TPA3255 - all about DIY, Discussion, Design etc

[drMordor]

This is super))))
I hope not less numbers

 

[daniboun]

Hi amigos,

Seems that the new version of the finished 3E Audio TPA3255 is now provided with DIP8 socket to update OP amps, good new )

Amplifier will be sold with 2 PSU options :

44V for 8ohn
37V for 4ohm

 

[zek]

Link please...

 

[daniboun]

Link please...

No link, will be available soon )

 

[turion64]

Hi amigos,

Seems that the new version of the finished 3E Audio TPA3255 is now provided with DIP8 socket to update OP amps, good new )

Amplifier will be sold with 2 PSU options :

44V for 8ohn
37V for 4ohm

Will it come finished in the chassis? If so, nice little package!

 

[daniboun]

Yes, this is a finished amp as said )

 

[bucks bunny]

Who designed the on-board power supplies?

 

[drMordor]

Datashit?

 

[daniboun]

Guys )
Open your eyes... look at the Heatsink, this is the 3E Audio design )
The board uses 3E Audio SMPS PSU + same spec as their TPA3255 Mono / stéréo boards.

http://www.3e-audio.com/wp-content/uploads/2020/11/SY-DAPx002-Amplifier-User-Guide-Rev1.0.pdf

PS : but not sure this is the final design.... I spoke with 3E Audio last week and the board would came with OPA 5532

 

[mamocel]

I have the tpa32550 3e audio ,sounds is very intersting whith opa 1602 dsp inside.
the workmanship is remarkable!

 

[daniboun]

Piratelogic is also entering in the dancefloor with the TPA3255 )

 

[turion64]

Yes, this is a finished amp as said )

Just an upgrade to the one with DSP built in he now sells?

Pete

 

[daniboun]

Seems to be yes )

 

[saran008]

No link, will be available soon )

Seems already on Sale!

TPA3255 Bluetooth 5.0 with DSP Processing Integrated Power Supply All in One HiFi Amplifier| | - AliExpress

 

[daniboun]

Right, just checked in aliexpress ) let s test now

 

[bucks bunny]

I see a 2 prong power chord entering a metal case. The worst case scenario in terms of electrical safety. Like so many of these chinese designs, no CE-declaration or CE-marking and electrical safety is something for sissies. Building an audio amp takes more than optimizing audio aspects.

 

[Toku]

There are two types of 3e audio SY-DAP2002 available: SY-DAP2002 -4ohm / 37V and SY-DAP2002 -8ohm / 44V.
Is the reason for this divided into two types because it is necessary to lower the voltage due to insufficient power supply capacity with a 4 ohm load?

 

[jimk04]

I believe the lower input voltage for the 4ohm version will be to lower the heat generated by the amplifier chip with low impedance speakers and high psu voltage.
However I run my 3e 2channel into nominal 4ohm speakers and run at 51v. No problems so far. Been powered up 24/7 for months

 

[TNT]

Datashit?

You mean Data sheet? ;-)

//

 

[ilan5555]

Hi amigos,

Seems that the new version of the finished 3E Audio TPA3255 is now provided with DIP8 socket to update OP amps, good new )

Amplifier will be sold with 2 PSU options :

44V for 8ohn
37V for 4ohm

How is the sound?
Is it the same as the board?
TPA3255 2x260W 2Ch Class D Audio Amplifier|Amplifier| - AliExpress