TPA3251d2

[mamocel]

ok i'unterstand!
For a hi -end dac dac ,it's normal.1656 is for symetrique signal....
but it's impossible to have a symetrique signal whith a single op amp...
and 1656 for symetrique...opa16111 asymetrique .
have a nice day!

Hi Danny.

You can't replace the two dual Op-Amps with a Single Op-Amp. The pin out is different for a start and I am quite sure that both the the Op Amps are used for each channel !

James

YES ...

 

[mamocel]

2 single OPA1611 > for balanced outpout
2 dual OPA1656 > for unbalanced output

That s all )

it' the reverse

 

[daniboun]

It is not the reverse )
I confirm what I said for my double AK4497 DAC :

2 single OPA1611 > for balanced outpout
2 dual OPA1656 > for unbalanced output

 

[daniboun]

Hi Danny.

You can't replace the two dual Op-Amps with a Single Op-Amp. The pin out is different for a start and I am quite sure that both the the Op Amps are used for each channel !

James

You're right.
I gave a try with my single J-FET Muse 03 indeed, I got no sound when switching ON )

 

[mamocel]

strange! i'go to open my double ak 4497 to see...and understand.
have a nice day!

 

[drMordor]

My new idol - OPA1656!

 

[daniboun]

My new idol - OPA1656!

I told you it was a great OP Amps Bro )
I am using it from the beginning !

 

[mamocel]

+1

 

[Djmorozoff]

Received Aiyima A04 green board. Replaced thermal paste with Arctic MX-4. Tilear HD325x Rev: 2.1 is written under the radiator. Replaced 10mF capacitors with Elna rbd 10mFx25V. At the exit of Nichicon FW. Then I will put the original Epcos 0.68 mF MKP. The op amps are not like the original. Temporarily installed from another device. I will change to OPA2132PA.

 

[Audientid14]

How does it sound ?

 

[daniboun]

Received Aiyima A04 green board. Replaced thermal paste with Arctic MX-4. Tilear HD325x Rev: 2.1 is written under the radiator. Replaced 10mF capacitors with Elna rbd 10mFx25V. At the exit of Nichicon FW. Then I will put the original Epcos 0.68 mF MKP. The op amps are not like the original. Temporarily installed from another device. I will change to OPA2132PA.

Well done, looking forward to know how it sounds )
Updating the inductors should be a good choice as well...

 

[Djmorozoff]

How does it sound ?

My main amplifier class EA A. Laikov V6. I noticed that the cymbals became a little louder. I liked Aiyima A04 more. Otherwise, I did not notice the difference. Perhaps OPA2132PA will be better.

Updating the inductors should be a good choice as well...

Thank you! I plan a little later.

 

[nige8388]

appologizies if this isn't the appropriate thread, but I've been looking for a acceptable psu for my tpa3241d2 amp.

Looking for a 36v 12-30 amp PSU without a fan, preferably SMPS. Looking for making a portable speaker.

 

[enzo3875]

appologizies if this isn't the appropriate thread, but I've been looking for a acceptable psu for my tpa3241d2 amp.

Looking for a 36v 12-30 amp PSU without a fan, preferably SMPS. Looking for making a portable speaker.

You can try the Mean Well LRS-150-24 https://www.audiosciencereview.com/...ni-liquid-music-system-with-aiyima-a04.31435/. It's small, quiet, affordable, and certainly capable of taking the TPA3251 to the limit of its power on an amp like the A04.