Tags: Mixer module

Notes: The Quad VCA is a compact and feature packed module that is sure to find its way it almost all of your patches. In addition to being used for standard VCA duties it can also be used as a mixer and signal booster.

Features:

- Manual LEVEL control per VCA which is convenient when using the module as a mixer or for biasing when CV modulating the VCA with a bipolar LFO.
- Dedicated CV attenuators with dual colour LEDs for monitoring bipolar CV signals.
- Continuously adjustable response from linear to exponential per VCA.
- Each CV input is normalled to the adjacent one for cascaded control.
- Each output is normalled to the mix input of the adjacent one which allows you to use adjacent sets as submixes or the fourth output can be used as a master mix output when none of the other outputs are patched.
- Each VCA has a boost switch that increases the output level by approximately +6dB (double).

Notes: A-138s is a simple but useful 4-in-2 mixing tool. It has four inputs available. Each input is equipped with an attenuator (Level) and a panning control that is used to distribute the signal to the left and right output. Beyond stereo mixing it is equally suited to create variable parallel routings. For example: Any of the four inputs may be routed in variable intensity to feed two filters.

You may regard the A-138s as a smaller version of the A-138m Matrix Mixer.

Inputs and outputs are DC coupled, i.e. the module can be used for the mixing of control signals too.

- 3U Eurorack module, 8 HP wide, 30 mm in depth
- Power consumption: 10 mA at +12 V and 10 mA at -12 V

Notes: Mixup is a versatile, expandable audio mixer for Eurorack format. It has eight inputs (6 on the front panel) and two outputs. Inputs 1 and 2 are single-channel mono inputs, each with its own mute switch and level control; Input 3 is a dual-channel stereo input with a shared mute and level control; and input 4 is an auxiliary unity-gain, non-mutable stereo input.

Using bus connectors on the back panel, you can chain multiple Mixups together in series, giving you the ability to mix together even more inputs, or to create sub-mixes for routing around larger systems.

Because Mixup is designed specifically for audio (and not for CV mixing), it uses AC-coupled circuitry (which reduces the potential for 'pops' when muting and unmuting audio), and it uses audio-grade, logarithmic attenuators for a smooth, even response across the entire volume range.

Notes: 'Tangle Quartet' is a high quality quad linear voltage controlled amplifier (VCA) providing individual level control of 4 signal inputs with both individual outputs and a combined 'mix' output (for non patched outputs) . Control signal inputs and associated attenuation controls allow for voltage control of signal levels. Control inputs are normalised to 5v thus providing manual mix control in the absence of control signals.

Technical Specifications:

Supply: +/-12V (Reverse voltage protection)
Current Draw: ~80ma
Size: 8 HP
Depth: 32mm (including power header)

Notes: The most complex modulator is you. The Planar 2 puts macro control over six outputs - including a quad panning mixer - into your hands with a buttery smooth joystick. Record up to 30 seconds of your own movements, stretch it or mangle it with scan mode, use a trigger for playback, or just loop it - synced or not. Add yourself to your patch.

With its smoothly responsive precision joystick, Planar 2 facilitates hands-on vector control of two entirely independent sets of outputs (quadrants A-D, and axis X/Y), plus the ability to capture and playback your gestures. Recording your joystick movements enables the creation of organic and complex envelopes, wild and wobbly LFOs, or extended sonic evolutions. It mixes, morphs, routes and pans audio inputs; triggers gates; outputs control voltages and is itself, CV-controllable. Planar 2 puts the 'joy' back in 'joystick,' and the 'fun' back in 'function generator.' Its multitasking and tactile interface makes it a flexible and unique control device, no matter what your musical genre.

Notes: A-135-2 is a miniature version of the A-135-1. Behind a front panel with 8 HP only four linear VCAs (voltage controlled amplifiers) and a voltage controlled mixer based on the VCAs are available.

