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Doepfer A-111-2 High End VCO II

Item: SYN0005439-000
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Module A-111-2 is the successor of the obsolete High End VCO I A-111-1.Module A-111-2 is the successor of the obsolete High End...  All product info

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Doepfer A-111-2v High End VCO II Vintage Edition

Doepfer A-111-2v High End VCO II Vintage Edition Product Image
  • Manufacturer: Doepfer
  • TE / HP: 14.0
£ 238.00
£ 196.00
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A-111-2 High End VCO II

A-111-2 High End VCO II

Module A-111-2 is the successor of the obsolete High End VCO I A-111-1.

  • triangle core
  • min. 15 octaves pitch range (typ. 0.5Hz - 20kHz in VCO mode / 0.001Hz - 40Hz in LFO mode)
  • perfect 1V/octave tracking over min. 10 octaves (typ. 20Hz - 20kHz)
  • exponential frequency controls and inputs:
  • Tune (about +/- 1 octave range)
  • Fine (about +/- 1 semitone range)
  • Octave (range switch with 6 positions)
  • 1V/octave CV input
  • XFM input with attenuator
  • access to bus CV (via jumper, optional)
  • linear frequency controls and inputs:
  • LF (manual linear frequency control: fully CW = standard setting for usual VCO applications, fully CCW: close to 0Hz frequency)
  • works also as a kind of range control for the exponential section
  • LFM input with attenuator, DC coupled
  • Pulsewidth controls and inputs (for rectangle output):
  • PW (manual pulsewidth control from 0%/output = fixed at "low" state up to 100% / output fixed at "high" state)
  • PWM input with attenuator
  • Hard Sync input
  • Soft Sync input
  • Waveform outputs:
  • Sawtooth
  • Rectangle (controlled from pulsewidth section)
  • Triangle
  • Sine
  • dual color LED display (to display low frequencies below ~ 25 Hz)
  • Nearly "perfect" waveforms (no glitches)
  • high end triangle to sine converter with excellent sine waveshape (thank's to Tim Stinchcombe who recommended this circuit)
  • the micro precision VCO A-111-3 uses the same VCO core as the A-111-2, but has less inputs, outputs and controls
  • additional range switch (between Octave and Tune) to select VCO/LFO mode (see lower picture)
  • frequency relation between VCO mode and LFO mode about 1:500


  • Manufacturer: Doepfer
  • TE / HP: 14
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