Eurorack Reference

4ms / 4ms/spherical-wavetable-navigator

Spherical Wavetable Navigator

Six-channel spherical wavetable synthesizer with six VCOs, six LFOs/envelopes, stereo audio outputs, 12 built-in spherical wavetables plus up to 108 user-created wavetables, scale quantization, and 108 preset slots. [36]

Specifications

HP
26
Depth
25 mm
+12V
185 mA
−12V
30 mA
+5V
60 mA
Last verified
2026-05-02

Capabilities

  • CV/Gate Mode cv-gate-mode
  • LFO lfo
    Six LFOs/envelopes with per-channel control of speed, shape (25 waveforms), amplitude, and phase. Output jacks with 0.4V to 8.8V amplitude range. Can sync to external clock. Can reach audio rates up to ~3kHz. [36]
  • Preset Storage preset-storage
  • Wavetable Oscillator wavetable-oscillator
    Six wavetable VCOs navigating 3D spherical wavetables (27 waveforms per sphere in a 3x3x3 3-torus). Independent pitch, level, waveform, and sphere selection per channel. 12 factory spheres plus up to 108 user-created spheres. Frequency range 16.35Hz (C0) to 96.3kHz. [36]
  • Wavetable Recording / Sphere Recording wavetable-recording

Jacks (15)

Inputs (13)

NameSignalVoltageDescription
1V/oct channel jacks cv 0V to 10V Six per-channel CV input jacks. Selectable via 1V/oct|VCA switch to control pitch (0V to +10V, 10-octave range, 1V/oct) or level (VCA mode, 0V=silent, +5V=normal volume). [36]
Browse CV mixed 0V to 5V [36]
Clk In clock ≥1.5V Clock input for synchronizing LFOs to external equipment. Requires amplitude of at least 1.5V and pulse width of at least 1ms. Maximum readable clock speed is about 20Hz (1200 pulses per minute). [36]
Depth CV cv 0V to 5V [36]
Dispersion CV mixed 0V to 5V [36]
Dispersion Pattern CV mixed 0V to 5V [36]
LFO CV cv 0V to 5V [36]
Latitude CV mixed 0V to 5V [36]
Sphere CV mixed 0V to 5V [36]
Spread CV cv 0V to 5V CV input that offsets the spread chord pattern (0V to +5V). Also functions as global gate/trigger jack when Transpose is patched and at least one channel is in CV/Gate mode. [36]
Transpose CV cv 0V to 10V CV input that shifts pitch of all six oscillators together with 1V/oct response over a 10-octave range (0V to +10V). Also responds to signals from DC to 20kHz for FM effects. [36]
WT Spread CV mixed 0V to 5V [36]
Waveform In audio — Audio input jack used in Sphere Recording mode to record and create new spherical wavetables from any modular or line-level signal. Also used as gate jack for Channel A in CV/Gate mode. [36]

Outputs (2)

NameSignalVoltageDescription
Audio OUT audio ≤9.5V Stereo audio outputs. Frequency range 0Hz (DC) to 22kHz, maximum amplitude 19Vpp. Use just the right jack for mono. [36]
LFO OUT cv ≤8.8V Six LFO output jacks, one per channel. Frequency range 0Hz to 3kHz, maximum amplitude 8Vpp. Default amplitude 5V; gain control adjusts from 0.4V to 8.8V. Can output waveshape, gate, or trigger depending on LFO Type mode. [36]

Parameters (19)

NameTypeRangeMin FWBehavior
1V/oct | VCA switch switch — — Selects whether channel CV jacks control pitch (1V/oct) or level (VCA) for all unlocked channels. Locked channels retain their previous mode, allowing mixed 1V/oct and VCA operation. [36]
Browse knob — — Navigates the sphere in a zig-zag (snake) pattern covering the entire sphere. Push+turn selects Sphere. Fine+turn adjusts by small amounts. In Sphere Recording Mode, push+turn changes Waveform Shift. [36]
Channel Buttons button — — In Mute mode: mute/unmute channels. In Note/Keyboard/CV-Gate mode: play notes. Hold while turning knob to adjust single channel. Fine+button locks/unlocks channel. Pressing both LFO buttons at once cycles through Mute/Note/Keyboard/CV-Gate/CV-Gate-Sustain modes. [36]
Depth knob — — Controls position in the Depth dimension of the sphere (red hue on lights). Push+turn activates Dispersion. Fine+turn adjusts by small amounts. Hold Channel button to adjust individual channel. [36]
Fine button — — Hold Fine while turning a knob to perform micro-adjustments. Fine+Transpose = detune by cents; Fine+Browse = browse sphere by small amounts; Fine+Spread = spread detuning; Fine+LFO Phase = fine LFO phase; Fine+LFO Speed = non-integer LFO speed; Fine+LFO Gain = fine LFO amplitude. [36]
LFO Gain knob 0.4V – 8.8V — [36]
LFO Phase knob — — Push+turn LFO Shape/Phase knob to adjust phase. Each click adjusts by 1/24th of a measure. Fine+turn adjusts by 1/288th of a measure. Tapping knob re-syncs all LFO phases. [36]
LFO Shape knob — — Selects one of 25 LFO waveshapes. Hold Channel button to adjust individual channel. Push+turn adjusts LFO Phase. Tapping the knob re-syncs LFO phases. [36]
LFO Speed knob — — Controls global clock divider/multiplier by stepping through integer divide/multiply values (÷64 to x32 and beyond). Hold Channel button to adjust individual channel. Fine+turn adjusts by non-integer amounts. Push+turn adjusts LFO Gain (output amplitude). [36]
LFO Type button — — Toggles LFO output between Shape (waveshape output), Gate (high when LFO above 50% amplitude), and Trigger (pulse when LFO crosses 50% threshold rising) modes. In Sphere Recording Mode becomes Monitor button. [36]
LFO->VCA button — — Toggles internal routing of each channel's LFO to its VCA to modulate channel level. Press to toggle all channels; hold Channel button + press to toggle individual channels. In Sphere Recording Mode becomes the Record button. [36]
Latitude knob — — [36]
Level Sliders fader — — Adjusts channel volume. When VCA mode is active, attenuates incoming CV before applying to VCA. Also used for panning adjustment when holding a Channel button. [36]
Load/Save Preset knob — — Turn to select preset slot. Tap then tap again to load; press 2 sec then tap to save; press 6 sec then tap to delete. Fine+Preset undoes/redoes last preset action. There are 108 preset slots across 6 pages. [36]
Longitude knob — — [36]
Octave knob — — [36]
Scale knob — — Push+turn Octave/Scale knob to select one of four quantization settings per channel: No quantization (light blue), Major scale (pink), Harmonic minor (orange), Semitones (dark blue). Forces pitch to fit within selected scale. [36]
Spread knob 1 – 26 — Push+turn the Transpose/Spread knob to select one of 26 preset chord patterns. Spreads channel pitches according to the selected pattern. Fine+turn applies spread detuning (each channel detuned by different amount). [36]
Transpose knob — — Shifts pitch up or down by semitones. Hold Channel button to adjust single channel. Fine+turn adjusts by micro-tonal (cent) amounts. Push+turn activates Spread function. [36]

Firmware history (3 versions)

VersionReleasedNotes
2.2 2020-09-14 Added Channel Panning feature, CV/Gate/Sustain mode, Startup Preset (loads last saved/loaded preset on power-up), and Select Bus preset load/save support. [36]
2.1 — Added CV/Gate Mode. [36]
2.0 — Added Record Single Waveform feature in Sphere Recording Mode and Enable/Disable Spheres feature. [36]

References (2)