Controls, In/Outputs and Functions of each VCA:

- Level (manual control of the VCA amplification), small rubberized knob (L1...L4)
- Control voltage input with associated attenuator (CV1...CV4), for the full VCA control range about 0...+5V control voltage are required (attenuator fully clockwise), for higher control voltages the attenuator is used, the attenuators are without knobs, just plastic shafts with white marker
- Signal Input
- Signal Output
- All inputs and outputs are DC coupled. Consequently the VCAs can be used to process both audio and control voltages (e.g. to control the level of LFOs or envelopes)
- The signal input is not equipped with an attenuator. But the VCAs can process all signals up to 15Vpp / -7.5...+7.5V without clipping. In case of higher levels an external attenuator is required (e.g. A-183-1).
- The available amplification range is 0...1, the maximal amplification is 1 (i.e. it "clips" and remains at 1 even if the control voltage goes beyond the value that corresponds to amplification 1)

Functions of the voltage controlled mixers:

- Two outputs ("Selected" and "All")
- Selected output: the ouput if a VCA is removed from this sum signal when a plug is inserted into the corresponding VCA output.
- All output: sum of all VCA outputs, regardless of inserted plugs into the VCA outputs
- The maximal amplification is about 0.6 to avoid clipping at the mixer outputs (otherwise the outputs may distort with 15Vpp signals at each signal input and full amplifications)

Special functions of the voltage controlled mixers (selectable by internal jumpers):

- Dual Stereo VCA: In this case the control unit of VCA1 (L1 + CV1) affects also VCA3 and the control unit of VCA2 (L2 + CV2) affects also VCA4, the control units of VCA2 and VCA4 are out of operation
- Quad VCA: In this case the control unit of VCA1 (L1 + CV1) affects all four VCAs. The control units of VCA2, VCA3 and VCA4 are out of operation. In this mode the module has the same function as module A-132-2. That's why module A-132-2 will be discontinued.
- Normalling of the signal inputs: by means of internal jumpers signal input 1 can be normalled to signal input 2, signal input 2 to signal input 3 and signal input 3 to signal input In 4. That way the same input signal can be distributed to four different channels by means of control voltages (e.g. quadrophonic distribution of audio signals). Suitable control voltage sources are e.g. A-144 (Morphing Controller) or A-143-9 (Quadrature LFO).

Notes: Mix is a 4 channel mixer that is great for audio or control voltage signals. Up to four inputs can be combined to a single output each with its own level control.

Notes: Module A-138m is a 4 x 4 matrix mixer with switches for unipolar/bipolar mode for each column. Unipolar means that the controls work as attenuators. Bipolar means that the controls work as polarizers. In this mode the amplification is zero in the middle position of the corresponding control. Turning the knob counterclockwise from the center position the signal is subtracted from the output sum with increasing amount (i.e. negative). Turning the knob clockwise from the center position the signal is added to the output sum with increasing amount. The module is DC-coupled and can be used for both audio and control voltage mixing.

By means of an internal jumper one can select if the four upper controls work as DC offset generators - provided that no patch cord is plugged into the upper input socket. If this feature is not required it can be deactivated by removing the jumper on top left of the pc board. The function is identical to the A-138a/b.

Dimensions
20 HP
20 mm deep

Current Draw
30 mA +12V
30 mA -12V

Notes: The modDemix music synthesizer module features 2 identical direct-coupled balanced modulator circuits that may be used together or independently for Ring Modulation, VCA, Mixer, Signal Multiplication, Voltage Controlled Polarization, Attenuation and more.

Features

Unique balanced modulator circuit turns OFF around zero volts at the Carrier/ Control INput, making the circuit behave well as a VCA.

STRENGTH is a Combo Knob, with nothing patched to STRENGTH CV IN, it works as a standard panel control, setting Level. With signal patched to STRENGTH CV IN, it works as an attenuator, setting the strength of the modulation.

Both circuits feed a summing stage, allowing the module to be used as a voltage controlled mixer.

AUXiliary IN allows for the stacking of multiple modDemix and/ or Optomix to create larger mixes.

Part of a decentralized mix console integrated throughout the system along with Optomix, X-PAN, Dynamix, and RxMx.

Able to introduce warm distortions to audio signals, sounds like no other VCA or Ring Mod.

MAX BLINKENLIGHTS, 8 LEDs packed into a small 6hp module.

