AIYIMA A07 TPA3255 Review (Amplifier)

[isaac507]

This is the new Aiyima A07 Max
This is the photo of the interior, it mounts better materials, has a better and more refined sound than the old A07.

Aiyima A07 Max Link: https://www.aiyima.com/products/aiyima-a07-max?variant=46847926731028

The volume control potentiometer uses the Taper A da 50kΩ
This is a huge improvement.
This is the first time for an Aiyima product.

High-quality products made in Japan are used for the speaker output filter inductors. (There are 2 sets of 2 black square parts)

The TPA3255 amplifier chip is cooled using a management method of coating that uses the entire cooling houses.
This prevents the accumulation of heat inside the case.

Rubycon 50v 2200uf 105 ℃ produced in Japan is used as an electrolytic capacitor in the power circuit.
The quality of the capacitor is very good.
This capacitor is 50V, but the withstand voltage can reach 60V.
So you can also use a 48v power supply

The integrated circuit of the operational amplifier uses high quality 5532d produced by JRC in Japan.

There is a large rectangular black part in the center of the PC card, this is a relay that commutes on PBTL.

Sorry for my English, but I'm Italian and I used a translator to translate

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Totally a copycat!

I thought aiyima would follow fosi's example and develop a competitive product to challenge V3. However, it seems that they can only resort to copying. Perhaps they don't have their own research and development capabilities! They only know how to imitate others' designs and clone their products.

It appears that aiyima is just a company that sells white label/rebranded products!

 

[Madeintooting]

Aiyima also has another product that's a direct copy of the V3, and I consider this to be an even more shameless clone. Aiyima has achieved some success with the A07, so they should strive to create better products instead of blatantly copying other brands' products.

https://www.aliexpress.com/item/1005006068524783.html

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Different thing entirely, MONO only one speaker output.

 

[Guddu]

Totally a copycat!

I thought aiyima would follow fosi's example and develop a competitive product to challenge V3. However, it seems that they can only resort to copying. Perhaps they don't have their own research and development capabilities! They only know how to imitate others' designs and clone their products.

It appears that aiyima is just a company that sells white label/rebranded products!

Wow… loads of claims for 2 completely different amplifiers because of similar looks.
Pls don’t get me wrong here but This is super common on Aliexpress.
Don’t know really but a few fosi 3255 amps came after A07 which look similar and so would we now call Fosi a copy cat?
Aiyima has many 3255 mono amps from long time so will we call any other similar amp copy of Aiyima?
A07 Max has Mono/Stereo switchable implementation, so will we call any such further amplifier copy of A07 max?

Aiyima still uses 50v caps rather than v63 which Fosi and many others uses, don’t think Aiyima copying would miss it.

Anyways, not defending Aiyima but I think they have made good efforts. , and so as Fosi and others.

Fosi, in their threads, are using this forum for brainstorming and suggestions from ASR and using all this for their business, win win for both manufacturer as well as users.

 

[Talisman]

Wow… loads of claims for 2 completely different amplifiers because of similar looks.
Pls don’t get me wrong here but This is super common on Aliexpress.
Don’t know really but a few fosi 3255 amps came after A07 which look similar and so would we now call Fosi a copy cat?
Aiyima has many 3255 mono amps from long time so will we call any other similar amp copy of Aiyima?
A07 Max has Mono/Stereo switchable implementation, so will we call any such further amplifier copy of A07 max?

Aiyima still uses 50v caps rather than v63 which Fosi and many others uses, don’t think Aiyima copying would miss it.

Anyways, not defending Aiyima but I think they have made good efforts. , and so as Fosi and others.

Fosi, in their threads, are using this forum for brainstorming and suggestions from ASR and using all this for their business, win win for both manufacturer as well as users.

You are actually defending and sponsoring this product a lot on various threads. It's a sin to think badly but you often get it right

 

[Sangram]

98% of people are able to detect any distortion at all** in real music (Klippel listening tests) - it becomes pretty meaningless.

Doesn't seem sufficient reason to not extract as much performance as possible. It's either a lack of talent or cost saving.

 

[Jacob8275]

Wow… loads of claims for 2 completely different amplifiers because of similar looks.
Pls don’t get me wrong here but This is super common on Aliexpress.
Don’t know really but a few fosi 3255 amps came after A07 which look similar and so would we now call Fosi a copy cat?
Aiyima has many 3255 mono amps from long time so will we call any other similar amp copy of Aiyima?
A07 Max has Mono/Stereo switchable implementation, so will we call any such further amplifier copy of A07 max?

Aiyima still uses 50v caps rather than v63 which Fosi and many others uses, don’t think Aiyima copying would miss it.

Anyways, not defending Aiyima but I think they have made good efforts. , and so as Fosi and others.

Fosi, in their threads, are using this forum for brainstorming and suggestions from ASR and using all this for their business, win win for both manufacturer as well as users.

