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Thanks! I couldn't ask for a better explanation. This is what I love about electronics, no matter how many years you work at it, there's always something new to learn.
Thanks jhsa and thanks for the tip. A mosfet will provide the best low voltage drop solution. In this case, the selected mosfet should be able to handle current required by amplifier module at maximum volume as well as the reverse 12V, if accidentally applied.
Hi. Thanks.The two caps are not for the speaker output. They are for the audio input. They are connected to the PCB via the volume control. If you zoom in to the PCB you will see that they go to the connections R_IN and L_IN.
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