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