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Aiyima A07 Max - Aiyima's new TPA3255 amplifier with mono/stereo output

what ? Import fee and shipping ? Where ?

AIYIMA A07 MAX on audiophonic no powersupply 78 €

i just told you where, look at europe deal thread on this forum.
 
I think if you cant find it you shouldnt order on the internet. Took me 3 seconds to click the 48v mate...
2023-11-12 10_21_37-AIYIMA A07 MAX Amplifier Home Audio 300W X2 TPA3255 Class D Power Speaker ...png
 
I bought another one for 60 USD with with 48V power adapter.
How can i buy one for that low price i dont live in usa and i would need a european plug for the psu and is the only 240 volt psu is when you buy the version with a eu power supply with 2 pins or what ever it's called ?

How about import fee and shipping ? closer to 100 euros total than 50 euros ?

according to my picture there no way i can get one for under 100 euros total
 
Как я могу купить его по такой низкой цене? Я не живу в США, и мне нужна европейская вилка для блока питания, и это единственный блок питания на 240 В, когда вы покупаете версию с блоком питания ЕС с 2 контактами или как там он называется. ?

Как насчет импортных сборов и доставки? ближе к 100 евро всего, чем 50 евро?

судя по моей фотографии, я никак не смогу получить его менее чем за 100 евро
You use promo code? You need choose buy now and you see final price.
 
Promo code ? What about psu voltage 120 or 240, shipping and import fee ?
 
Unlycky person ?
2023-11-12 14_34_26-Aiyima Audio A07 Max Stereo Power Amplifier 300W x2 TPA3255 Class D Bridge...png
 
I got an expedited delivery of a A07MAX and I have been listening and comparing it with my Fosi Audio V3.

View attachment 316895

And, I thought I would share my initial opinions:

So for me so far the advantanges of the MAX compared to the Fosi Audio V3:

1. New Design and the Board layout
I think the wider design on the MAX allows allot more space at the back of the Ampflifier - meaning cables are well separated - see photo below. They effectively redesigned the MAX so it's wide instead of deep.
2. Nicer binding Posts
The “offset” of the binding posts is much better and I think they have much higher quality binding posts than the V3,
3. Mono mode (and the switch)
This is a great option IMO - it shows off the upgradability - i.e. start with 1 A07MAX in stereo, then buy a second one and setup each as a Mono Block Amplifier (with a pre-amp controlling the volume)

View attachment 316896


The advantages of the V3 compared to the MAX:
1. Volume control has a “logarithm” taper Pot - so it has more subtle control over lower volumes
The MAX volume is nicer than previous Aiyima Amps but linear on the V3 really nice and it is very subtle with lower volumes
2. Lower THD+N / Higher SINAD value
The Aiyima published SINAD results for A07 MAX are slightly behind the V3 as far as SINAD / THD+N. Note: I did ask them to send a MAX to Amir for some official measurements so we can get AP definitive results - but I imagine Aiyima published results are accurate as they are in line with previous measurements.
3. Some may like the vent hole pattern on the top of the V3 - obviously both have the vent holes on the bottom and on the sides but the V3 vents on the top have a nice pattern ( though I do wonder about stacking components with the V3).

Note: I personally think both companies should look are providing pre-amps with their new 'house' designs (maybe ultimately DACs) as I would buy a pre-amp especially to control the volume of either as mono-blocks but especially if the pre-amp had a similar design.

I did some basic REW FR and distortion measurements matching the V3 with the MAX and mostly its no surprise they were exactly the same (this is using the same equipment and volume matching) - I did use the 36V that came with the MAX on both then I swapped the power supply to a 48V one I got with my V3 and used for both for some extra measurements) :

View attachment 316897
This was using the same 36V and volume matched they have identical FR (in my room - excuse the lack of Room correction and EQ as I kept the "stack" to a basic source, the amplifiers and speakers. Obviously they sounded the same to me.

Then I swapped the power supply (and thought it might be interesting to look at distortion - though again its almost identical):

A07-MAX - distortion:
View attachment 316898

Fosi Audio V3 distortion:
View attachment 316899]]

I haven't take the MAX apart yet - though I did briefly open it up to see what might be accessible without removing the volume:
View attachment 316900
I plan to do more comparisons over the next few days and I will report back.

So in summary, so far I think it's a very nice upgrade over the A07 and IMO having this competition between manufacturers is a great way to move the industry forward.
Teardown
 
You only get the real price when you about to check out besides that the difference between stereo vs mono is less than 3 db, it's not even 3 db

So why use it in PBTL Mono ?

2023-11-12 10_41_01-Aiyima A07 Max - Aiyima's new TPA3255 amplifier with mono_stereo output _ ...png
 
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@gasolin75 Fosi is little cheating and show to us 0.003% , they measured THD , aiyima measures THD+N. I show you measurement of Fosi V3 THD+N its the same like of A07 MAX/I don't really like when people say, Fosi is better it have 0.003%, Aiyima has 0.007%
 

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0.003% or 0.007% won't make a difference, be noticeable
 
That is the negative effect brought about by the recent numerical competition in the audio industry!
I don't trust the numerical data displayed by Chinese audio manufacturers at all.
Especially when it comes to amplifier products, we judge products by looking at the data sheets of the semiconductor devices used.
 
I just ordered 2 of these with 48V power supplies.. Did I make a mistake? Also, if my Elac Unifi UB2's are rated for max 150W, will this blow em up? I know this is likely a dumb question around here.. :(
 
Also, if my Elac Unifi UB2's are rated for max 150W, will this blow em up? I know this is likely a dumb question around here.. :(
The speakers will not go up in smoke the moment you plug them in.

However, if you keep increasing the volume and ignore your ears' and the speakers' warning that their near their limit, then you may well damage them.
 
The speakers will not go up in smoke the moment you plug them in.

However, if you keep increasing the volume and ignore your ears' and the speakers' warning that their near their limit, then you may well damage them.
Thanks. So some common sense. What is the advantage to having more power really? I curently have a Emotiva A2M powering em. I doubt the A07 Max mono blocks will sound better, but I am too curious, and I have other uses for them if not on this setup.
 
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