MATRIXSYNTH: New Eurorack Manufacturer Qosmo Modular


Friday, March 16, 2018

New Eurorack Manufacturer Qosmo Modular


Published on Mar 16, 2018 Ask.Audio

This is the first post to feature Qosmo. It looks like we have a new eurorack modular manufacturer in town.




The line-up via http://www.qosmomodular.com

XPULSER
Voltage controlled oscillator “sawtooth core” with 7 outputs

XTR3TONE
Voltage controlled 12/18/24 dB LP filter and integrated VCA

XDYNA
Voltage controlled amplifier with a different ‘flavour’

XTYNA
Double voltage controlled amplifier with a different ‘flavour’

XMIZAR
6 channels, 2 subgroups and 1 output mixer tools with offsets

XTORSION
Voltage controlled distortion with filter and crossfader

XMIX
Double ‘flavour’ utility: high quality averaged and unity mixer

XMULTI
Double ‘flavour’ utility: high quality buffered and unbuffered splitter

XENVELOPE
Voltage controlled AHR/AHDSR with lin/exp curves and triggers out


XPULSER

"XPulser is a expanded voltage controlled oscillator with the following features:

5 basic waveforms + 2 derived waveforms;
LFO/VCO working mode;
1 V/O input;
FM Exp & Lin dedicated INs + POTs;
Hard Sync input;
PWM capabilities + CV input with dedicated POT;
The oscillator is based on ramp core generator. Various waveshaper sections are used to obtain the desired wave.

The Tune potentiometer adjusts frequency from 10 Hz to over 15 Khz in VCO mode while in LFO mode it adjusts frequency from 0.3 Hz to 320 Hz. Fine potentiometer lets you adjust the tuning within -6/+6 semitones. Tracking is over 8 octaves with excellent characteristics. Frequency stabilizer uses a special heater circuit, as seen in the Moog Prodigy and in many other synthesizers. Due to its analog nature it needs about 20 – 30 minutes to warm up.

Separate controls for exponential and linear FM inputs are present, with their own level potentiometer, for more modulation capabilities simultaneously.

Pulse width modulation ranges from about 10% to about 90%. CV input, with its own level potentiomer, to control pwm, is available.

A beatiful aluminum panel with silver finish and an interface easy to understand make XPulser a simple yet effective module to use.

All waves are about +-5V amplitude.

Beefy sound!

The module is built with high quality components. Beatiful aluminium panel with silver finish. 100% Handmade."


XTR3TONE

XTr3tone is basically a low pass filter with two inputs for signals and four simultaneous outputs. Three outputs are the different slope filter and the fourth output is for the VCA. The unit is generally trimmed for one signal in input, while with two inputs the filter input is a bit saturated. This setting is useful to experiment with differents configurations. However you can adjust this setting with the proper trimmer on the side of the unit.

Cutoff of the filter can be adjusted with the big potentiometer or by CV (the ‘CVC’ input). The range is very wide, so you can experiment with various positions of the knob.

Resonance is controlled with the proper potentiometer (labeled ‘Res.’) or by CV (the ‘CVR’ input). A three position switch (positioned at the center of the unit) is used to select the mode of the filter: in the center position the filter behaves like a clean filter without resonance, so in this case the resonance controls have no effect, in position F.I the normal feedback path allows for the standard resonance while in position F.II a different feedback path allows for more screaming at higher settings (the path is saturated). ‘CVC’ and ‘CVR’ labeled inputs have their own level potentiometer.

A 1 V/O input is present, 10 Vpp covers the full range.

The 18 dB output is shifted by 180 degree in phase compared to the other outputs, by means of a jumper on the backside this can be changed. Experiment!

It’s not all: the VCA section is controlled by the curve selector switch (linear or exponential) on the left and by the three position switch on the right (12/18/24 dB). The switch on the right of the unit decides what of the filter output is directed to the VCA section. The potentiometer labeled ‘Amp.’ is used for the bias, while the ‘CVA’ input is for CV able to control the amplification. This CV has its own level potentiometer.

A beatiful aluminum panel with silver finish and an interface easy to understand make XTr3tone a classic low pass filter with a plus: multiple outputs with different slopes and an integrated VCA. And 100% Handmade.


XDYNA

Distortion / Voltage Controlled Amplifier.

A highly creative vca tool. First the signal in, usually audio or a slow signal down to 1 Hz is amplified, you can control the amplification with the “Drive” potentiometer, then is clipped, you can set the upper and lower bound by means of two trimmers, and finally is modulated by the envelope you feed in the CV in. “Offset” potentiometer is used as the initial gain of the VCA stage. “CV In” potentiometer is a attenuverter for the CV in. Polarity led is really useful to check for CV in wave.

VCA stage is made with a high quality vactrol to obtain a different “flavour” respect to the VCAs on the market.

You can feed a envelope in CV in between 0 and +5V, in this case the result is between 0 and unity, or if you prefer a bipolar signal between -10V and +10V, the “Offset” potentiometer can manage also this, the center position means it adds 0V.

Built with high quality components (1% metal film resistors, bicolor led, aluminium panel with silver finish, …) this VCA is ideal in any setup. It’s a creative tool for amplitude modulation, with longer tails thanks to the vactrol.

