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Synthrotek MST Expressor

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Synthrotek MST Expressor

The Synthrotek MST Expressor allows users to interface their favorite FX pedals with their Eurorack modular synthesizer system. The module is comprised of two processing units that allow for volume control via foot pedal, CV attenuation, the addition of positive or negative voltages, LFO adjustments, and pitch bending.

Additionally, the Expressor is capable of processing both audio and DC signals. 

MST Expressor Features

  • Processes audio and DC signals
  • Two discreet expression pedal input channels (1/4″ TRS jacks)
  • External signal (audio or CV) input per channel
  • Precise output adjustment: attenuator/scale control per channel
  • 3-position switch select of +5V, -5V or 0V (mute) per channel
  • External input bypasses the switch voltage (the switch voltage and external input are not active at the same time, i.e. the voltage will not offset your input signal.)
  • Red/green LED per channel (red = positive voltage, green = negative voltage)
  • Compatible with passive TRS 1/4″ expression pedals, such as the M-Audio EX-P
  • Current draw: 28mA on +12V; 28mA on -12V
  • Width: 8HP
  • Module depth: 24mm
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