mutable-instruments/shelves
Shelves
A voltage-controlled four-band EQ filter with low-shelf, high-shelf, and two parametric tone controls, all sweepable over the full audio range and CV-modulatable. The parametric sections are realized as state-variable filters with individual LP, BP, and HP outputs.926
Capabilities 2
- Multiband EQmultiband-eq
- Four-band equalizer with low-shelf, high-shelf, and two parametric bands; all frequency controls span the full audio range and are CV-modulatable.926
- Multiband Filtermultiband-filter
- The two parametric sections are state-variable filters exposing individual LP, BP, and HP outputs, enabling use as a multiband filter bank.926
Jacks 10 (3 in / 7 out)
| Name | Signal | Voltage | Description |
|---|---|---|---|
| Inputs (3) | |||
| Global FREQ CV | cv | — | Simultaneously offsets the FREQ setting of all four bands.926 |
| Global GAIN CV | cv | — | Simultaneously offsets the GAIN setting of all four bands.926 |
| IN | audio | — | Main audio input; an optional -6dB pre-gain attenuation can be enabled via a jumper on the back of the module.926 |
| Outputs (7) | |||
| OUT | audio | — | 926 |
| Parametric 1 BP | audio | — | 926 |
| Parametric 1 HP | audio | — | 926 |
| Parametric 1 LP | audio | — | 926 |
| Parametric 2 BP | audio | — | 926 |
| Parametric 2 HP | audio | — | 926 |
| Parametric 2 LP | audio | — | 926 |
Parameters 11
| Name | Type | Range | Behavior |
|---|---|---|---|
| High-shelf FREQ | knob | 20Hz – 20000Hz | Sets the corner frequency of the high-shelf filter; all frequencies above this point are boosted or cut.926 |
| High-shelf GAIN | knob | -15dB – 15dB | Controls the amount of boost or cut applied to the high-shelf band; center position applies no modification.926 |
| Input pre-gain | jumper | — | When enabled, attenuates the input signal by -6dB before EQ processing; disabled by default.926 |
| Low-shelf FREQ | knob | 20Hz – 20000Hz | Sets the corner frequency of the low-shelf filter; all frequencies below this point are boosted or cut.926 |
| Low-shelf GAIN | knob | -15dB – 15dB | Controls the amount of boost or cut applied to the low-shelf band; center position applies no modification.926 |
| Parametric 1 FREQ | knob | 20Hz – 20000Hz | Sets the center frequency of parametric band 1; CV-controllable at 1V/Oct.926 |
| Parametric 1 GAIN | knob | -15dB – 15dB | Controls the amount of boost or cut applied around the center frequency of parametric band 1.926 |
| Parametric 1 Q | knob | 1 – 10 | Sets the selectivity (bandwidth) of parametric band 1, from very wide to very narrow; can exceed 10 with CV modulation.926 |
| Parametric 2 FREQ | knob | 20Hz – 20000Hz | Sets the center frequency of parametric band 2; CV-controllable at 1V/Oct.926 |
| Parametric 2 GAIN | knob | -15dB – 15dB | Controls the amount of boost or cut applied around the center frequency of parametric band 2.926 |
| Parametric 2 Q | knob | 1 – 10 | Sets the selectivity (bandwidth) of parametric band 2, from very wide to very narrow; can exceed 10 with CV modulation.926 |
Firmware history 0 versions
No firmware history recorded.
References 2
- [926]
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[927]
Mutable Instruments Shelves product pageproduct_page● verified 2026-05-24