Mûmack is a 100% analog VCO (Voltage-Controlled Oscillator) with a very rich and powerful sound. It allows for alteration or enhancement of waveforms in multiple ways, which can be combined and associated with a VCA in various modes. The amplitude covers 8 octaves at 1V/octave and beyond, enabling the entire audible range to be covered.

Peak Compressor

In the central position the signal is not modified. Turning the potentiometer to the right or to the left will compress the signal positively or negatively. It is this signal that will then feed Usual, Mûm and Hack. An LFO is dedicated to the compressor, controllable in speed and amplitude. A CV input with attenuator can also control the compressor.

USUAL

The three waveforms are freely mixable, a CV input and a potentiometer can change the shape of the rectangle wave (PWM). The compressor intervening upstream, it can strongly influence the final form and the amplitude of USUAL. This produces complex analog waveforms, moving in time with the LFO or the CV input. The linear potentiometer makes it possible to mix the signal with the others, and to dose the volume of the direct output. The rotary potentiometer acts as an attenuator for the VCA input.

MÛM

The Waveform potentiometer move the waveform of Mûm continuously from a attenuated triangle to a more pronounced triangle, then to a sinusoid and finally to a square wave. An LFO allows you to add a vibrato adjustable in speed and amplitude. The linear potentiometer makes it possible to mix the signal with the others, and to dose the volume of the direct output. The rotary potentiometer acts as an attenuator for the VCA input.

HACK

Mûm's signal is taken up in a Wavefolder + compressor. Depending on the settings of the Peak compressor, and the three LFOs, we obtain complex, moving, organic waveforms. Again the linear potentiometer allows to mix the signal with the others, and to adjust the volume of the direct output. The rotary potentiometer acts as an attenuator for the VCA input.

ALL

The three channel (Usual, Mûm, Hack) are mixed and brought together in a single output. The output volume is adjustable and a CV input with attenuator works like a VCA.

MIXER & VCA

The voltages produced by Mûmack, as is the case with many analog VCOs, can be high. The mixer allows them to be attenuated if necessary. Each of the three channels, and the product of the three, can be controlled by the VCA, with attenuator. The VCA is designed to add distortion at high values. The mixer is exponential for more subtle adjustments in low values.

Tech Specs

Width: 30 HP
Depth: 40 mm

Current Draw:
+12 V  155 mA
–12 V  155 mA
+5 V  0 mA

Power connector and Knurlies