Individually operated and due to its dual oscillators and dual
multimode-filter, MICROZWERG offers a lot more than typical analogue
basses and lead sounds. Prepare yourself for some special timbres. The
signal path and modulations are quickly reconfigured using a few patch
chords with the result of an enormous boost in sonic variety. Combined
with other members of MFB’s ZWERG synthesizer family or even a modular
system, MICROZWERG’s possibilities grow further.
A brief overview to the sections of MICROZWERG:
Both oscillators offer triangle, saw tooth and rectangle waveform
shapes. Where oscillator 1 also offers a needle impulse, VCO 2 has a
built-in noise generator. VCO 2 can be detuned by plus minus one octave
in reference to VCO 1. Both oscillators can also be synced, using a
patch connection. In addition, the separate output of VCO 2 can be used
to modulate the filter. Finally, ring modulation is possible in
combination with MEGAZWERG, where the ring modulated output can be fed
back into MICROZWERG.
The two state-variable multimode-filters run with 12dB slope per
octave and offer lo-, hi- and bandpass-modes as well as notch-filtering.
The filters are prewired in series to increase the slope when used in
same operation mode. Here, the slope is variable because both
cutoff-controls can be shifted against each other using the slope
control. Combining a lo- and hipass-filter result in a variable band
pass with adjustable bandwidth and individually controllable resonances.
When preferred, a parallel routing is possible using a patch
connection, too. In this case, MICROZWERG allows two separate shifted
bandpass-filters, notch-filtering with variable bandwidth or a
combination of bandpass-filter with followed lo- or hipass-filter.
Resonance can reach up to self-oscillation for both filters. The
cutoff-frequencies are manually controlled simultaneously or by
envelopes. They can be shifted against each other using the
space-control. Modulations by LFO or CV can address either filter 1 or
A simple patch from Key CV to the contour- or mod-input can achieve
pitch-dependent cutoff-frequency control. Because both filters offer
independent in- and outputs, MICROZWERG is also destined to be used as
an effective dual-filter for external sound sources.
The ADSR envelope is internally prewired to control the filters’
cutoff-frequency. MEGAZWERG or any modular system can jump in via patch
chords whenever a second envelope is needed.
The two LFO offers four waveform shapes each and a one-shot-function,
where the selected waveform is played only once after a gate-trigger,
thus imitating a simple envelope that might be used for pitch or VCA
control. LFO 2 includes a sample & hold.
Internal modulation wirings offer LFO control over the filters’
cutoff as well as the oscillators’ pitch or VCO 2’s pulse width. LFO 2’s
speed can be modulated by an external control voltage, allowing
increasing or decreasing the speed by a factor of 30. Using this
feature, MICROZWERG is capable of extreme slow and fast modulations.
The control signals of the envelope and both LFOs are available as
CV-outputs and can therefore be used to control other functions of
MICROZWERG as well as in other analogue synthesizers and modular
The signal-path VCO 1/2-VCF 1/2-VCA as well as the common main
modulations is internally prewired, so that MICROZWERG can be played
immediately. All further routings are created using the patch jacks.
These can be used or controlled by MICROZWERG itself or any compatible
MICROZWERG can be controlled by MIDI from any compatible keyboard or
DAW. Note commands are received as well as pitch-wheel (+/- 2 semitones)
and modulation-wheel data, the latter controlling the filter’s cutoff
MFB’s MICROZWERG has the following dimensions: 175 x 125 x 38/72 mm.