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Aiyima A80: TPA3255 Stereo Amplifier with ESS9038Q2M DAC: First Look

You are not only utopian but derogatory, which is embarrassing for others :confused:

If you want to do it your way, let others do it as they like.

Enjoy your music since it is said to soften morals ("adoucit les mœurs" <- French expression):

you need it badly and it is not a 'PEQ' that will help you with that :rolleyes:

Good luck to you.
.. I was making a serious comment but you just kept on saying random silly stuff with no real arguments, so what am I even supposed to answer? The only decent argument I got for not implementing PEQ is that there will be a need to make some software for it as well.
And sure if you don't want to use a PEQ then don't, I just don't understand why people that are interesting in sound quality don't use them.
 
Don't make me say what I didn't say (... you don't want to use PEQ ...) :confused:

I'm just saying that what you personally want doesn't NECESSARILY match everyone's needs.

All people can listen to music as they want as long as they find pleasure in it and it will obviously NEVER depend on your personal 'will', nor on your choices and even less on your bank account... ;)
 
Don't make me say what I didn't say (... you don't want to use PEQ ...) :confused:
Yes you're right, sorry about that!
I'm just saying that what you personally want doesn't NECESSARILY match everyone's needs.

All people can listen to music as they want as long as they find pleasure in it and it will obviously NEVER depend on your personal 'will', nor on your choices and even less on your bank account... ;)
Yeah there is a general lack of knowledge among many people in any hobby, but it's sad to see even people that's been in to a audio for many many years that refuses to use EQ because that's what the "artist intended" and at the same time claim that cable lifters make a lot of difference and that vinyl is technically better than digital. I mean they still need that EQ but just don't know it ;)
 
So my A80 arrived from Amazon yesterday and I have been playing with it this morning. I would say it's nice enough - would make a good first DAC / Amplifier for someone and the VU meters are fun - see later for a short video.

But, I do see in the manual, Aiyima own AP dashboard results and they are a disappointing compared to their Aiyima A70 and the latest Fosi V3 Amplifiers - basically back to the level of the A07 familiar (so I guess not bad in audible terms but definitely room for improvement) - but maybe the electronics for the screen cause some extra internal noise:

1734781141609.png


Here are some photos of what you get:
IMG_3735.jpg

So you get an optical and usb cable (with adapter) which is nice - again for someone starting out:
a80-boxcontents.jpg
\
Getting a 48V power supply is good:
a80-powersupply.jpg


And the remove is basic (but sort of needed as the menu system is a bit fliddly using the "power button" to adjust navigate the menu structure:
a80-remote.jpg

Anyway here is a brief video with my WiiM Ultra to give people and idea of the size of the screen - since I can't upload video here this is an animated gif. So please excuse the low res output of the GIF.

a803.gif

It using optical in the video above- though ultimately I think I will set this up with my WiiM Pro (as it has a better DAC than the WiiM Pro) - and obviously I have access to PEQ within the WiiM Pro.

Anyway, I will play around some more over the next few days
 
My a80 arrived today and the first hours of testing are rather disappointing. It was supposed to replace a70 stereo with 48v10a power supply, but I can't really get rid of feeling that it's a downgrade in sound. It looks nice and I like the visual screen, but the sound took too big of a hit to make it worth it for me. I don't have a way for more professional testing with graphs, however I trust my ears... The amp gets very hot too, especially in comparison to A70 that is just warm while in use.
My setup in both cases was wiim pro plus (optical) - > avr (preout rca) - > amp.
 
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So my A80 arrived from Amazon yesterday and I have been playing with it this morning. I would say it's nice enough - would make a good first DAC / Amplifier for someone and the VU meters are fun - see later for a short video.

But, I do see in the manual, Aiyima own AP dashboard results and they are a disappointing compared to their Aiyima A70 and the latest Fosi V3 Amplifiers - basically back to the level of the A07 familiar (so I guess not bad in audible terms but definitely room for improvement) - but maybe the electronics for the screen cause some extra internal noise:

View attachment 415417

Here are some photos of what you get:
View attachment 415418
So you get an optical and usb cable (with adapter) which is nice - again for someone starting out:
View attachment 415419\
Getting a 48V power supply is good:
View attachment 415420

And the remove is basic (but sort of needed as the menu system is a bit fliddly using the "power button" to adjust navigate the menu structure:
View attachment 415421
Anyway here is a brief video with my WiiM Ultra to give people and idea of the size of the screen - since I can't upload video here this is an animated gif. So please excuse the low res output of the GIF.

View attachment 415422
It using optical in the video above- though ultimately I think I will set this up with my WiiM Pro (as it has a better DAC than the WiiM Pro) - and obviously I have access to PEQ within the WiiM Pro.

Anyway, I will play around some more over the next few days
The A70 features a simplified analog circuit design, which is straightforward and has fewer sources of interference, allowing it to deliver a purer signal output. In contrast, the A80 offers a wider range of input options, including USB, optical, coaxial, and Bluetooth. These multiple input signals require processing through a digital-to-analog conversion chip and are equipped with a display screen driver circuit, and these additional components may introduce potential sources of interference.
 
