INM-Exp

Expander for Infernal Noise Machine

The INM-Exp is an additional set of five waveform outputs and three frequency controls for the Infernal Noise Machine.

The toggle switch selects how it is controlled: When set to Exp, the LFO output is controlled only by the expansion module and is isolated from the main unit, overriding and ignoring the CV + Mod source from the main INM-E. Tune controls the frequency, just as the one on the main INM-E, and CV is the level control for the CV input jack.

When set to INM, the LFO tracks the CV + Mod signal in the main INM-E as per usual and the INM-Exp knobs and CV jack are disconnected from the system; they do nothing. The LFO works as normal, but with the LFO waveforms additionally available from the INM-Exp jacks. This means the LFO tracks the 1V/octave VCO to some degree, but the LFO is not 1V/oct, so don't expect flawless tracking.

In specific:

With INM-E VCO toggle set to 1V/oct and INM-Exp set to Exp:

INM-E VCO outputs are 1V/oct rate, tracking CV +Mod source as explained in original description.
INM-Exp outputs are LFO rate, tracking the INM-Exp Tune + CV jack, no modulation from the main INM.
With INM-E VCO toggle set to 1V/oct and INM-Exp set to INM:

INM-E VCO outputs are 1V/oct rate, tracking CV +Mod source as explained in original description.
INM-Exp outputs are LFO rate, tracking CV +Mod source as explained in original description, INM-Exp knobs and CV input are disabled.
With INM-E VCO toggle set to LFO and INM-Exp set to Exp:

INM-E VCO outputs are LFO rate, tracking the INM-Exp Tune + CV jack, no modulation.
INM-Exp outputs are LFO rate, tracking the Exp Tune + CV jack, no modulation from the main INM.
With INM-E VCO toggle set to LFO and INM-Exp set to INM:

INM-E VCO outputs are LFO rate, tracking CV +Mod source as explained in original description.
INM-Exp outputs are LFO rate, tracking CV +Mod source as explained in original description.