Pairs well with MATHS and Optomix.

Specifications

Width: 6hp
Max Depth
(incl. power cable): 32mm

Power:
30mA@ +12V
30mA @ -12V

Notes: The 333 is a summing and distribution module for Eurorack modular systems.

It is composed of three identical sections, the red, yellow and green, each of those featuring three inputs summing amplifier with three independently buffered outputs.

Derived directly from the CGM creative mixer series, the sum section is DC coupled, allowing the sum of control voltages as well as audio signals.

With an extremely low tolerance in both sum and output sections, it is suitable also for summing quantized voltages like the ones coming out from the quantized outputs of the SAPEL.

In case CVs or audio signals are particularly hot, the 6dB attenuator might be helpful to reduce exactly by 50% the incoming signals.

Red and yellow output are also normalled to the 1st jack socket of the yellow and green input: in this way this module can also work as a 1 to 9 buffered multiple.

Notes: Triplatt is a three-channel active/buffered attenuverter and summing mixer. Each channel has a knob, which can function as a unipolar attenuator or a bipolar attenuverter, depending on the setting of its corresponding two-position polarity switch.

Each input is normalled to a built-in precision +5V DC voltage source. With nothing plugged into the jacks, each knob controls a voltage range of 0 to +5 V or -5 to +5 V depending on the position of the channel polarity switch. Outputs A and B are also capable of a range of 0-10 / -10 to +10 when using the special function switches.

Each output is normalled to mix into the output of the channel below, making it possible to do sub mixes in groups of two or three.

In addition, each channel has a "special function" switch to alter its input voltage in a specific way. Channel A has a 2x voltage multiplier switch, allowing you to double the voltage sent into Channel A. Channel B has a +5V switch, allowing you to add 5V to whatever voltage is sent into Channel B. Channel C has a mute switch, allowing you to completely turn off the signal being sent into Channel C.

Notes: 3xMIA is a 6-channel attenuverting mixer/offset/scale/polarizer.

3 blocks of 2-channel attenuverting mixers, using dual concentric pots. Each channel can be switched to mix with the subsequent channel, allowing for 2-2-2, 4-2, 6 mix configurations.

With nothing plugged into an input, an offset is normalled to that channel. The inner knobs control the A inputs, while the outer knobs control the B inputs.

DC coupled, so it can be used for audio, CV, or both at the same time.

80 mA +12V
80 mA -12V
35 mm Depth
6 HP wide

Notes: The module is built around high quality VCA chips from THAT Corp, as well as low noise opamps. It offers clickless muting and equal loudness panning. The distinct feature is that voltage control is dynamically compressed should it yield clipping when pushed too hard. Also, in both modes the attenuators offer full closing of the corresponding channel, regardless of being controlled by the CV, or not. The VCAs fully open (0dB gain) at CV=8V in Env mode and CV=5V in LFO mode. All the input and output signal levels are Eurorack levels.

Multiple Praga units can be chained thanks to dedicated headers on the back. The mixed stereo sum of each unit in the chain is added to the mixing bus of all units downstream.

A dedicated Hrad expander will offer master volume control, gate inputs for channels muting/unmuting, headphone amplifier, and voltage control over aux sends.

Notes: Pico Mixer is simple 3 channel DC coupled mixer intended to mix audio signals and CV signals in order to obtain complex modulations. Also it may serve as CV and audio attenuator.

Features:
3 inputs
Diode protection against overvoltage

Technical specification:
Mixer gain: 1
Power consumption +4mA, -4mA
Module width: 3HP
Module depth: 35mm

Notes: 4xSt.Mixer is 4 HP quad stereo mixer.

Right inputs are normalled to Left inputs for easy mono operation

Several 4xSt.Mixers can be chained together or with other HN stereo modules via sockets on the back side

DC coupled signal pass, thus can be used as CV mixer too

Dimensions
4 HP
35 mm deep

Current draw
65 mA +12V
50 mA -12V

Notes: Black Stereo Mixer is just what you need, if your setup has several nowadays gaining popularity modules with stereo inputs or outputs, like Black Hole DSP, Erica Fusion Delay, MI Clouds or some other. In order to save rack space, we designed compact mixer with lot of cool, performance oriented features.