My a80 arrived today and the first hours of testing are rather disappointing. It was supposed to replace a70 stereo with 48v10a power supply, but I can't really get rid of feeling that it's a downgrade in sound. It looks nice and I like the visual screen, but the sound took too big of a hit to make it worth it for me. I don't have a way for more professional testing with graphs, however I trust my ears... The amp gets very hot too, especially in comparison to A70 that is just warm while in use.
My setup in both cases was wiim pro plus (optical) - > avr (preout rca) - > amp.
My a80 arrived today and the first hours of testing are rather disappointing. It was supposed to replace a70 stereo with 48v10a power supply, but I can't really get rid of feeling that it's a downgrade in sound. It looks nice and I like the visual screen, but the sound took too big of a hit to make it worth it for me. I don't have a way for more professional testing with graphs, however I trust my ears... The amp gets very hot too, especially in comparison to A70 that is just warm while in use.
My setup in both cases was wiim pro plus (optical) - > avr (preout rca) - > amp.
It is a common phenomenon in all electronic products that the efficiency of the amplifier chip decreases after prolonged high-power operation. While this decline is inevitable, the extent of the decrease is typically very small and has minimal impact on sound quality. It can be said that your ears are highly sensitive, allowing you to detect this subtle change.
 

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is there any picture shoing the PFFB components on the A80? there are pics of the output filters but they just show the usual non PFFB components, where is the Zobel Network??
 
thanks, yes, PFFB is clearly there, at least one half, so the other half, basically the Zobel Network will be somewhere too, very likely made of a smd resistor and smd ceramic cap.
Often the needed extra Zobel is next to the normal output caps, and there is nothing to see.
anyway, it will/should be there somewhere.
 
I think there are few things worth discussing which have been raised in this thread, but request is to be more meaningful and informative than being argumentized.

@ICIETDIYEUR
You are correct. TRS input is converted to single ended and then passed to NJW1194, but what's wrong with it? Is it not needed if Volume Control is provided to TRS input?

About the SINAD shown on the A80 product page: Aiyima have posted SINAD from RCA input, which has been around similar numbers for many of their other amplifiers.
Digital and TRS inputs might have different performance - better or worse but no one can tell without measurements.
@AIYIMA It would be meaningful and informative if you can get measurements for different inputs than just RCA.
 
Hi Guddu.

I simply mean that if a NJW1195A chip had been used then the signal would have remained FULL symmetrical from the inputs, which is stated in the product description but is wrong in reality as we see here.
 
Hi Guddu.

I simply mean that if a NJW1195A chip had been used then the signal would have remained FULL symmetrical from the inputs, which is stated in the product description but is wrong in reality as we see here.
Correct.
@AIYIMA You should at least update the information on the product page. And if you do, then please also update information and definition of PFFB as well. It’s easy to find on google.
 
Correct.
@AIYIMA You should at least update the information on the product page. And if you do, then please also update information and definition of PFFB as well. It’s easy to find on google.
① After converting the TRS input to single-ended, the signal is transmitted to the NIW1194 (this part is correct). This model uses soft control for volume adjustment, so an electronic volume control IC is required.
② The signal-to-noise ratio is specified for the RCA input mode; the values for other input modes are similar, typically 1-2 dB lower than the RCA input.
 
So my A80 arrived from Amazon yesterday and I have been playing with it this morning. I would say it's nice enough - would make a good first DAC / Amplifier for someone and the VU meters are fun - see later for a short video.

But, I do see in the manual, Aiyima own AP dashboard results and they are a disappointing compared to their Aiyima A70 and the latest Fosi V3 Amplifiers - basically back to the level of the A07 familiar (so I guess not bad in audible terms but definitely room for improvement) - but maybe the electronics for the screen cause some extra internal noise:

View attachment 415417

Here are some photos of what you get:

So you get an optical and usb cable (with adapter) which is nice - again for someone starting out:

Getting a 48V power supply is good:


And the remove is basic (but sort of needed as the menu system is a bit fliddly using the "power button" to adjust navigate the menu structure:

Anyway here is a brief video with my WiiM Ultra to give people and idea of the size of the screen - since I can't upload video here this is an animated gif. So please excuse the low res output of the GIF.


It using optical in the video above- though ultimately I think I will set this up with my WiiM Pro (as it has a better DAC than the WiiM Pro) - and obviously I have access to PEQ within the WiiM Pro.

Anyway, I will play around some more over the next few days

Seems like Aiyima have managed to make some improvements, the updated documentation shows 86 dB+ SINAD which is more inline with their other products for RCA input like A70.
May not seem huge but still......
1738066929278.png


Market is tough but there is always some space for a decent product and I find it more than decent.
 
Here are some more user level details, if you like:

 
Well, the aux out can be used for a sub, right? But I too would have thought that a HPF would be an option by now. Makes RSL look like innovators with their integrated amp...
Dayton Audio also has one. Emotiva too. Sabaj a30a also has the option. Arylic also has it in some of its units.
 
No HPF is a serious mistake here. The only current solution to this is a Wiim Ultra/Amp/Amp Pro in the budget category.
Would have replaced my AO300 if this had a HPF.
You have several options but I'm sure all these brands developing the 3255 chip will get there soon.
 
I think paired with a WiiM Ultra this Amplifier will provide a very nice system. The Ultra has the subwoofer output and bass management with room correction EQ, LPF and HPF filters and a nice app to configure everything. Then adding this Amplifier via a digital output from the Wiim Ultra gives you decent power and nice VU meters. And you can use the trigger output from the WiiM Ultra to wake up this amplifier.
Why not go with a wiim amp pro then? I don't think trigger in in a80 works with wiim products. That's what's stated in the pics in ayima's website at least.
 
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