Mutable Instruments Shelves MKII

4-band parametric EQ

 262,30For European customers, please select your country to view the correct price including vat

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Out of Stock


Shelves combines the possibilities of a four-band EQ, as we know it from mixing consoles, with the frequency rage and CV possibilities of a filter. The module’s sound is in between a filterbank and tone-controllers.

The Mk2 version integrates the individual output expander which was an option for the Mk1 version.


The module contains four EQ channels: #1 is a low-shelf, #2 and #3 are parametric EQs and #4 a high-shelf. All feature manually and 1V/oct voltage-controllable frequency and gain, the parametric channels additionally have a Q parameter.
Unlike classic EQs each channel FREQ has a full frequency range of 20Hz-20kHz like filters do. FREQ CV inputs have a characteristic of 1V/octave. GAIN goes from -15dB to +15dB and the gain CV input has a characteristic of 3dB/V. Filter sensitivity Q goes from 0.5 to 1000.
In addition there are global CV inputs for controlling frequency and gain of all four channels simultaneously.
The parametric channels 2 and 3 are, behind the scenes, two fully-blown multi-mode filters. For this reason each channels is equipped with individual outputs forthe filter types low pass, band pass and high pass.

The sound is more sublte than of a bandpass filter – for that reason the module is very useful to shape and color the sound or to emphasize formants in very complex patched with lots of feedback or directly in a feedback loop.


per high shelf and low shelf EQ: CV inputs for frequency and gain
per parametric EQ: CV inputs for frequency, Q and gain. Individual outuputs for low pass, band pass and high pass.
global CV inputs for frequency and gain
audio input and output


3U Eurorack module, 18HP wide, 25mm deep
power consumption: 75mA @ +12V and 75mA @ -12V



25 mm


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