Which TPA3255 amp do you recommend?

[ModDIY]

I saw this on aliExpress, a TPA3255 with feedback from 3eAudio.

US $84.99 | TPA3255 TPA3251 High-end HiFi Amplifier With Feedback Design

https://a.aliexpress.com/_mPjft1G

 

[spalmgre]

I saw this on aliExpress, a TPA3255 with feedback from 3eAudio.

View attachment 270246

Notice that there are 4 different board configurations at AliExpress and all at different prices. The one chosen here in the picture is the one to get. These was not awailable 2 weeks ago but now there is 137 boards
I'm quite convinced that this is also the same board that audiophonics.fr is waiting to get a restock on.

 

[somebodyelse]

Manufacturer's product page https://www.3e-audio.com/amplifier-kits/tpa32xx-with-pffb/ has a link to the datasheet with includes (among other things) some AP plots of frequency response into different loads, and power vs. distortion, plus an explanation of what variations the 6 different part numbers available represent.

 

[john11]

A good board, but you could buy a fully built aiyima A07 for less.

 

[somebodyelse]

A good board, but you could buy a fully built aiyima A07 for less.

You could, but that doesn't have the PFFB (more distortion, load-sensitive frequency response), quality coils (distortion again), balanced inputs (freedom from ground loop issues) or the heatsinking options (sustained power output). The 3E is more capable than the A07 but at a price. Whether it's worth it depends on what you need.

A better comparison would be hypex given the performance and likely cost once you include a PSU.

 

[Deleted member 58865]

AIYIMA A07 is good enough for me.

 

[geek101]

I saw this on aliExpress, a TPA3255 with feedback from 3eAudio.

US $84.99 | TPA3255 TPA3251 High-end HiFi Amplifier With Feedback Design

https://a.aliexpress.com/_mPjft1G

View attachment 270246

Very interesting, is it easy to get a case and assemble this?.

 

[john11]

It comes down to how much money you have to spend, if you have the cash then go for the proven and reliable hypex, they have got a solid reputation and a lot of good feedback. That would be my choice, if i had the cash, which i don't
My aiyima A07 has a ton of solid feedback, and with upgraded op-amps caps inductors, and 10 amp psu has defeated all class-d amps thrown at it.
As for 3ae manufacturer's specs - let's not even go there. It's better going with a proven product rather than taking a chance and getting burnt

 

[spalmgre]

There are two more question.
1) How do you start these amps if you go active and have several to start.
2) Moust of the 3255 amps are single ended in. But the chip is balanced in. How do you convert or bypass the single ended prestage to get balanced in. The 3E bord explains this but how to do it with Aiyima.

 

[ModDIY]

Very interesting, is it easy to get a case and assemble this?.

Yes it is very easy. I have made several. If you want help, go to the diyAudio forum in the class D amp section.

 

[mrmeng430]

This reviewer likes the AOSHIDA A7 amp:

REVIEW/MEASUREMENTS: AOSHIDA A7 Class D TI TPA3255 amplifier. Good sound. Good power. Economical.

A blog for audiophiles about more objective topics. Measurements of audio gear. Reasonable, realistic, no snakeoil assessment of sound, and equipment.

archimago.blogspot.com

 

[somebodyelse]

This reviewer likes the AOSHIDA A7 amp:

REVIEW/MEASUREMENTS: AOSHIDA A7 Class D TI TPA3255 amplifier. Good sound. Good power. Economical.

A blog for audiophiles about more objective topics. Measurements of audio gear. Reasonable, realistic, no snakeoil assessment of sound, and equipment.

archimago.blogspot.com

Similar performance to the Aiyima A07 at almost double the price? I guess if you really like the meter or the separate volume controls...

 

[mrmeng430]

Similar performance to the Aiyima A07 at almost double the price? I guess if you really like the meter or the separate volume controls...

The Aoshida A7 has XLR inputs, might be a preference to some, I guess.

 

[grogi.giant]

The Aoshida A7 has XLR inputs, might be a preference to some, I guess.

But that balance imbalance...

 

[somebodyelse]

The Aoshida A7 has XLR inputs, might be a preference to some, I guess.

Myself included. Pity the measurements didn't investigate them more - CMRR, whether there's a 'Pin 1 Problem' etc. I'd probably look at sticking InGenius modules in the A07 though.

 

[Peter-ht]

Nogen der har prøvet denne forstærker

NEW TPA3255 PBTL 600W 315W + 315W Stereo Class D High Power HiFi Amplifier Board | eBay

This technology can enable the device to maintain ultra-low distortion in the entire audio frequency band, while displaying sound quality. The device works in AD mode. Power amplifier IC: TPA3255 chip.

www.ebay.de

 

[Fster]

Hi all! What can you say about this amplifier?

https://aliexpress.ru/item/10050027...81196&sku_id=12000027462098630#reviews_anchor

 

[Larudakote]

Very interesting with 4 inputs, including BT and USB to connect HTPC. Input OP amp on DIP 8.
The power supply can be found separately.
I just think the cooling radiator is too small to produce aimed power.
Is it yours ? (here is the french link)

 

[TonyJZX]

ironically this place has a huge thread on it:

Breeze TPA3255 XLR Balanced Amplifier TearDown : DIP8 Op Amps.

Hi amigos ) As promised, I am sharing some spec and pictures about the new Breeze Audio TPA3255 amplifier. This is the only full balanced finished amp that I found for less than $200 ) The amp comes in an black aluminum case of modest size but seems robust however. In the front plate you will...

www.audiosciencereview.com

 

[TonyJZX]

btw.

here's the flyer

Account Suspended

i mean it says 150w at 8ohm and it implies 0.003% thd

i doubt it though