So just where is the preamp?

There literally can’t be a difference,
https://www.puriteaudio.co.uk/post/eversolo-a10-versus-a8

But I suppose it’s nice that you believe there is one.
Keith

 

Do you own a Ducati by any chance? They're doing 'quite well' in MoToGP, and WSBK!

 

What a dumb thing to say! 'Literally' is one of the most inapropriate and overused things said recently, and that applies in this case. To say that because things measure the same, they will sound the same, is plain dumb, not to mention completely wrong! Your A8 v A10 'review' is,,,not! Get back to ASR Keith, and, please, stay there.

 

Quote,
‘To say that because things measure the same, they will sound the same, is plain dumb, not to mention completely wrong!’
Keith

 

He says tons of ignorant, condescending and incorrect things such as on his website for Putrid Audio that he references above saying, "their sound quality cannot be improved upon at any price, despite what you may read elsewhere." If you ever hear Wadax's units you will immediately know his is a package shy of a full load.

 

With all the respect, IMHO you are really going a little too far, now... Assumption are such, on every side. But if they can be backed-up they become scientific facts, and to disprove them as such, requires the same (at least) amount of analysis it took for them to become facts.

 

My observation is that the full EQ correction system is only available on the analog output when the active R-2R control is enabled. Then you have both level control on the XRL outputs and in the output amplifier. And you can have an EQ-corrected signal. With a good quality tube, apply a minimum correction of +6 dB at 30 Hz and +3 dB at 14 kHz, with the rest linear, and you'll hear a new dimension of music.

 

And that's what EverSolo was all about. Furthermore, you can adjust the optimal sound level at the amplifier input depending on the source. For example, Tidal broadcasts at a higher level than Spotify.

 

This review is very weak in terms of content and does not deserve wide publication.

 

I hope some A10 experts will chime in if my understanding is wrong. What I understand is that the preamp (the part with gain) is only on the analog input to analog output. If you use the internal streamer or any digital input what you are getting is DSP and DAC with an attenuation. That means to me that there is no gain applied to the signal and the max output is 0 dB which represents the full output of the DAC. For me this is problematic. What I have done with my system is to connect the A10 to and external DAC connected to an external tube preamp. Basically giving up the DSP and room correction. I now have gain and I run my subs out of the external preamp. The subs are SVS and have their very nice digital controller and I am happy with the result. I recall that the analog input to output preamp in the A10 has 12 dB of gain. I wish that circuit was available to the DSP / DAC outputs. I am somewhat mystified by some of the design choices in the A10. If I am missing something, I would appreciate the input.

 

Eversolo made the decision to keep the analogue input to output completely analogue, +10dB of gain I believe.
Keith

 

Understand the thinking there but why does the use of the preamp need to be mutually exclusive. DAC out to preamp would not violate the design choice of analog path being completely analog it just needs a routing circuit. Makes me wonder if there are 2 modes for the volume control - attenuator for the digital path and potentiometer for the analog path. I wish there was more documentation on how this all works. I understand the PEQ works on digital outputs and recently read the DSP and PEQ work on USB outputs. Having the option to route DAC output to preamp would seem like a useful feature.

 

Gentlemen, until an engineer from EverSolo joins this discussion, the only option left is trial and error.
If someone needs this knowledge now because "they have to or they'll choke," they should try to see if the EQ works by bypassing the R-2R control.

 

@Tedy
Best.Comment.Ever.

 

So to drift back on topic..lol .
I just purchased last month the A10.
To find again the Eversolo products are not true Preamplifier..
Before you chime in with negative response or it work with your Amplifier..
It's not just my conclusion.
I cannot drive all Class A Amplification..
True story
And DSP can be quite harmful to your speakers .
Lol found out the hard way .
So I started with the HiFi Rose RS151...Loved the unit
Loved the sound. And it totally rocked
Next thing the power supply started acting funny
Well she went back to Korea for evaluation and was told it doesn't work with Krell Class A stuff..lol
They gave me a complete refund. .after two diamond Tweeters down .. Yep cost more the the Rose.
So Thinking how did my old Cambridge Audio CNX v2 work so good . So back in she went . Good sound , warm but missing detail..
Low and behold My Friend Rob Fritz Recommended Eversolo DMP A10 so I said ship it
So first week it was awful.. flat and lifeless. No punch
Couldn't get her up to 5 watts of a 600 watt Amplification. So My friend hooked me up with a very nice lady that represents Eversolo..
Sweet lady very knowledgeable!
Yep not compatible to my Amplification...
Awe.
Solution 1 Placed my old Cary Preamplifier back in the mix...WOW... whole new word!
But my Cary was always had an appeal that I dislike.
Not to elaborate. So I purchased a SPL Elector
Game over for now...lol Very nice combo ..
The Eversolo is an incredible unit very defined !
Except DSP.. I not quite ready in my opinion.
So I don't use it . I don't need it
My CD all are incredible to listen to.
Now all things digital go through the A10
Then to the SPL then the Krell!
Happy Music and Rock on !

 

Steve

A voltage gain of 10 dB means that the output voltage is approximately 3.16 times the input voltage. You need to think before you complain.

If the output level at the normal streamer level is 0.5V, then 3.16 times gives only 1.58V. You won't be able to drive most power amplifiers with that 1.58V voltage. You need about 2-3V at their input. You've made a logical error here.

EverSolo doesn't point out for nothing: the gain is a maximum of 10 dB. In my opinion, this analog output level control is used to smoothly adjust the matching of the DMP-A10 with any preamplifier. But it's not intended to directly control the power amplifiers. My DMP-A10 is connected to a Luxman preamplifier via XLR, and the optimal level is -34 dB on the DMP-A10's preamplifier level indicator.
The whole thing sounds fantastic.

 

Teddy, stop already
If you read the post you would realize it wasn't me that made any statement of its ability or otherwise..lol
Eversolo and I quote there product is simply not robust enough to drive my Krell Amps..
And believe me we tried..lol
The easy fix was through a Preamp in line..
Problem solved..
Take a chill pill
I'm still liking the Eversolo unit....
Music to my ears....

 

This forum is a source of advice for many. Therefore, it doesn't matter much whether I recover.

Perhaps I should now analyze the effect of cucumber curvature on the Fourier Transform approximation in the EverSolo DAC.

 

You get right on that cucumber assessment

 

Whoah! What am I reading about the A10 damaging speakers because of incompatibility with certain amps? I’m here getting ready to power up a new tube amp and now I’m pausing…