Moog — Labyrinth
Moog Labyrinth User’s Manual PDF
Moog Labyrinth Eurorack Module Cheat Sheet
OVERVIEW
Moog Labyrinth is a semi-modular, parallel generative analog synthesizer with dual sequencers, two parallel audio paths (VC wavefolder & state-variable filter), individual VCAs, dual decay envelopes, extensive patching, and advanced generative sequencing features.
Quickstart
- Power Up: Plug in the +12 VDC power supply (draws ~290 mA in Eurorack), or use included wall adapter.
- Audio Out: Patch the rear AUDIO OUT (1/4” TS) to a mixer or active speaker. Use the VOLUME knob to adjust.
- Warm Up: Allow a few minutes for analog tuning stability.
- Initialize: Hold
BUFFER + RESET for 1 sec to clear sequencers.
- Sequencer: Enable steps with
BIT FLIP. Use RUN/STOP to start and hear sound. Adjust pattern using LENGTH, BIT SHIFT, CV RANGE, and CORRUPT knobs.
- Sound Shaping: Wavefolder (VCW) and filter (VCF) paths are mixed/crossfaded via BLEND.
Set ORDER:
- PARALLEL: VCW and VCF run side by side
- VCW>VCF: VCW feeds into VCF
- VCF>VCW: VCF feeds into VCW
Controls Summary
Oscillators
| Knob/Button |
Function |
| VCO FREQUENCY |
Main sine VCO pitch (~20 Hz - ~5 kHz) |
| VCO EG1 AMT |
Bipolar env (EG1) to VCO pitch |
| VCO SEQ1 AMT |
SEQ1 amount (set to QTZ for quantized) |
| MOD VCO FREQUENCY |
Mod/triangle VCO pitch (LFO–~1.3kHz, below audio range = LFO/Drums) |
| MOD VCO EG1 AMT |
Bipolar env (EG1) to MOD VCO |
| MOD VCO SEQ2 AMT |
SEQ2 amount (set to QTZ for quantized) |
| MOD VCO FM AMT |
Amount of FM from MOD VCO to VCO (thru-zero for proper tuning) |
Mixer Section
| Knob |
Function |
| VCO LVL |
Sine VCO level (+ overdrives past 12:00) |
| RING MOD LVL |
Ring mod level (adds metallic tones) |
| MOD VCO LVL |
MOD VCO level |
| NOISE LVL |
Noise level |
| NOISE TONE |
Noise HF/LF tilt |
Wavefolder (VCW) Section
| Knob |
Function |
| VCW FOLD |
Depth of wavefolding (clean left, max right) |
| VCW EG1/CV AMT |
Bipolar env or CV to VCW FOLD (patch breaks EG1 norm) |
| VCW SEQ1 AMT |
SEQ1 amount to VCW FOLD |
| VCW BIAS |
DC bias (for asymm. folding) |
Filter (VCF) Section
| Knob |
Function |
| VCF CUTOFF |
Filter cutoff frequency (~20 Hz - 20 kHz) |
| VCF EG1/CV AMT |
Bipolar env or CV to cutoff (patch breaks) |
| VCF SEQ2 AMT |
SEQ2 amount to VCF cutoff |
| RESONANCE |
Adds peak at cutoff (no bass loss) |
| FILTER MODE |
LP↔BP crossfade left→right |
Blending/VCAs
| Control |
Function |
| BLEND |
Crossfades VCW ↔ VCF paths |
| VOLUME |
Final output and VCA out patch bay level |
| ORDER |
Routing: PARALLEL/VCW-VCF/VCF-VCW |
| U MIX 1 LVL |
Level for utility submixer 1 (normalled to ringmod, patch breaks) |
Envelopes
| Knob/Button |
Function |
| EG1 DECAY |
Percussive envelope 1 decay (mod, VCO, VCF, VCW) |
| EG2 DECAY |
Envelope 2 decay (controls both built-in VCAs by default) |
| EG TRIG MIX |
Trig blend between SEQ1 and SEQ2 triggers to envs |
| TRIGGER (btn) |
Manually triggers both EG1 and EG2 |
Sequencer (per SEQ1, SEQ2)
| Knob/Button |
Function |
| RUN/STOP |
Start/stop sequencer |
| BUFFER |
Save buffer state (hold 1s for save, short press to reload) |
| CHAIN SEQ |
Chain SEQ1 & SEQ2 for 16-step sequence |
| ADVANCE |
Move play/write heads ahead one bit |
| LENGTH |
Sequence step length (1–8, cycles) |
| BIT SHIFT |
Rotates active bits |
| BIT FLIP |
Flips current write head's bit on/off (generates random voltage) |
| CORRUPT |
Probabilistic mutation of step voltages/bits |
| CV RANGE |
Attenuates voltage span of sequence (-5V...+5V in, scales down) |
| RESET |
Resets play head to step 1 |
| Various combos |
Quantizer, shift offsets, special ops (see Button Combos ref) |
Sequencer Button Combos:
See p.37 for list—hold/combine BIT SHIFT, ADVANCE, etc. to offset, reset, select quantizer, etc.
