Passive Audio Mixer Circuit Diagram. Making an audio mixer. The audio mixing circuit alone is a very simple summing amplifier.
So now you have. There are two dual logarithmic potentiometers in the circuit to adjust the input signal levels and some resistors to do the actual mixing. This audio mixer circuit uses two stage amplifiers with a microphone to capture and amplify the bass beats played on an external device so that it should have enough loudness when mixing with other sounds.
4 or 8 stereo pairs are summed via l and r buses which are then sent to external microphone preamps for makeup gain.
The audio mixing circuit alone is a very simple summing amplifier. The only active component in. Basically all circuits are as follows. Input output for an audio mixer you need a resistor on each input.