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PATCHBAY INPUTS AND OUTPUTS
EXTERNAL AUDIO INPUT
EXTERNAL AUDIO INPUT
This is a unity gain input that allows other sound sources to be processed 
by Mother-32’s onboard Filter. Because this is a unity gain input designed to 
Eurorack level standards, an external audio source applied to this input should 
be 10V peak to peak. Signals lower than this (an MP3 player for instance) will 
need to be amplied prior to being input to the EXT. AUDIO jack for proper 
volume performance levels.
 
NOTE: When a cable is plugged into this jack, it overrides the normalization of 
noise to the clockwise position of Mother-32’s main mixer. This means that the 
MIX control becomes a level balancing control for the onboard oscillator and 
any sound source plugged into the EXT. AUDIO jack.
MIX CONTROL VOLTAGE INPUT
MIX CV INPUT
This input is summed with the MIX panel control. With the MIX control at center 
position, a -5V to +5V CV applied to this input will crossfade between the 
selected VCO waveform and the EXT. AUDIO input (normalled to White Noise).
VOLTAGE CONTROLLED AMPLIFIER
VCA CV INPUT
This input allows a control voltage to be applied to Mother-32’s output VCA. 
Patching an LFO to this input will allow you to create Tremolo effects (0 to +8V 
in EG mode and +/-5V in ON mode, summed with signals from ON/EG switch). 
 
VCA OUPUT
This is the output from the VCA after the Volume attenuator (+/-5V, typical).