4 input Portable Mixer

Posted on Apr 3, 2012

The target of this project was the design of a small portable mixer supplied by a 9V PP3 battery, keeping high quality performance. The mixer is formed assembling three main modules that can be varied in number and/or disposition to suit everyone needs.

4 input Portable Mixer
Click here to download the full size of the above Circuit.

The three main modules are: Input Amplifier Module: a low noise circuit equipped with a variable voltage-gain (10 - 100) pre-set, primarily intended as high quality microphone input, also suitable for low-level line input. Tone Control Module: a thr

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