I don't think so, you can carefully compare the internal circuit architecture and cooling systems of Aiyima's new products with those of V3; their striking similarities are evident. Furthermore, even in Aiyimas' promotional images on Amazon, you can find numerous resemblances to V3. If we fail to respect innovation, it's possible that consumers will ultimately bear the brunt of the consequences.

 

[T&T]

I don't think so, you can carefully compare the internal circuit architecture and cooling systems of Aiyima's new products with those of V3; their striking similarities are evident. Furthermore, even in Aiyimas' promotional images on Amazon, you can find numerous resemblances to V3. If we fail to respect innovation, it's possible that consumers will ultimately bear the brunt of the consequences.



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Yes, looks almost the same, but Fosi stereo have 2 63v capacitors, Aiyima is mono have 2 capacitor of 50v per channel so 100v per channel.

 

[Guddu]

I don't think so, you can carefully compare the internal circuit architecture and cooling systems of Aiyima's new products with those of V3; their striking similarities are evident. Furthermore, even in Aiyimas' promotional images on Amazon, you can find numerous resemblances to V3. If we fail to respect innovation, it's possible that consumers will ultimately bear the brunt of the consequences.



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At the end, I must respect what you think or anyone else for that matter and thank you.

But I think you are missing my point totally.
Fosi v3 isn’t the first product putting IC on bottom side of PCB and using heat sink/bottom plate/entire chassis for cooling.
I am IT professional, worked with IT equipment manufacturers for long time and seen this many many times.
I am sure you might have come across several mini pc type unit or single board computers units using it from years.
There is nothing original or copy, these all are ideas which everyone is free to use.
I mentioned Aliexpress because this thing so common there. Many even sell complete copy of manufactures like marantz etc.
They all (manufacturers/assemblers) do use whatever gets popular, market driven.

Last few posts were off the topic with lesser value add to the thread, so apologies.

 

[TonyJZX]

to me aiyima does look like it is straight cloning the V3

however saying that... ok? i mean this is the game they are playing

chinese copying other chinese is a situation topping are famous for complaining about

if aiyima can make a reasonable facsimilie at $43 then good for them?

its hard for me to get upset at aiyima or sorry for fosi because we all know china is the truly the wild wild west here

it would actually be amazing is the Aiyima V3 is benched to see how far it can come up to a real V3.

I would also say its Aiyima more likely trying to grab some more local sales... i doubt the fake V3 is going to leave their shores so much?

so its Aiyima trying to put one over the local Chinese audience? Maybe to them $43 vs. $80 is a big deal to a mainland chinese consumer pocket?

To me this is more an impetus for Fosi or any 'originater IP' to innovate. Bring out the next iteration which Fosi is actually very good at.

"the game is the game, cant stand still"

 

[Guddu]

to me aiyima does look like it is straight cloning the V3

however saying that... ok? i mean this is the game they are playing

chinese copying other chinese is a situation topping are famous for complaining about

if aiyima can make a reasonable facsimilie at $43 then good for them?

its hard for me to get upset at aiyima or sorry for fosi because we all know china is the truly the wild wild west here

it would actually be amazing is the Aiyima V3 is benched to see how far it can come up to a real V3.

I would also say its Aiyima more likely trying to grab some more local sales... i doubt the fake V3 is going to leave their shores so much?

so its Aiyima trying to put one over the local Chinese audience? Maybe to them $43 vs. $80 is a big deal to a mainland chinese consumer pocket?

To me this is more an impetus for Fosi or any 'originater IP' to innovate. Bring out the next iteration which Fosi is actually very good at.

"the game is the game, cant stand still"

Makes me laugh, but you might be spot on.

Let’s ask @AIYIMA @AIYIMA:GUO
(Sorry, if these are duplicate or ‘copy’)

 

[antcollinet]

At the end of the day, these are all chip amps using the same chip.

There are only so many ways to cook that rabbit. There are going to be similarities.

 

[mlieber507]

It looks like the Aiyima A07 Max might compete with the Fosi M03. They are both Mono/Stereo units but the Aiyima is specified for a lot more power output as a result of its 48 volt Vmax rating. Maybe its more than just another me-to product.

 

[escape2]

It looks like the Aiyima A07 Max might compete with the Fosi M03. They are both Mono/Stereo units

M03 is mono only.

 

[Jacob8275]

Different thing entirely, MONO only one speaker output.

This one is stereo.

https://www.aliexpress.com/item/1005006064522057.html

 

[AndreyBuchin]

AIYIMA A07 and Fosi V3 amplifier board are similar, A07 have sold about 3 years, and the V3 start to sell 2023.

 

[ModDIY]

The A07 + has 4 screws on the front plate...not the V3...;-)

 

[robertospeed]

Aiyima is 6 to 8dB behind the Fosi V3's distortion according to the measurements on this site. Also a little bit behind in SNR. These point to poor implementation overall and ground return paths. Component quality is very minor in terms of noise contribution. Maybe a small amount of distortion, but in fourth or fifth decimal place.

There is close to zero difference between the A08, A07 and A07 Max in this regard. Sound is exactly the same. They replaced some of the Samxon capacitors with Rubycon. That is not sufficient to bring the A07 Max closer. The layout and implementation is still very far away, and 'More Refined' is meaningless in any context.

