vermona/fourmulator
fourMulator
A digital quad-LFO module for Eurorack offering four sync-able, phase-variable, CV-controllable LFOs plus an integrated clock generator and trigger sequencer output.1001
Capabilities 2
- Clock Sourceclock-source
- Integrated clock generator with TAP button, CLK OUT, CLK IN, and trigger sequencer output; can serve as master clock reference or follow external clock.1001
- LFOlfo
- Four independent sync-able, phase-variable, CV-controllable LFOs with six waveforms each, free-running or clock-synced.1001
Jacks 20 (10 in / 10 out)
| Name | Signal | Voltage | Description |
|---|---|---|---|
| Inputs (10) | |||
| CH1 CV | cv | -5V to 5V | CV input for Modulator 1: modulates frequency when free-running, phase shift when synced, or clock division when in CLK mode.1001 |
| CH1 RESET | trigger | 3.5V to 12V | Resets Modulator 1's waveform to its start point immediately on receiving a trigger or gate signal.1001 |
| CH2 CV | cv | -5V to 5V | 1001 |
| CH2 RESET | trigger | 3.5V to 12V | 1001 |
| CH3 CV | cv | -5V to 5V | 1001 |
| CH3 RESET | trigger | 3.5V to 12V | 1001 |
| CH4 CV | cv | -5V to 5V | 1001 |
| CH4 RESET | trigger | 3.5V to 12V | 1001 |
| CLK IN | clock | 3.5V to 12V | Accepts an external clock signal to override the internal clock for the modulators; internal clock is disconnected from modulators while this input is in use but still appears at CLK OUT.1001 |
| RESET | trigger | 3.5V to 12V | Global reset input: a single trigger or gate signal resets all modulators' waveforms to their start points simultaneously (individual RESET inputs override this).1001 |
| Outputs (10) | |||
| CH1 TRIGGER | trigger | ≤12V | Outputs a 12V, 10 ms trigger pulse at the start of each waveform cycle for Modulator 1.1001 |
| CH1 WAVE | cv | -5V to 5V | Outputs the selected waveform CV for Modulator 1; used to modulate filter cutoff, oscillator pitch, pulse width, or similar targets.1001 |
| CH2 TRIGGER | trigger | ≤12V | 1001 |
| CH2 WAVE | cv | -5V to 5V | 1001 |
| CH3 TRIGGER | trigger | ≤12V | 1001 |
| CH3 WAVE | cv | -5V to 5V | 1001 |
| CH4 TRIGGER | trigger | ≤12V | 1001 |
| CH4 WAVE | cv | -5V to 5V | 1001 |
| CLK OUT | clock | ≤12V | Outputs the internal clock signal as 12V, 10 ms pulses; remains active even when an external clock is connected to CLK IN.1001 |
| TRIG SEQ | trigger | ≤12V | Outputs a combined trigger sequence derived from the trigger signals of all synchronized modulators, with triggers merged according to their clock division factors.1001 |
Parameters 13
| Name | Type | Range | Behavior |
|---|---|---|---|
| CH1 SPEED | knob | 0.05Hz – 100Hz | 1001 |
| CH1 SYNC | switch | — | Modulator 1 offers only OFF and CLK positions — it cannot be synced to a neighbor, only used as sync reference or free-running.1001 |
| CH1 WAVE | knob | 1 – 6 | Selects one of six waveforms for Modulator 1: ascending sawtooth, descending sawtooth, square, triangle, sine, or random (sample & hold).1001 |
| CH2 SPEED | knob | 0.05Hz – 100Hz | Sets the free-running frequency of Modulator 2, or phase offset (0°–180°) when synced, or clock division when in CLK mode.1001 |
| CH2 SYNC | switch | — | Three-position switch: OFF (free-running), SYNC (locked to left neighbor's frequency with phase offset), CLK (clock division mode using internal or external clock).1001 |
| CH2 WAVE | knob | 1 – 6 | Selects one of six waveforms for Modulator 2: ascending sawtooth, descending sawtooth, square, triangle, sine, or random (sample & hold).1001 |
| CH3 SPEED | knob | 0.05Hz – 100Hz | Sets the free-running frequency of Modulator 3, or phase offset (0°–180°) when synced, or clock division when in CLK mode.1001 |
| CH3 SYNC | switch | — | Three-position switch: OFF (free-running), SYNC (locked to left neighbor's frequency with phase offset), CLK (clock division mode using internal or external clock).1001 |
| CH3 WAVE | knob | 1 – 6 | Selects one of six waveforms for Modulator 3: ascending sawtooth, descending sawtooth, square, triangle, sine, or random (sample & hold).1001 |
| CH4 SPEED | knob | 0.05Hz – 100Hz | 1001 |
| CH4 SYNC | switch | — | Three-position switch: OFF (free-running), SYNC (locked to left neighbor's frequency with phase offset), CLK (clock division mode using internal or external clock).1001 |
| CH4 WAVE | knob | 1 – 6 | Selects one of six waveforms for Modulator 4: ascending sawtooth, descending sawtooth, square, triangle, sine, or random (sample & hold).1001 |
| TAP | button | — | Sets the internal clock tempo by tap entry; a new tempo is applied after four consecutive taps.1001 |
Firmware history 0 versions
No firmware history recorded.
References 2
- [1001]
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[1002]
Vermona fourMulator product pageproduct_page● verified 2026-05-27