Made in collaboration with many musicians, that needed something quick and of good quality to shape the sound, or even slow signal down to 1 Hz.


XTYNA

Double Voltage Controlled Amplifield (Vactrol).

This is a double VCA made with vactrols. It’s the same as XDYNA without the distortion section. The signal in is usually audio or cv, INs are DC-coupled. “Offset” potentiometer is used as the initial gain of the VCA stage. Polarity led is really useful to check for CV in wave.

VCA1’s IN is normalled to VCA2’s IN, VCA1’s CV is normalled to VCA2’s CV, so a different response curve creates, more exponential.

VCA stage is made with a high quality vactrol to obtain a different “flavour” respect to the VCAs on the market.

You can feed a envelope in CV in between 0 and +5V, in this case the result is between 0 and unity, or if you prefer a bipolar signal between -10V and +10V, the “Offset” potentiometer can manage also this, the center position means it adds 0V.

Built with high quality components (1% metal film resistors, bicolor led, aluminium panel with silver finish, …) this double VCA is ideal in any setup.

Made in collaboration with many musicians, that needed something quick and of good quality to shape audio and cv.


XMIZAR

Mixer Tool.

An essential utility in modular systems, XMIZAR is more than a simple mixer tool.

It has 6 channels and 2 subgroups: ch. 1-3 INs are attenuverters while ch. 4-6 are amplifiers 0-1x-2x. Every channel has its single out.

Channels 1-3 can be used standalone as Offset Generator, or as Attenuverter, in both cases is excluded from the sum. Channels 4-6 can be used standalone as Offset Generator, or as attenuator/amplifier, in both cases is excluded from the sum.

Subgroup A is the sum of channels 1-3, while Subgroup B is the sum of channels 4-6.Out is the sum of Subgroup A and Subgroup B.

The unit will have a expansion VCA unit and a expansion Meter unit in 2018.

The module is built with high quality components. Beatiful aluminium panel with silver finish.
100% Handmade.

Made in collaboration with many musicians, that needed something quick and of good quality to process signals (audio or cv) and mix them.


XTORSION

Voltage Controlled Distortion Filter Crossfader.

XTorsion is a destruction unit: featuring a pre-cut high pass filter, a vactrol overdrive with high gain and a soft clipping stage with germanium diodes, it destroys the original signal. If this is not all, the signal can be hard clipped, positive or negative or none, then filtered with the voltage controlled 12 dB low pass section.

The DIST output is the result of this processing.

Beside the distortion section, a crossfader section acts as a blender between dry signal and wet signal, again with control voltage. The crossfader sections can react to audio rate signals for creating strange metallic sounds.

The MIX output is the crossfader section output.

CVD and CVD inputs accept 0/+5V signals, while CVM input accepts -5/+5 signals.

IMPORTANT: the drive stage is a very high gain stage, so it can amplify also small signals!

The unit is made with vintage components and a beatiful aluminium panel with silver finish. 100% Handmade.


XMIX

Utility.

Two independent 4-to-1 mixers in different “flavors”: the upper section is a unity mixer, the lower section is a averaged mixer. Polarity leds are really useful to check for waves.

Both mixers are useful for adding in a “quick and dirty” manner four signals. Unity mixer means that the input signals are not scaled and added togheter with the original amplitude. Averaged mixer means that the input signals are scaled by a 1/n factor, in our case of a 1/4 factor, then added togheter. It is obvious that if you feed a 10 Vpp signal in input 1 then you will get a 2.5 Vpp signal in output.

Built with high quality components this utility is ideal in any setup.

It’s a utility made in collaboration with many musicians, that needed something quick and of good quality to add togheter cv or audio from the same source or from different sources.


XMULTI

Utility.

Two independent 1-to-4 multiples in different “flavors”: the upper section is a buffered splitter, the lower section is a unbuffered splitter. Polarity leds are really useful to check for waves.

Buffered multiple is recommended when no signal loss is required (cv pitch control, …) while unbuffered multiple when a little loss is of no importance. For a unbuffered multiple is normal to have a little loss of signal amplitude.

Built with high quality components this utility is ideal in any setup.

It’s a utility made in collaboration with many musicians, that needed something quick and of good quality for all routing needs, for both cv and audio.


XENVELOPE

Voltage Controlled AHR/AHDSR Envelope Generator.

XEnvelope is a digital envelope generator with three working modes: Gate, Trigger and LFO.

In gate mode the unit generates a AHDSR envelope, where the attack, decay, release can range from 1 ms to 8.4 s, hold can range from 1 ms to 1 s. In trigger and lfo modes the unit generates a AHR envelope. In lfo mode it restarts at the end of the release phase. A jumper on the backside permits the choice of +5V or +10V envelope outputs.

The unit features complete cv control over all the phases. (Inputs 0/+5V).

Positive and negative outputs are available. In addition three outputs are available for the End of Attack phase, End of Hold/Decay phase, End of Release phase triggers. (Triggers outputs +10V, 5 ms width).

A switch selects linear or exponential curve.

The module is built with high quality components. Beatiful aluminium panel with silver finish. 100% Handmade.

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