doepfer-a-176

Doepfer A-176 CV Source

Three manual CV sources, two with coarse + fine and dual outputs.

8 HP Eurorack module

The Doepfer A-176 is a manual control voltage source providing three independent voltages from one 8 HP module. Channels 1 and 2 each pair a coarse knob (~5 V span) with a fine knob (~0.1 V span) and feed two internally normalled parallel outputs, so a single CV can drive two destinations without an external multiple. Channel 3 has only the single coarse knob and one output. The voltage range of each channel is set by an internal jumper on the PCB to either 0 V to +5 V (unipolar) or -2.5 V to +2.5 V (bipolar around zero), letting you tailor each source to the destination it is patched into.

Features

  • Three independent manual CV sources in 8 HP
  • Coarse + fine knob pair on channels 1 and 2
  • Single coarse knob on channel 3
  • Two parallel (normalled) outputs on each of CV1 and CV2 — built-in mult
  • Single output on CV3
  • Fine knob covers approximately 0.1 V — true precision tuning
  • Coarse knob covers approximately 5 V — full source range
  • Per-channel jumper for unipolar (0 to +5 V) or bipolar (-2.5 V to +2.5 V) range
  • No internal CV inputs or modulation — pure manual source
  • DC-coupled outputs suitable for pitch, gain, cutoff, transpose
  • Compatible companion for A-110 standard VCO (adds the missing fine tune)
  • Doepfer A-100 system module — discontinued, replaced by A-180-6 / A-183-5

Controls & Jacks (10)

  • CV 1— Coarse adjustment for CV1. Sweeps the full range of the source (~5 V span). Routed in parallel to both CV1 outputs.
  • CV 1 Fine— Fine adjustment for CV1, layered on top of the coarse knob. Range is approximately 0.1 V — useful for precise tuning.
  • CV 1 Out A— First parallel output for CV source 1. Voltage is set by the CV 1 coarse and CV 1 Fine knobs combined.
  • CV 1 Out B— Second parallel output for CV source 1, internally connected to Out A. Lets a single CV feed two destinations without an external multiple.
  • CV 2— Coarse adjustment for CV2. Sweeps the full range of the source (~5 V span). Routed in parallel to both CV2 outputs.
  • CV 2 Fine— Fine adjustment for CV2, layered on top of the coarse knob. Range is approximately 0.1 V — useful for precise tuning.
  • CV 2 Out A— First parallel output for CV source 2. Voltage is set by the CV 2 coarse and CV 2 Fine knobs combined.
  • CV 2 Out B— Second parallel output for CV source 2, internally connected to Out A. Lets a single CV feed two destinations without an external multiple.
  • CV 3— Single adjustment for CV3. Sweeps the full range of the source (~5 V span). No fine control on this channel.
  • CV 3 Out— Output for CV source 3, set entirely by the CV 3 knob.

How-To Guides

  • Coarse + fine tune for an A-110 VCO
  • Manual VCA gain control
  • Three independent CVs at once
  • Slowly-tuned drone with fine pitch trim
  • Preset CV recall via A-150 switch

Explore the interactive A-176 CV Source panel on BleepDex — tap any control to learn what it does.

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