| CTL | menu_setting | — | Defines behavior of the Preset CV input and attenuverter. Options: CV+Offset (direct scan), CV+Atten (attenuated CV), Trig+Offset (trigger advances preset, knob offsets), Trig Random (trigger randomizes all params in scope).675 |
| Encoder | knob | — | Rotary encoder for navigating and editing the menu system, changing preset, and adjusting oscillator octave/unison via shortcuts. Press to confirm selection. Hold and press other buttons to access respective menus.675 |
| Freq Knob Mode | menu_setting | — | Swaps the roles of the large and small tune knobs. Normal: large=Coarse, small=Fine. Reverse: large=Fine, small=Coarse.675 |
| OCTAVE SHIFT | menu_setting | — | Shifts the oscillator pitch by octave increments. Accessible via menu or shortcut (hold SELECT + turn encoder).675 |
| OSC A Coarse Tune | knob | — | Sets coarse tuning frequency of oscillator A. When coarse tune is at minimum and fine tune is at center, generates 16.35 Hz (C0) with no external voltage. In External Input mode, functions as manual GAIN control.675 |
| OSC A CV Attenuverter | knob | — | Attenuverter for the OSC A CV input. Uses a nonlinear curve to allow subtle modulation of a small range or full-swing travel without external amplification.675 |
| OSC A Fine Tune | knob | — | Sets fine tuning frequency of oscillator A. When set to middle position with coarse at minimum, generates 16.35 Hz (C0). In link mode, Oscillator B copies Osc A frequency plus B's fine tune influence.675 |
| OSC A MODE | button | — | Toggles OSC A between internal oscillator mode and External Input mode. In External Input mode, EXT is shown on display and the FM input receives the signal to be waveshaped. Also accesses OSC A options menu when held with encoder.675 |
| OSC A SELECT | button | — | Selects oscillator A as the target for waveform slider and attenuverter controls. When illuminated, OSC A receives waveform control motion. Hold and turn encoder to change OCTAVE setting. Hold encoder and press to increment UNISON parameter.675 |
| OSC B Coarse Tune | knob | — | Sets coarse tuning frequency of oscillator B. Disabled when Oscillator Link is active (B follows A's frequency). In External Input mode, functions as manual GAIN control.675 |
| OSC B CV Attenuverter | knob | — | Attenuverter for the OSC B CV input. Uses a nonlinear curve to allow subtle modulation of a small range or full-swing travel without external amplification.675 |
| OSC B Fine Tune | knob | — | 675 |
| OSC B Link | button | — | Links Oscillator B's frequency to follow Oscillator A. Disables OSC B coarse tune; B copies A's frequency plus B's Fine Tune and CV. Also accesses Main Global Options menu when held with encoder.675 |
| OSC B MODE | button | — | Toggles OSC B between internal oscillator mode and External Input mode. In External Input mode, EXT is shown on display and the FM input receives the signal to be waveshaped. Also accesses OSC B options menu when held with encoder.675 |
| OSC B SELECT | button | — | Selects oscillator B as the target for waveform slider and attenuverter controls. When illuminated, OSC B receives waveform control motion. Hold and turn encoder to change OCTAVE setting. Hold encoder and press to increment UNISON parameter.675 |
| PRESET Button | button | — | Enables Preset Manager (lights red). Press again to enter MORPH mode. Controls are locked to preset values; encoder changes the active preset. Factory reset triggered by holding this button at power-on.675 |
| Preset CV Attenuverter | knob | — | Controls preset selection offset or attenuation of the preset CV input, depending on the CTL setting in GLOBAL OPTIONS menu. In Trig+Offset mode, manually scans through presets.675 |
| Preset Scope | menu_setting | — | Waves Only: manages waveform sliders, XYZ attenuverters, unison/octave. All Params: additionally manages coarse and fine tune so oscillator pitch is preset-controlled.675 |
| STARTUP | menu_setting | — | Sets the power-on state of the preset manager. Options: PRESET OFF, PRESET ON, or MORPH ON. Useful in live performance setups with multiple Mk3 modules.675 |
| TONE | menu_setting | — | Applies subtle distortion flavors including quantization noise. Orthodox setting presents full 16-bit resolution with no distortion. Other settings emulate previous Piston Honda generations. Most audible on sinusoidal or additive waveforms at low frequencies.675 |
| UNISON | menu_setting | — | Adds a second detuned voice alongside the main oscillator. Number indicates frequency deviation; +OCT/-OCT adds a voice one octave up/down. Shortcut: hold encoder and press OSC MODE button to increment.675 |
| Waveform CV | menu_setting | — | Enables or disables the X, Y, Z waveform CV inputs for a specific oscillator. Setting to Off causes that oscillator to ignore incoming waveform CV, useful when running both oscillators independently.675 |
| X Attenuverter | knob | — | Attenuverter for the X axis CV input. Shared between oscillators with locking behavior; must be moved to unlock after SELECT press or preset load.675 |
| X Slider | fader | — | Selects position along the X axis of the wavetable cube for the currently selected oscillator(s). Exhibits locking behavior — must be moved from its current position to unlock after preset load or SELECT button press.675 |
| Y Attenuverter | knob | — | Attenuverter for the Y axis CV input. Shared between oscillators with locking behavior; must be moved to unlock after SELECT press or preset load.675 |
| Y Slider | fader | — | Selects position along the Y axis of the wavetable cube for the currently selected oscillator(s). Exhibits locking behavior — must be moved from its current position to unlock after preset load or SELECT button press.675 |
| Z Attenuverter | knob | — | Attenuverter for the Z axis CV input. Shared between oscillators with locking behavior; must be moved to unlock after SELECT press or preset load.675 |
| Z Slider | fader | — | Selects position along the Z axis of the wavetable cube (selects among the 8 waveform files) for the currently selected oscillator(s). Exhibits locking behavior.675 |