Korg — Volca Bass
It looks like you've attached the manual pages for the Korg Volca Bass, which is not a Eurorack module but a standalone analog groovebox (though it does feature some connectivity often useful in modular setups!). Still, here is a concise "cheat sheet" for reference, formatted for Eurorack musicians and modular context, and including all requested info.
Korg Volca Bass Manual PDF
Korg Volca Bass Cheat Sheet
Overview
- Standalone analog bassline groovebox
- 3 VCOs (saw/square), analog 12dB/oct filter, sequencer, MIDI, and SYNC I/O
- Not a Eurorack-powered module, but can interface with modular/sequencer systems
Inputs & Outputs
| Jack/Terminal |
Type |
Function |
Voltage Range |
| DC 9V |
Barrel Jack |
Power (use ONLY specified adapter) |
9V DC center+ |
| MIDI IN |
5-pin DIN |
External MIDI note, sync, control |
MIDI Standard |
| SYNC IN |
3.5mm TS (Mono) |
Clock Input (step advance) |
Up to 20V, typically 5V pulses (15ms) |
| SYNC OUT |
3.5mm TS (Mono) |
Clock Output (step pulse: for chaining devices) |
5V pulse (15ms) |
| Headphone OUT |
3.5mm TRS |
Main audio output (also disables speaker) |
Line/headphone |
No CV/Gate inputs for pitch or modulation. Only sync and MIDI input for control!
Panel Controls
Knobs:
- OCTAVE: Select active keyboard octave
- TEMPO: Sequencer tempo
- VOLUME: Output level
- VCO1/2/3 PITCH: Pitch offset per VCO (+/- 1 octave)
- CUTOFF (VCF): Filter cutoff frequency
- PEAK (VCF): Filter resonance (emphasis)
- EG ATTACK: Envelope attack time
- EG DECAY/RELEASE: Envelope decay/release time
- EG INT: Envelope-to-filter depth
- LFO RATE: LFO speed
- LFO INT: LFO depth/intensity
Buttons:
- VCO1/2/3: Toggle/mute active oscillators for editing/playing
- FUNC: Hold for accessing parameter/secondary functions
- MEMORY: Sequence memory access/save
- STEP MODE: Enter step sequencing mode
- PLAY (►): Play/Stop sequencer
- REC (●): Enter record mode
Touchpad:
- Multi-touch Keyboard: Play notes (used for inputting sequence notes)
Step Buttons (1-16):
- For sequencer steps, global settings, or saving sequences depending on mode
Voltage/Control Summary
- SYNC IN: Accepts 5V clock pulse ("step" clock, not 1V/octave or gate), 15ms or typical modular gates fine
- SYNC OUT: Provides 5V clock pulse, 15ms, per step (can mult to modular for clocking)
- Headphones OUT: Main audio—can be patched to mixer or external modular effects, line level
Hidden/Advanced Features
- Step Recording, Active Steps, Slide Editing: Hold FUNC, press REC/STEP MODE, edit on step buttons
- Mute VCOs: Hold FUNC + VCO1/2/3 button
- Group VCOs: Hold FUNC + step 1/2/3 (choose unison/chord mode for sequencing)
- LFO Target: FUNC + steps 4-6 (amp, pitch, cutoff mod)
- LFO Shape: FUNC + step 7 (triangle/square)
- Oscillator shape per VCO: FUNC + steps 8-10
- Envelope Sustain/AMP: FUNC + steps 11/12
SYNC & Modular Use
- SYNC IN: Compatible with modular 5V triggers/gates for clock. Use as a sync'd sequencer or drum-clock source/target.
- SYNC OUT: Use as a clock source to chain to other gear, modular clock dividers, sequencers, etc.
- No direct CV pitch or gate inputs! Only step advance is supported for modular sync.
Memory & Global Settings
- Sequence Memory: 8 slots (select with MEMORY + 1-8)
- MIDI Channel: Hold MEMORY while powering on, select 1-16
- Battery Type/Other Globals: Hold FUNC while powering on, set with step keys
Reference
- Audio Output: Stereo mini-jack; can patch to modular mixers/recorders but may need attenuation
- Sync Jacks: Pass modular clocks/triggers directly; can clock from Eurorack modules
Korg Volca Bass Full Manual PDF
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