In order to save rack space, we designed a compact mixer with a lot of cool, performance oriented features.

Check out also the Black Pre-fade Listen Expander that is a satellite module to Erica Synths Black Stereo Mixer!

Erica Black series are high-end modules with unique functionality. Only the highest quality components are used and all inputs and outputs are protected against undesired overvoltage. When designing the Black Series, we did not economise on the module width, we put design and usability first. Big knobs are assigned to functions that make difference in sound. Together the Erica Black series are a range of modules that make an entire synthesizer.

Notes: The Jumble Henge is a 16 input stereo spectral mixer with a unique patch-based mixing interface in a compact space. Each input has a carefully tuned resonant analog filter and a unique fixed pan value, providing each sound its own space within the mix. There is a Mix control to adjust the depth of the filtering and a clean external stereo input for chaining with another mixer or extra sound source. Jumble Henge is a space efficient solution for creating rich stereo mixes from a number of both mono and stereo sources.

INPUTS
Vertical and horizontal patch position determines a source's spectral and stereo placement in the mix respectively.

Aside from centred inputs, every input sits in its own unique pan position, helping to keep a separation between sounds but building a complete stereo image when combined.

The centre right inputs of the top two rows are normalised to the centre left inputs. - i.e if just a left input is patched it will be effectively panned center.

Towards the highs the panning becomes wider - as the human ear better pinpoints direction at higher frequencies, whereas the lows remain more centred for a tighter, more focused sound.

MIX CONTROL
Mix control for the overall depth of the filters applied to the inputs. Note: a slight volume increase occurs near the centre of the dial.

EXTERNAL INPUT
An additional clean stereo input pair for chaining with another mixer or additional source. Right input normalised to left input to accomodate mono sources.

OUTPUTS
Stereo mix output, the sum of all 16 inputs.

Jumble Henge was designed in collaboration with Worng Electronics and is based on the 'SoundStage'.

Technical Specifications

Supply: +12V 70mA / -12V 70mA

Size: 8HP

Depth: 38mm

Notes: Compact and simple four-input mixer module from Uncle Dieter. Linear pots make it suited to mixing CV signals but it can also handle audio. Mixed signal hard-wired to two sockets.

Supplier notes:
Module A-138n is a simple four channel mixer, which can be used with either control voltages or audio signals. Each of the four inputs has an attenuator available. The output is twice available (two sockets, hard-wired like a multiple).

HP : 4

Notes: The Stereo Mixer 1U provides a convenient way to combine your mono and stereo sources into a single stereo mix. There is level control over the first two channels and, using a rear connector, you can chain multiple Stereo Mixer 1U's together into a hidden 3rd stereo channel without using up channels on the front panel. The chain i/o connectors are fully compatible with the Mixup connectors so you are able to mix 1U and 3U mix chains together as needed.

The Stereo Mixer 1U is a versatile, expandable audio mixer for the Intellijel 1U format. It has two pairs of front panel inputs, each with its own level control, and a mixed output pair. For each input pair, the left channel is normalled to the right channel, for mono operation.

Using 3-pin Link connectors on the back panel, you can chain multiple Stereo Mix 1U's together in series, giving you the ability to mix together even more inputs, or to create sub-mixes for routing audio around larger systems. You can also these same connectors to patch Intellijel's Mixup and XY IO 1U modules to these back-panel chains, and you can connect them directly to the 14" audio jacks on an Intellijel Palette Case, a 7U case with 2nd-generation Audio Jacks Board, an Outs module, or a v2 Headphones 1U.

Stereo Mix 1U is designed specifically for audio (and not for CV mixing), it's AC-coupled, and uses audio-grade, logarithmic attenuators for a smooth, even response across the entire volume range.

Width: 16HP
Depth: 25mm
Power: 17mA @ +12V
23mA @ -12V

Notes: This is the version II of the original uVCA.

