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The board in action

A project log for Amplifier input select, pre-amp and tone control

A fully digitally I2C-controlled input selector, pre-amplifier and tone controller based around the TDA7439.

tijl-schepensTijl Schepens 05/20/2021 at 18:190 Comments

I've integrated the board into my Raspberry Pi amplifier and adjusted the code to work with the tone control board.


As you can see in the video it is working nicely! Bass treble and volume work properly and respond very quickly. I did not implement a balance control as I don't see any value in that. I've never used that in the past.

The app is still a bit hacked together as the sliders are not working properly :-/ But with some extra work it can probably be fixed rather easily.

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