Doepfer A-190-5 Polyphonic USB/MIDI-CV
Four-voice polyphonic MIDI to CV gateway for modular
14 HP Eurorack module
The A-190-5 is a four-voice polyphonic MIDI/USB to CV/Gate interface that converts incoming MIDI data into up to 16 simultaneous control voltage outputs across four voices. Each voice provides a 1V/octave pitch CV, a gate signal, a velocity CV, and a freely assignable CV3 output, making it a powerful bridge between digital MIDI controllers or DAWs and analog modular synthesizers.
Features
- Four-voice MIDI/USB to CV/Gate conversion
- USB Class Compliant — no custom driver required
- MIDI DIN input and MIDI THRU output
- 1V/octave CV Note output per voice for VCO pitch control
- Gate output per voice for envelope generator triggering
- CV2 output per voice for MIDI velocity
- CV3 output per voice assignable to any MIDI controller number (0-127), monophonic aftertouch
- CV3 voltage range 0 to approximately +10 volts
- Six operating modes covering monophonic, unison, and polyphonic voice allocation
- Retrigger parameter with millisecond-resolution value (0-50ms) for legato/retrigger control
- Per-voice or global MIDI channel selection (channels 1-16)
- Per-voice or global reference note (Refnote) setting for 0V CV calibration
Controls & Jacks (26)
- Left/Minus — Navigates backwards through parameters, decreases parameter values with acceleration on hold
- Right/Plus — Navigates forwards through parameters, increases parameter values with acceleration on hold
- Escape — USB input for MIDI data, USB Class Compliant, no custom driver required
- Return — Gate signal output for Voice 1, controls envelope generators
- Shift 1 — Assignable controller/monophonic aftertouch output for Voice 2
- Shift 2 — Pitch control voltage output for Voice 1, 1V/octave standard for VCO control
- Voice 1 CV Note — Velocity control voltage output for Voice 1, can control VCF cutoff or VCA level
- Voice 1 CV2 — DIN socket input for MIDI data
- Voice 1 CV3 — Pitch control voltage output for Voice 3, 1V/octave standard for VCO control
- Voice 1 Gate — Loop-through output for most incoming MIDI data events
- Voice 2 CV Note — Velocity control voltage output for Voice 3, can control VCF cutoff or VCA level
- Voice 2 CV2 — Assignable controller/monophonic aftertouch output for Voice 3
- Voice 2 CV3 — Gate signal output for Voice 4, controls envelope generators
- Voice 2 Gate — Gate signal output for Voice 2, controls envelope generators
- Voice 3 CV Note — Pitch control voltage output for Voice 2, 1V/octave standard for VCO control
- Voice 3 CV2 — Velocity control voltage output for Voice 2, can control VCF cutoff or VCA level
- Voice 3 CV3 — Gate signal output for Voice 3, controls envelope generators
- Voice 3 Gate — Assignable controller/monophonic aftertouch output for Voice 1
- Voice 4 CV Note — Pitch control voltage output for Voice 4, 1V/octave standard for VCO control
- Voice 4 CV2 — Velocity control voltage output for Voice 4, can control VCF cutoff or VCA level
- USB — USB input for MIDI data, USB Class Compliant, no custom driver required
- MIDI IN — Intended for future extensions
- LCD Display — 2x16 character LCD display showing modes, functions, and parameter values
- MIDI THRU — Loop-through output for most incoming MIDI data events
- Voice 4 Gate — Gate signal output for Voice 4, controls envelope generators
- Voice 4 CV3 — Assignable controller/monophonic aftertouch output for Voice 4
How-To Guides
- Save All Parameters to Memory
- Cancel Save Without Overwriting
- Four-Voice Polyphonic Synth from DAW
- Velocity-Controlled VCA Dynamics
- Aftertouch Filter Sweep
- Four Independent Mono Synth Voices
- Unison Fat Mono Bass
- Mod Wheel Filter Modulation via CV3
- Setting Legato vs Retrigger Behavior
- Dual MIDI Channel Two-Voice Poly Layering
- Calibrate Reference Note for VCO Tuning
Explore the interactive A-190-5 Polyphonic USB/MIDI-CV panel on BleepDex — tap any control to learn what it does.
