TPA3255 - all about DIY, Discussion, Design etc

[daniboun]

US $24.00 20%OFF | shui yuan Audio TPA3255 2.0 Digital Amplifier Board DC24-48v Strong High Power 300W + 300W Class D o Digital Amplifier Board
shui yuan Audio TPA3255 2.0 Digital Amplifier Board DC24 48v Strong High Power 300W + 300W Class D o Digital Amplifier Board|Amplifier| - AliExpress

I already got it... will be my next review with some updates. )

 

[Kalamin]

Daniboun,
You're just firing faster than could do your own shadow...😎

 

[daniboun]

Lol I will let you all know very soon )
Seems to be a very good alternative to the Aiyima A04

 

[saran008]

Lol I will let you all know very soon )
Seems to be a very good alternative to the Aiyima A04

Dani,

kindly take note about the ON & OFF POP sounds are there or not also.
Awaiting your review & findings! Thanks in advance

 

[daniboun]

kindly take note about the ON & OFF POP sounds are there or not also.
Awaiting your review & findings! Thanks in advance

Don't worry ) this is my first criteria )🙂

 

[drMordor]

FDA TPA325x

FDA TPA325x with active PFFB.

 

[FyrBridd]

FDA TPA325x with active PFFB.

Active PFFB? Very interesting, saw a forum post a while back on TI suggesting it but with no help on implementation. Had a fiddle around trying to simulate it but couldn't get it stable over full range, would be interested in how you implemented it.

 

[drMordor]

saw a forum post a while back on TI suggesting it but with no help on implementation

You have link?
I have successfully applied it in my GaN amplifier, I want to try to use it in 3255 too

 

[weissi]

Hey, anybody has any experience with the four channel board LINK ?
I want to order it and use it with a 48V power supply. I was looking at the pictures and saw that they used LM7812 (by the mute header) which has max 35V. I am a little confused how this should work.

With 48V that board gets HOT - too hot. I've settled with 36V. There's a switcher in front of the 7812, so no problem there.

 

[rdesales]

Good day…long time reader and first time porter.. ��

I bought a 3E Audio amp + SMPS300RS 48V (adjusted to 46V) as my setup.
I notice there is an light popping sound when turning on/off.

Scenario #1:
Turning on Aiyima T5 preaamp then turning on the 3E audio amp = light popping sound
Scenario #2:
Turnng on 3E audio amp, then turning on Aiyima T5 preamp = light popping sound.

Same case in when turning off.
Is this normal? Or Do I need to add a low voltage soft start switch with relay and will it illuminate the light popping sound?

Thanks a lot in advance…

 

[drMordor]

L6599

 

[IvanAltay]

L6599.
Совершенно не аудиофильское решение, поставить БП на общую плату с усилителем.
С другой стороны, вход TPA3255 БАЛАНСНЫЙ?

 

[drMordor]

of your choice, balanced or SE

 

[IvanAltay]

of your choice, balanced or SE

There is no choice. TPA3255 was created directly to the balanced input. Not balanced inclusion, there is an alternative scheme - defective circuitry. The chip itself makes noise at frequencies of about 1 MHz, naturally there will be interference on the input audio signal in the audio range.

 

[drMordor]

I talked about my amp

 

[IvanAltay]

OK

 

[AllenB]

Обратите внимание, это англоязычный форум.

L6599.
Совершенно не аудиофильское решение, поставить БП на общую плату с усилителем.
С другой стороны, вход TPA3255 БАЛАНСНЫЙ?

Translation:
Absolutely not an audiophile solution, to put a power supply unit on a common board with an amplifier.
On the other hand, is the TPA3255 input BALANCED?

Thank You.

 

[drMordor]

If you knew how many "smart" thoughts are written in PM))))

 

[IvanAltay]

Обратите внимание, это англоязычный форум.

Translation:
Absolutely not an audiophile solution, to put a power supply unit on a common board with an amplifier.
On the other hand, is the TPA3255 input BALANCED?

Thank You.

I apologize for switching to Russian. I saw a fellow countryman with an interesting topic.

 

[Draki]

:
Absolutely not an audiophile solution, to put a power supply unit on a common board with an amplifier.

And what exactly is an audiophile solution, versus a good engineering one and what are the differences? Any facts to back this up?


edit: this was not posted by Allen, only quoted, the original was in the post above.