Eversolo DMP-A6 Streamer Review

[bargainguy]

As an early adopter of the A6, I find these comments about upgrades interesting. Trying to upgrade transparency. To what?

I cannot hear the noise floor on my A6. According to Amir's measurements, SINAD is ~115 dB via the RCA outs I use.

So if I tried to upgrade my A6 with a different power supply, I'd be admitting I can hear differences at ~115 dB down, and there would be benefit to doing this.

Anyone here with hearing like that? Can folks here distinguish at 115 dB? Or is this all just wishful thinking, and ability to hear deeply diminishes well before that?

I suspect the latter, but have no empirical evidence, so I'll leave that question to more qualified ears.

 

[Purité Audio]

Obsessive/compulsive mixed with technical ignorance, it is a rich seam for charlatans.
Keith

 

[ahofer]

Can folks here distinguish at 115 dB?

no

 

[Highvolt60]

I did a diy LPS modification a while ago. My approach is a bit different from beatechnik even the LPS core is also coming from LHY. Since i only intended to use the A6 as a purely transport, i'm not concern too much about the DAC and analog section. The way I implemented the LPS modification is only feeding a +12V LPS but eliminated the -12V power supply. I do believe the approach from beatechnik is more comprehensive which feeding both +12V and -12V regulated LPS to the A6 taking care both the digital and analog portion as a plug and play solution.

I don't have any testing data showing any improvement. In my system to my ears the difference is a better imagine separation, more details and i wouldn't feel tried for hours listening even in a higher sound pressure. The bottom line is I had fun with what i did for the LPS modification.


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So the std PS is only +/- 12v ? I guess this is one area that Eversolo went cheap.
Best practice is to have separate Analog and digital power supplies.
The fact that you can run digital only off the +12v means for sure there is additional regulation down to 5v and/or 3.3v for the digital section (although both are on the same ground). Depending on the loop bandwidth or ripple rejection of those regulators Vs frequency, feeding them a cleaner +12v may not matter ?

In your case you may or may not have improved noise/jitter on the Spdif or USB outputs (not sure what you're using).
Unfortunately, no one has yet measured the jitter on the digital outputs on the DMP-A6...

 

[Werther44210]

@ High voltage 60,
I agree with you, what is generally done on small devices with not a very large power supply, an external power supply, is what this Hi-Fi store offers with the Node, Farad external power supply, sold together as a kit ( see PJ which I translated into English), it also offers this kind of complement with the small Chord Quest DAC.

 

[restorer-john]

Obsessive/compulsive mixed with technical ignorance, it is a rich seam for charlatans.
Keith

Keith, what is the feedback from customers who have bought the Eversolo from you?

 

[Purité Audio]

Almost totally positive, one customer had a flickering screen which was down to a loose connection , Misue promptly sent a ‘how to’ video and the customer repaired the unit himself ( I did offer to repair).
No other complaints about the hardware, you can see on this thread just how many user case scenarios there are so there have been gripes about firmware releases and could this or that be included/improved.
I use one here and it has been flawless I use it simply as a Roon endpoint.
There are a few decent inexpensive streamers Wim ‘Pro’ looks good just choose on features you require.


Keith

 

[doctorf]

I bought one from Keith.
IMHO it’s a fantastic unit and I could not be happier with it.
There have been a few niggles.
Tracks ending early occasionally and occasional missing the start of tracks is annoying at times.
And the lack of included remote is crazy. I ordered one from Zidoo and it’s well worth having.

 

[markrubin]

I like it too: I would love to see a rack mount accessory for the DMP-A6

 

[amrutmhatre90]

My stack for now, loving how it sounds!

 

[homan272]

So the std PS is only +/- 12v ? I guess this is one area that Eversolo went cheap.
Best practice is to have separate Analog and digital power supplies.
The fact that you can run digital only off the +12v means for sure there is additional regulation down to 5v and/or 3.3v for the digital section (although both are on the same ground). Depending on the loop bandwidth or ripple rejection of those regulators Vs frequency, feeding them a cleaner +12v may not matter ?

In your case you may or may not have improved noise/jitter on the Spdif or USB outputs (not sure what you're using).
Unfortunately, no one has yet measured the jitter on the digital outputs on the DMP-A6...

Yes, the output of the original power supply in +12V 2A and -12V 200mA. It’s not ideal and the best way should be a separated power trace for each of analog and digital. The only purpose of the -12V is feeding to the negative supply of the 4pcs dual opamps OP1642.

In my case only feeding a +12V LPS but get rid of the -12V power supply. The +12V still have to go the positive supply of the opamps but also distributed to different LDOs further step down to 3.3V and 5V for the display and all other digital components including the DAC. I even considered to eliminate the power traces going to the opamps and DAC in order to further eliminate the interference. I didn’t go for that route because I don’t know how’s the CPU going to response if no DAC can be detected. I don’t want to take the chance and brick the A6.

Anyway, feeding a cleaner +12V to the LDOs could be more or less the same as feeding a 110V/220V to the devices from sort of power regenerator instead of the wall socket. Someone believes it helps others may think it’s snake oil. To me I tend to believe the cleaner the better.

Again, I’m not an expert and I don’t have any testing data support the claim but I enjoy the result and had fun with the modification.

 

[lordhumungous]

My only concern about this streamer is it’s on Android 11 and the current upcoming version of Android is 14. I hope Eversolo plans on updating the Android version like Ibasso has done with their digital android music players .

 

[auronthas]

My only concern about this streamer is it’s on Android 11 and the current upcoming version of Android is 14. I hope Eversolo plans on updating the Android version like Ibasso has done with their digital android music players .

IMO, I would not worry about Android 11 as long as the music streaming apps or compatible , not planning to install to many "fancy" or APK files apps.

Also I use A6 mostly as Roon Endpoint. Similar like portable DAP, some only support upto Android 9 or 10.

 

[kacos]

it’s on Android 11

some only support upto Android 9 or 10

Why don't they use the latest version to start with?
The least benefit would be the updated security & OS features (eg WPA3).
Last I checked Android is free, isn't it?

 

[auronthas]

Why don't they use the latest version to start with?
The least benefit would be the updated security & OS features (eg WPA3).
Last I checked Android is free, isn't it?

It's all due to price I think ... these players quantities are much lower than smartphone quantities. The microprocessor that support for Android 11, 10 or 9 is cheaper. Even latest and pricey Sony DAP WM1ZM2 is on android 11.

 

[kacos]

The microprocessor that support ..

Ah, didn't account for that - valid point

 

[auronthas]

Ah, didn't account for that - valid point

Furthermore this is just music streaming network player, it's not so "demanding" as smartphone with heavy-duty tasks. So long the music apps can be supported.

 

[kacos]

Furthermore this is just music streaming network player, it's not so "demanding" as smartphone with heavy-duty tasks. So long the music apps can be supported.

it's still connecting to the internet & to your local network in most cases, so any OS security update should be welcomed.

 

[auronthas]

it's still connecting to the internet & to your local network in most cases, so any OS security update should be welcomed.

What I meant was the security and android firmware update would be supported until the limit of microprocessor.

 

[yllanos]

Why don't they use the latest version to start with?
The least benefit would be the updated security & OS features (eg WPA3).
Last I checked Android is free, isn't it?

They mentioned in this very same thread they spent almost three years on design + development. I'm sure they started with an up to date Android version, but got caught on new releases during the process.

I'm sure security releases could be addressed. Otherwise is not a big deal.