Aiyima’s TPA3255 PFFB based amplifier, coming soon

[AIYIMA:GUO]

I guess you can not expect the same performance for the AIYIMA A70. It is much cheaper than any Amp with a 3E module. Also, I do not think that the main focus of this Amp development is to achieve a SINAD beyond 100db but to reduce load dependency.

We are also considering designing a mono power amplifier, and it is expected that SINAD will exceed 100dB.

 

[Abstracted]

We are also considering designing a mono power amplifier, and it is expected that SINAD will exceed 100dB.

Can we bridge the A70?

 

[AIYIMA:GUO]

Can we bridge the A70?

Currently, the A70 does not have a bridge circuit designed

 

[enio nery]

Currently, the A70 does not have a bridge circuit designed

any plans on making a pure power amp version of this?

 

[AIYIMA:GUO]

any plans on making a pure power amp version of this?

There is such a plan

 

[enio nery]

There is such a plan

Great!!! That's exactly what im looking for to implement for my longstanding project of 3 way bookshelf speakers with active crossover. i have been holding out for so long for something like that to come from you.

 

[Matias]

Added the A70 48V 10A to the table. It is one of the best values > 150W.

Amplifier SINAD list ASR + 3rd parties

List Name,THD+N (5W, 4 ohms),SINAD (dB) (5W, 4 ohms),Power (W) (1% THD+N, 4 ohms),Price (USD),Source Topping LA90 (stereo, bypass, low gain),0.00009%,121,90,800,<a href="https://www.l7audiolab.com/f/topping-la90/">L7 Audio Lab</a>,Suggestions, corrections and more info here: Topping LA90 Discre...

docs.google.com

 

[Jeromeof]

Added the A70 48V 10A to the table. It is one of the best values > 150W.

Amplifier SINAD list ASR + 3rd parties

List Name,THD+N (5W, 4 ohms),SINAD (dB) (5W, 4 ohms),Power (W) (1% THD+N, 4 ohms),Price (USD),Source Topping LA90 (stereo, bypass, low gain),0.00009%,121,90,800,<a href="https://www.l7audiolab.com/f/topping-la90/">L7 Audio Lab</a>,Suggestions, corrections and more info here: Topping LA90 Discre...

docs.google.com

Yes looks like it has that nice balance between price, power and performance

 

[restorer-john]

Added the A70 48V 10A to the table. It is one of the best values > 150W.

Amplifier SINAD list ASR + 3rd parties

List Name,THD+N (5W, 4 ohms),SINAD (dB) (5W, 4 ohms),Power (W) (1% THD+N, 4 ohms),Price (USD),Source Topping LA90 (stereo, bypass, low gain),0.00009%,121,90,800,<a href="https://www.l7audiolab.com/f/topping-la90/">L7 Audio Lab</a>,Suggestions, corrections and more info here: Topping LA90 Discre...

docs.google.com

 

[lewdish]

We are also considering designing a mono power amplifier, and it is expected that SINAD will exceed 100dB.

I'm hoping theres modular kits or builds for compact multi channel options.

 

[Guddu]

ASR review is available now, thanks again @amirm
Thread 'AIYIMA A70 Stereo Amplifier Review'
https://audiosciencereview.com/forum/index.php?threads/aiyima-a70-stereo-amplifier-review.52830/

Congrats @AIYIMA @AIYIMA:GUO
This should satisfy many.

 

[AIYIMA]

ASR review is available now, thanks again @amirm
Thread 'AIYIMA A70 Stereo Amplifier Review'
https://audiosciencereview.com/forum/index.php?threads/aiyima-a70-stereo-amplifier-review.52830/

Congrats @AIYIMA @AIYIMA:GUO
This should satisfy many.

Thank you, we will design more and better products.

 

[MCH]

Thank you, we will design more and better products.

Thanks @AIYIMA
Great results, congratulations. Please note Amir comments on sub out, that were also shared with you here.

 

[daniboun]

@AIYIMA:GUO. / @AIYIMA
- Could you please share for all members pictures of the 48/5A Gan PSUs. with model / Serial numbers )
- Why did you ask Amir just to test the 48V/10A and not the 48V/5A ? Please answer honestly !

 

[MCH]

@AIYIMA:GUO. / @AIYIMA
- Could you please share for all members pictures of the 48V/10A Gan and 48/5A Gan PSUs. with model / Serial numbers )
- Why did you ask Amir just to test the 48V/10A and not the 48V/5A ? Please answer honestly !

This is one of the strangest requests that I have seen in this forum.
Do you think there is something wrong with the power supplies? If yes, what and why?
What do you plan to do with this information? Most specifically with the serial numbers?
All honest questions, I am very curious.

 

[Sokel]

@AIYIMA:GUO. / @AIYIMA
- Could you please share for all members pictures of the 48V/10A Gan and 48/5A Gan PSUs. with model / Serial numbers )
- Why did you ask Amir just to test the 48V/10A and not the 48V/5A ? Please answer honestly !

What's the mystery?
It's right there in the review:



(click on the pic to maximize)

 

[daniboun]

This is one of the strangest requests that I have seen in this forum.
Do you think there is something wrong with the power supplies? If yes, what and why?
What do you plan to do with this information? Most specifically with the serial numbers?
All honest questions, I am very curious.

This is one of the strangest requests that I have seen in this forum.
Do you think there is something wrong with the power supplies? If yes, what and why?
What do you plan to do with this information? Most specifically with the serial numbers?
All honest questions, I am very curious.

I will come back to you when I have Aiyima's response and you will understand where I am going with this. While waiting for this response from Aiyima annoys me a lot and it is even misleading

Aiyima’s TPA3255 PFFB based amplifier, coming soon

Nice, looking forward to see the review ) AIYIMA A70 PFFB pre-measurements (36V / 48V PSU) 4R Load 3E Audio 260-2-29A PFFB (48V PSU) 4R Load Do not forget to look at the Y-axis. Values are different (even though not much).

audiosciencereview.com

 

[daniboun]

What's the mystery?
It's right there in the review:

View attachment 354997

(click on the pic to maximize)

I saw it . Asking for the 48V/5A and then I will be able to answer

 

[MCH]

. While waiting for this response from Aiyima annoys me a lot and it is even misleading

Not doubting your good intentions, but it is Friday 21:30 in China.... I think it would be fair to at least explain your motivations.

 

[phoenixdogfan]

Thanks for the answer.

We should expect this according your datasheets :

View attachment 350976

I don't understand, given the numbers a 480 watt (48v, 10 amp) are projected to yield on Aiyima's own table, why Amir's tests show a peak output at 8 ohms of only 77 WPC.