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Vermona | Mars


The M.A.R.S. is a monophonic synthesizer which gives you real analog power in only one rackspace. VCOs, VCF and VCA are build-up discrete upon the classical structure - of course with some special functions - so everyone who know a little bit about analog synthesizers is able to program the M.A.R.S., although its user interface is menu-based.


The two identical oscillators of the M.A.R.S. are completely analog - no DSPs. One oscillator has a sawtooth, a square and a pulse (with fixed pulthwidth) waveform as well as two sub-oscillators which produces squarewaves one and two octaves below the main oscillator. The sub-oscillators can be activated / deactivated separately from each other.

VCO1 can be synchronized to VCO2 (hard-sync) and both VCOs can be multiplied via the ringmodulator. One special feature is, that each oscillator has its own Glide, so you can set individual Glide times which sounds more fat than using the same Glide time for both oscillators. Beside the Glide, both oscillators also have Glissando. Glide and Glissando can be used at the same time!
The oscillators can be modulated by LFO one and its Attack-Decay envelope.


The M.A.R.S. has a 24dB lowpass filter with resonance. Its CUTOFF frequency can be modulatied by one of the two envelope generators, velocity, keytrack and a LFO. The filters Resonance can be modulated by both envelope generators and LFO2. Additionally, the CUTOFF frequency and RESONANCE can be modulated by different controllers like modulaton wheel, aftertouch, etc.

Low Frequency Oscillators

The M.A.R.S. has two LFOs. Both LFOs have two sine waveforms, a pulse and a triangle wave. The specialty of the LFO shapes is, that their symmetry can be changed. I.e. you can change the pulsewidth of the square waveform or transform the triangle to a negative or positive sawtooth.

LFO1 has an additional preceding ATTACK-DECAY envelope generator that can also be used as Delay parameter.

Envelope Generators

The M.A.R.S. has two classical ADSR envelope generators which modulates the VCA and the VCF. The envelopes can be triggered by keyboard, LFO or both - that offers interesting possibilities for rythmical modulations.


Pitchbender, Modulationwheel, Aftertouch and a connectable footswitch can control various functions like CUTOFF frequency, LFO speed and / or intensity, Fine Tune, Glide on/off, etc.

This allows very expressive playing of M.A.R.S. programms.


The M.A.R.S. offers memory for storing 127 programs.

M.A.R.S. Control Editor

The M.A.R.S. Control is an optional available programmer which controls each parameter of the M.A.R.S.. All in all there are 56 controllers on it. The M.A.R.S. control doesn't need an extra power source, it get's the necessary voltage from the M.A.R.S.
The programmer needs two rackspaces or can be used as desktop device.

Connecting Features

Beside the obligative MIDI IN and OUT/THRU sockets and output jack, the M.A.R.S. has a combined FOOTSWITCH / ENV OUT jack. It's possible to connect a footswitch for controlling various functions and for using the control voltage of envelope two for controlling external devices. This feature is very interesting with regard to our VERMONA effect units like the DAF-1, PH-16 or RM-1, which are all equipped with an external CV input.
Engine TypeAnalog
Voices (max)1
LFO2 Sample & Hold, Sine, Square, Triangle
Engine Detailed1 VCO, Saw Down, Square, Sub Oscillator
Filter (VCF)1 24dB Slope (4-pole), Low Pass, Resonance
Envelope (VCA)2 ADSR
Key typeN/A
CV-gate1 CV out
Legend: Obvious Y: Yes, N: No, N/A: Not Applicable
VCO Voltage Controlled Oscillator DCO Digital Controlled Oscillator
LFO Low Frequency Oscillator Sub Sub Oscillator
VCF Voltage Controlled Filter VCA Voltage Controlled Amplifier
Velocity As with a piano, the harder you hit a key, the louder the sound, unlike most organs which always produce the same loudness no matter how hard you hit a key. Aftertouch Pressing a key after you activated it. Channel Aftertouch, no matter which key, it will send a Channel message. Poly Aftertouch, sends the pressure per key instead of the whole channel.
Values for OSC, LFO, Filter, Envelope are per voice unless stated otherwise.

Manuals, patches etc.


If you like to discuss or talk about synths in all forms (including VST and modular), you are welcome to join the Facebook group "The Hard, The Soft and The Modular".

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