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Matrix Mixer

4 x 4 Matrix mixer

Matrix Mixer
This circuit has several inputs available that can be mixed to different outputs with adjustable levels. At each point of the matrix a potentiometer is available that defines the level for the matrix junction in question.

The circuit can be used for CV or audio applications. The number of inputs and outputs can be increased to the desired value of columns and rows. For each of the outputs the two OpAmp circuit with the corresponding output socket is required. For each input another socket and the corresponding quantity of potentiometers and resistors is required.

Typical values for the parts used:
All operational amplifiers: NE5532
All potentiometers: 47k linear (CV) or log (audio)
All resistors: 100k

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