Patch Bay Reference
32 x 3.5mm Jacks (20 IN, 12 OUT), all Eurorack compatible
Inputs (White text, Black Body)
| Jack |
Function |
Voltage Range |
| VCO 1V/OCT |
VCO pitch control (sum with panel) |
-5V to +5V |
| M VCO 1V/OCT |
MOD VCO pitch control (sum) |
-5V to +5V |
| M VCO SYNC |
Resets triangle MOD VCO |
0V to +5V |
| BLEND |
Crossfader VC for BLEND |
-5V to +5V |
| VCW IN |
Audio in to wavefolder |
-5V to +5V |
| FOLD |
CV in for fold depth |
-5V to +5V |
| VCW VCA CV |
VCA level for VCW side |
0V to +8V |
| VCF IN |
Audio in to VCF |
-5V to +5V |
| CUTOFF |
VCF cutoff CV (sum) |
-5V to +5V |
| VCF VCA CV |
VCA level for VCF side |
0V to +8V |
| U MIX 1 (RING) |
Utility mixer 1 input (default: ring mod) |
-5V to +5V |
| U MIX 2 |
Utility mixer 2 input |
-5V to +5V |
| EG2 TRIG |
Triggers EG2 envelope (rising edge) |
0V to +10V |
| CLOCK 1 |
Ext clock SEQ1 (or both if 2 is unpatched) |
0V to +10V |
| BIT FLIP 1 |
Digital in, flips current write step for SEQ1 |
0V to +10V |
| CLOCK 2 |
Ext clock SEQ2 (norm: from 1) |
0V to +10V |
| BIT FLIP 2 |
Digital in, flips current write step for SEQ2 |
0V to +10V |
| MIDI |
3.5mm MIDI In (Clock, Note On, Start/Stop/Continue) |
MIDI signals |
| TRIGGER |
Triggers both EGs (rising edge), unless EG2 patched |
0V to +10V |
| RESET |
Resets sequencer play head to step 1 |
0V to +10V |
Outputs (Black text, White Body)
| Jack |
Function |
Voltage Range |
| VCA |
Mono main output (Eurorack level) |
-5V to +5V (10Vpp) |
| M VCO |
MOD VCO triangle out |
-5V to +5V |
| NOISE |
Noise generator out |
-5V to +5V |
| MIXER |
Mixer output (raw: VCO, MOD VCO, etc.) |
-5V to +5V |
| EG1 |
Envelope 1 out |
0V to +8V |
| EG2 |
Envelope 2 out |
0V to +8V |
| U MIX 1+2 |
Utility mixer summed output |
-5V to +5V |
| SEQ1 CV |
Sequencer 1 CV (attenuated, quantized) |
-5V to +5V |
| SEQ1 TRIG |
Sequencer 1 trigger out (step is on) |
0V to +5V |
| SEQ2 CV |
Sequencer 2 CV (attenuated, quantized) |
-5V to +5V |
| SEQ2 TRIG |
Sequencer 2 trigger out |
0V to +5V |
| CLOCK |
Labyrinth clock out/MIDI clock out |
0V to +5V |
Quantizer Modes
- 15 built-in scales, plus unquantized (see manual p. 38 for mappings).
- Select quantization mode by
BIT SHIFT + BIT FLIP (SEQ1) while running.
Reference: Voltages & Ranges
- Most CV/audio: -5V to +5V (Eurorack norm)
- Envelope outs: 0V to +8V
- Triggers/gates: 0V to +5V (5V logic)
- VCA CV inputs: 0V–+8V
- Clock/Trig in: works with 0V–+5/10V
- Main output: -5V to +5V (10Vpp) for modular, [1/4” rear audio out] for line level
Pro Tips
- Each path (VCW/VCF) has its own VCA (EG2 by default).
- Use PATCH BAY to break normals and customize routing.
- The sequencer is truly generative; use CORRUPT and BUFFER for evolving/locking patterns.
- U MIX allows you to submix and process external signals.
- BLEND can be CV modulated—try crossfading via envelope or sequencer.
- All parameters bolded in the manual correspond to actual knobs, sliders, buttons, or toggles.
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