick look at the operational criteria keeping it as simple as possible so even a less technically minded reader won't be baffled by the science. The goal of a typical power supply running from the a.c. mains is to convert the 120 / 240v, 50/60Hz incoming supply to a stable d.c. voltage(s) to run the electronics. It needs to be of adequate design to meet or exceed the power consumption of the electronics (micro-processor, DAC, op-amps, relays, display devices, USB ports, etc. In the DMP-A6 and the other models in the range with the exception of the Play model the power consumption is relatively constant unlike that of a Class A/B or Class D amplifiers where the power consumption varies with the audio signal and the output power. The power supply also needs to be relatively noise free, however I will qualify this statement that how noise free it has to be will be dependent on the rest of the electronics. In lesser designs that have a poor or mediocre power supply rejection ratio (PSRR), an electrically noisy PSU will impact on sound quality as some of the noise might be audible whilst listening to very quiet passages of music or periods of silence with the volume control turned up. The converse can be said for a circuit with an excellent PSRR. IOW, if the rest of the electronics has an excellent PSRR a designer can usually get away with a less quiet PSU without compromising the overall performance of the product. But there's always a price to pay. To design a circuit that has a high PSRR requires careful component choices and a lot of attention to the physical layout of the printed circuit (PCB) (trace routing, ground planes etc) and also where the components are placed. Poor PCB layout can significantly compromise the noise performance of what might otherwise be an excellent design on paper.

To design an electrically quiet SMPS that has a relatively constant load on it like that required of the DMP-A6 is not that difficult. With a virtually constant current consumption on the part of the electronics it is feeding, the noise components caused by the switching convertor are predictable in characteristics and therefore the filter design to eliminate these noise frequencies can be easily and efficiently optimised to combat them. There is a whole host of other techniques to reduce noise on the PS rails but trying to explain these in simple layperson's terms is perhaps well beyond the scope of this somewhat brief reply. For those interested there are plenty of white papers on the subject, but some might be too technical for those readers that don't have the background knowledge in electronics to fully comprehend the science behind them.

On a personal note. Whilst some of us are still on the journey in search of audio nirvana we should remain mindful that this pursuit isn't the same for everybody. Nor has everyone got an unlimited budget to be constantly feeding that appetite to keep on "upgrading" their equipment every time something new comes out. In conclusion if you can't hear the difference, IMHO you are wasting your money except for bragging rights. IME, with the exception of audio get togethers, most audiophiles listen to their systems in solitude. After all, you want to be positioned in the sweet spot for the ultimate sonic experience if you are listening through speakers - right? Any other position in the room is usually a compromise.

As for the comment "Some folks should stick to selling equipment and leave their personal thoughts, ideas and opinions out of such things...... ". Not wanting to cause any disharmony or to ruffle anyone's feathers, but since when has this forum become like the UK where whatever opinion you have has to pass censorship approval? One of the things I like about this forum is I get to read a wide range of comments, questions, advice and opinions without the fear I'm going to be sin binned for taking the time to construct hopefully an informative and considered reply. This forum, unlike many other audio forums isn't dependant on sponsorship for its survival, but rather on the participation of its membership. Agree or disagree with whatever is written on these pages, but at least do it in a respectful way. If some member really irritates you, instead of engaging them in a battle of words of attrition, just use the ignore function. Problem solved.

 

Components should have adequately designed filtration and regulation, any power supply noise is apparent in the components measurements.
The Eversolo units measured so far show no such power supply noise, which means they will not be improved by ‘boutique’ power supplies.
Keith

 

Their is Ab

In your opinion with ASR, don’t forget to mention that most overlooked and extremely important point when you and Amir start receiving 5 or 6 international engineering awards, as Mr, J. Flutterman was awarded in audio engineering which I will happily provide screenshots you if you would like a copy of them keep technical opinions to yourself but when you and ASR receive those awards ,in status kindly notify me immediately thank you , however, for some strange reason, I don’t believe that’ll ever happen. Some folks never learn , until then, have a good day

These are the caliber of individuals and engineers that I learned from not salesman or BOX pushers with an ASR degree or membership come on give me a break, however if you’re happy, I’m always happy for you I really feel for those rookies that enter your premises only to be driven down a dead end road, almost criminal… in personal opinion, you’re certainly welcome to yours…

If you were giving Absolute attention to precisely what is presently transpiring, Eversolo’s brand new units in model number, Every one of them are using an implementing all ultra linear power supplies quite nicely I might add , Why do you think that is? I can’t wait to hear this one This oughta be good … I patiently await your answer , naturally after conferring with Amire or Whatever name he gos by at present, again, good luck with all that .

 

Just basic technical knowledge which anyone interested in this hobby should make it their business to learn.
Keith

 

Good night Keith every time I see your name, my head starts to throb I see those power supplies are so wonderful. That 80% of them are failing., if you had really taken the time to read, but you don’t, I absolutely recommend , He replaced his A6 power supply from jump Street , as it is going to fail eventually anyway so in standing opinion you may want to install or replace it with a better one, but you don’t look or see logically from any other point of view other than what the ASR gods have told you that’s called being brainwashed where I come from but you’re in the free world that’s up to you Boss No hard feelings, if anything I feel somewhat sorry for you seriously, what toll the world takes on some people,