To put these numbers into context, the A07 delivers 2.2 dB less undistorted output at the same 32V supply than the Fosi. 2.2dB is actually quite a bit in overall terms, just shy of a full class of amplifiers.

OK thanks

 

[saberger0357]

Today I hooked my 07 w/ 48V PS up to a pair Polk RTA 12's speakers. These speakers can by spec take up to 500 watts so while they're not difficult to drive, they do really open up with higher current, higher watt amps. I've been using a couple different Crown amp with them, and they sound great with them. But I really am blown away by how great the tiny, modest 07 sounds with the 12's. The 12 excel with mids, pretty decent bass and a sparkling top end. With the right amp, they also throw a pretty sizeable soundstage. Suffice to say I'm missing nothing and experiencing the best these speakers have to offer with the 07. Much like a post I made yesterday in the thread about the Fosi V3 when I connected to it to a pair of Klipsch La Scala's , I'm really quite shocked at how good these amps are. And like I said in the other post, I would be quite comfortable using these giant killer if and when I ever sell my various McIntosh amps.

 

[peng]

Today I hooked my 07 w/ 48V PS up to a pair Polk RTA 12's speakers. These speakers can by spec take up to 500 watts so while they're not difficult to drive, they do really open up with higher current, higher watt amps. I've been using a couple different Crown amp with them, and they sound great with them. But I really am blown away by how great the tiny, modest 07 sounds with the 12's. The 12 excel with mids, pretty decent bass and a sparkling top end. With the right amp, they also throw a pretty sizeable soundstage. Suffice to say I'm missing nothing and experiencing the best these speakers have to offer with the 07. Much like a post I made yesterday in the thread about the Fosi V3 when I connected to it to a pair of Klipsch La Scala's , I'm really quite shocked at how good these amps are. And like I said in the other post, I would be quite comfortable using these giant killer if and when I ever sell my various McIntosh amps.

No surprise there, those miniamps have very low distortions, and high current talks are mostly based on misconception to a large extent. The fact is, as long as your amp is not clipping, it is producing the voltage your big RTA12 demands and will therefore produce the spl your need. So it is more about the spl you need at your listening distance.

 

[-Jim-]

My youngest son has been bugging me from time to time for over a month (since my birthday) to give him a list of something to buy me as a birthday gift.
I really don't need anything, but he kept pushing, and said he was going to buy me something really weird soon if I didn't give him something.

So a while ago I was on Amazon, and as I had been looking at this AIYIMA Amp for a cyberbuddy, I went to see it again. Amazon.ca had it on a 15% discount to $86.82 CAN ($64.33 USD) so I sent my son the link.

My Atmos system is currently configured as a 5.2.4 due to the Denon AVR "only" having 9 channels of amplification, but it will process 11 channels. During our Reno, I pre-wired for 7.2.4 and wall mounted the surrounds even though I never powered up the Rears since. I've been toying with the idea of getting a separate Amp just for the rears for ages, but the present configuration seems great just the way it is, and I could never justify it to myself.

Amazon delivered it at 3:15 the next day but I didn't know for sure what it was as it was addressed to my son; and he often gets stuff as he's got a Prime membership. He gave it to me after dinner.

I hooked up the AIYIMA Amp to a pair of 8 ohm bookshelf speakers we've had in storage since the big Reno of 2018. For input I connected it to a NUC (PC) I put together last summer to get familiar with Windows 11. I plugged in a portable hard drive into the NUC with all my FLAC and MP3 back-up tunes on it. It's pretty near field but sounds pretty good considering the gear.

I've been driving it continuously at pretty decent volume levels for well over an hour (multiple times) and the AIYIMA has been flawless and isn't even warm. According to my Thermal Gun the temperature rise is 5.2° C starting from a 20° C ambient.

I'm happy with it. Enough to look for a window to install it to drive the Rear Surrounds in the Atmos System in the Games Room. But for now I'll keep listening / testing out in the Man Cave.

Thanks for the review and all the comments.

Gents, I thought I should tidy this up as it's been quite a while since I posted in this thread.

I moved the A07 to our Atmos System conceptually to be power the rear Atmos pair fed signals by the Denon AVRX-4400H HT receiver. I figured that would round out the system, and make it function as a 7.2.4. Well I was wrong. The Denon won't let you configure itself like that, and I would have known it if I had read the manual beforehand.

Anyway, I ended up using the 07 to power the Rear Speaker pair which have been installed and not powered since the big Reno of 2018. (Hence the 5.2.4 setup described above.) The addition of this pair adds just a little bit to the sound envelope that was already present when in operation. Just a bit, nothing too major. Of course I re-ran Audyssey in this new configuration. Very routine.

I have the whole system (less Subs) plugged into a smart power bar which triggers off the Denon. That way the remote of the Denon turns the whole thing off and on, and I don't have to manually switch the 07 at all.

So far the 07 been working flawlessly in this application. And I'm very pleased with it.