This module was adapted from a design by David G. Dixon

Notes: Module A-138 is a four channel mixer, which can be used with either control voltages or audio signals. Each of the four inputs has an attenuator, and there's a master attenuator, so that the mixer can be used at the end of the audio chain, i.e. it can be used to interface directly with an external mixer, amplifier, etc.

The A-138b has potentiometers with logarithmic response, so is especially suitable for audio signal mixing.

Notes: Mix up to four stereo channels in just 4hp, or chain multiple modules together to add channels. Inputs are normalled for mono operation. Simple, compact and high quality at a reasonable price.

Supplier's Notes:
4xSt.Mixer is 4 HP quad stereo mixer.

Right inputs are normalled to Left inputs for easy mono operation

Several 4xSt.Mixers can be chained together or with other HN stereo modules via sockets on the back side

65 mA +12V
50 mA -12V
35 mm deep

Notes: The XOH (miX Out Headphone) music synthesizer module is a stereo mixer, headphone amplifier and output interfacing module for your modular synthesizer. It consists of two stereo input channels with independent level controls, and two stereo outputs: one pair of independent line level left and right outputs at unity gain; and one TRS headphone or line level output with dedicated level control.

Notes: The compact and complete VCA. Filtering and mixing rolled into one powerful unit. The Dreadbox Eudemonia Filter is an analog wave generator processor. It provides accurate mixing capabilities and features a dual filter in series. The filters are a 24dB resonant Low Pass Filter and an 18dB non-resonant High Pass Filter - these allow you to shape your sound before sending to your output. In order to keep things in line, the exponential VCA has a peak indicator to help you reference your levels.

Power Consumption: 61mA @ +12V , 69mA @ -12V
61 mA +12V
69 mA -12V
35 mm deep
10HP

Notes: A-135-2 is a miniature version of the A-135-1. Behind a front panel with 8 HP only four linear VCAs (voltage controlled amplifiers) and a voltage controlled mixer based on the VCAs are available.

Controls, In/Outputs and Functions of each VCA:

Level (manual control of the VCA amplification), small rubberized knob (L1...L4)

Control voltage input with associated attenuator (CV1...CV4), for the full VCA control range about 0...+5V control voltage are required (attenuator fully clockwise), for higher control voltages the attenuator is used, the attenuators are without knobs, just plastic shafts with white marker

Signal Input

Signal Output

All inputs and outputs are DC coupled. Consequently the VCAs can be used to process both audio and control voltages (e.g. to control the level of LFOs or envelopes)

The signal input is not equipped with an attenuator. But the VCAs can process all signals up to 15Vpp / -7.5...+7.5V without clipping. In case of higher levels an external attenuator is required (e.g. A-183-1).

The available amplification range is 0...1, the maximal amplification is 1 (i.e. it "clips" and remains at 1 even if the control voltage goes beyond the value that corresponds to amplification 1)

Functions of the voltage controlled mixers:

two outputs ("Selected" and "All")

Selected output: the ouput if a VCA is removed from this sum signal when a plug is inserted into the corresponding VCA output.

All output: sum of all VCA outputs, regardless of inserted plugs into the VCA outputs

The maximal amplification is about 0.6 to avoid clipping at the mixer outputs (otherwise the outputs may distort with 15Vpp signals at each signal input and full amplifications)

Special functions of the voltage controlled mixer (selectable by internal jumpers)

Dual Stereo VCA: In this case the control unit of VCA1 (L1 + CV1) affects also VCA3 and the control unit of VCA2 (L2 + CV2) affects also VCA4. The control units of VCA3 (L3 + CV3) and VCA4 (L4 +CV4) are out of operation.

Quad VCA: In this case the control unit of VCA1 (L1 + CV1) affects all four VCAs. The control units of VCA2, VCA3 and VCA4 are out of operation. In this mode the module has the same function as module A-132-2. That's why module A-132-2 will be discontinued.

Normalling of the signal inputs: by means of internal jumpers signal input 1 can be normalled to signal input 2, signal input 2 to signal input 3 and signal input 3 to signal input In 4. That way the same input signal can be distributed to four different channels by means of control voltages (e.g. quadrophonic distribution of audio signals). Suitable control voltage sources are e.g. A-144 (Morphing Controller) or A-143-9 (Quadrature LFO).

