Is there a dual TPA3116 amp with the input gain of 20dB?

[CowCat]

It seems that Breeze Audio dual TPA3116 100W * 2 has its input gain set to 32dB which is too high.

I want a cheap dual TPA3116 amp with the input gain of 20dB.

Does anyone know such a thing?

 

[FauxFrench]

It seems that Breeze Audio dual TPA3116 100W * 2 has its input gain set to 32dB which is too high.

I want a cheap dual TPA3116 amp with the input gain of 20dB.

Does anyone know such a thing?

Yes, the TI datasheet, section 6.5, tells that it can be set to 20dB gain:
http://www.ti.com/lit/ds/symlink/tpa3116d2.pdf
It is a matter of removing a two (SMD) resistors (one for each chip) on the "Breeze Audio" board.

 

[CowCat]

I'd like to avoid soldering and desoldering because I don't want to buy expensive soldering equipments for now.

 

[jean-paul]

Then cut them with a very sharp knife. However, I would desolder the resistors with a cheap but good soldering iron. Or have it done by a fellow DIYer that has a soldering iron. Looks better and is more or less a guarantee for reliable operation.

Any TPA3116/8 board can be changed to 20 dB amplification.

 

[CowCat]

It would be cheaper and easier to buy FX1002A, TPA3251 amp, or TPA3255 amp.
FX1002A comes with DIP switches for input gain.

 

[jean-paul]

You might need the soldering iron more often when doing audio stuff. In fact you can't do without.

 

[CowCat]

You might need the soldering iron more often when doing audio stuff. In fact you can't do without.

In the future, I will probably purchase a proper set of soldering equipments for keyboards and amplifiers.