Stereo 4-In 4-Out Mixer
A Eurorack size audio mixer. Mix up to 4 audio input channels, the output is duplicated 4 ways with level control on each output.
Mixers will usually attenuate the inputs so the combined output doesn't overload and distort. So for a 4 input mixer each input is cut to 25% level. This mixer has a gain control that allows compensation for the attenuation when less than 4 inputs are being used. The gain goes up to 4X, so a single input can make it through the mixer with no attenuation.
Using a 5V supply this mixer works with up to 2Vpp audio signals (consumer/pro line audio levels).
|Gerbers (mother board)||N901A.zip|
|Gerbers (daughter boards)||N901B.zip|
|3D Print File||4x4_mixer_panel.stl|