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Review on HiLetgo TDA7297 Version Amplifier Dual Channel by Darrin Parasson

Revainrating 5 out of 5

Works well, good value for money.

My ESP32 based project needed an audio amplifier to play voice files. This amp did a great job. The amplifier module does not include a case, so I 3D printed a simple bracket for it (see photo). The digitized audio files were monophonic. Thus, the left and the right audio input of the amplifier were connected to each other. Each of the amplifier's two outputs drove a separate speaker; I used a set of 4"""car"" speakers with plastic grilles. The overall sound quality and volume is better than I expected. So this was a good buy for me.

Pros
  • Output Impedance: 4-8 ohms
Cons
  • Not bad, but...