This is a DC coupled, four channel attenuverting mixer. It is expandable to eight channels. 

A.How it works

This module is a four knob DC mixer. Each knob can both attenuate and invert the signal for it's corresponding input, thus “attenuverting.” It can be used with both audio and CV signals. There is also an additional wirepad for the mix bus, allowing for two PCBs to be used in conjunction to create an 8 channel mixer.

B.Controls/Inputs/Outputs

1.Attenuverting Knobs – Each of these controls how much of a signal is present in the mixed output and whether it is the original or inverted version of the signal. When the knob is at 12'O Clock there will be no signal present, as you turn it clockwise, the original signal will be added and when turned counter-clockwise the inverted signal will be added to the mix.

2.Input Jacks – Used for inputting the signals to the mixer.

3.Output jack – The output of the mixer.