4MS Shifting Inverting Signal Mingler (SISM)

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  • Regular price $ 175.00

The SISM is a 4-channel voltage manipulator that can scale, invert, attenuate, shift (dc offset), mix, split, and slice your CV and audio signals.

Basic features

  • Four independent voltage processor channels, with four mix/mingle outputs
  • Each channel has:
    • Input jack
    • Scale knob (from inverted unity, to zero, to unity
    • Shift knob (adds/subtracts DC offset from -9V to +9V)
    • Output jack
    • Red and blue LEDs to indicate + or - voltage, as well as intensity
  • MIX jack outputs sum of all channels
  • MIX SWitch jack outputs sum of all channels with nothing plugged into their output jack
  • + SLICE jack outputs positive portion of mix (voltages greater than 0V)
  • - SLICE jack outputs negative portion of mix (voltages less than 0V)
  • Red and blue LEDs on all four mix/mingle jacks display what the signal is doing
  • 12HP, 22mm depth
  • +12V rail: 51mA max
  • -12V rail: 51mA max
Advanced features
  • Channels 1+2 and 3+4 are normaled together on the input, so plugging into Channel 1 (or 3) will split the signal: A jumper can disable this normalization
  • Scale knob has three ranges that are selectable with jumpers:
    • Bi-polar: -1x to +1x (inverting unity to unity) --default
    • Uni-polar: 0 to +1x (level fader)
    • Boost: 0 to 2x (twice the voltage gain)
  • Input Header (2x4) for connecting the output of a QCD or QPLFO to the SISM's inputs. Plugging into the input jacks overrides the signal on the header
  • Output Header (2x4) for connecting to the input of a VCA Matrix or other compatible module
  • PAD breakout header (2x4) for connecting to a breakout module that applies a pre-set pad (attenuation) to each channel.


 SISM User Manual v1.0 


Module size:
The SISM is 12HP and 0.86 inches (22mm) deep.
Power consumption: 

  • +12V rail: 51mA max
  • -12V rail: 51mA max