Additional technical specification for each VCA (based on the specifications of the VCA circuits CEM3360/AS3360 used in the module):

Crosstalk between VCAs: typ. - 80dB

Signal attenuation at 0V CV: typ. -70dB

Total harmonic distortion: typ. 1%

Control voltage feedthrough: max. 15mV

Width: 8 HP / 40.3 mm
Depth: 45 mm (measured from the rear side of the front panel)
Current: +40mA (+12V) / -40mA (-12V)

Notes: The Listen Four is a four channel stereo mixer with line, modular, and headphone outputs. Two mono channels with Pan knobs and two stereo channels with dual inputs provide optimal compatibility with both stereo and mono signals. The Listen Four can be daisy-chained to other Listen modules to create a larger mixer with sub-mix outputs.

Notes: The Listen Four Quarters is a four channel stereo mixer with 1/4" (6.35mm) TRS balanced outputs and 1/8" (3.5mm) headphones output. Two mono channels with Pan knobs and two stereo channels with dual inputs provide optimal compatibility with both stereo and mono signals. The Listen Four Quarters can be daisy-chained to other Listen modules to create a larger mixer with sub-mix outputs.

Notes: The 'MEGA-TANG' is a 4-channel linear VCA and stereo mixer providing per input control over level, effect send, pan and muting. Designed for live use in mind with a simple & compact layout, the 'MEGA-TANG' builds on the clean and transparent sounding Tangle Quartet VCA by adding a stereo mix output, effect sends (mono send with a stereo return) which pair great with the MFX, manual panning, soft mute buttons with LED indicators and an expansion port for future expandability.

Individual VCA outputs are available which remove the channel from the main mix (useful for cueing and monitoring). All signals are Euro level and bar the effects return, DC coupled for CV use as well as audio.

Technical Specifications

Power: +12V 125ma -12V 125ma
Size: 16HP
Depth: 32mm
Attenuation: approx -70db

Notes: A characteristically unique take on mixing from Buchla, with six mono inputs and a built-in mic/guitar pre-amp. Each channel can be cued to a monitor mix, while the first and last channels also include voltage-controlled panning.

Supplier's Notes:
The Tiptop 207t is a modern reimagining of the classic Don Buchla 207 Mixer/Preamplifier from the 1970s 200 Series. This stereo mixer comes with a built-in preamp that allows you to boost external instruments and microphones, making it a versatile tool for any modular setup. The 207t also features a six-channel mixer with a variety of signal routing options, including the ability to route channels to the monitor and L&R signal outputs, with per-channel control over loudness and panning.

Each channel has a Mon switch that sends the channel's signal to the monitor outputs, which are always full-volume and summed to mono, making it useful for basic monitoring applications or rudimentary mixing. The Prog switch sends the signal to the L&R signal outputs, with loudness controlled by the Level Adjustment slider and panning determined by the Channel Assignment knobs. The first and sixth channels offer voltage control of panning; these channels are hard-panned when no CV is applied.

The preamp section features a 1/4" input and multiple gain settings, making it suitable for use with external line level instruments, electric guitars, or dynamic microphones. The continuous amplification control provides added flexibility for your audio needs. Finally, the Expansion In is a stereo input that sums to the left and right main outputs, which is great for chaining multiple 207t modules or adding another stereo source at the final output.

While the 207t's functionality may be simple, it is an essential part of any 200t system, serving as the glue that holds everything together. The Tiptop 207t is a fantastic mixer/preamp option that delivers quality sound and reliable performance.

Buchla 207t Features

Mixer/preamp module based on Don Buchla's original 207 design
Six-channel mixer with per-channel level control and panning
Voltage-controllable panning on channels 1 and 6
Manual panning on channels 2-4
Program switches can act as channel mutes for main outputs
Mon switches route signal (in mono) to Monitor output
Expansion input useful for stereo chaining and more
Re-designed preamp for high audio fidelity
Preamp suitable for use with external instruments, electric guitars, dynamic microphones, and more

Eurorack module
28hp wide

Notes: Fully redesigned from the original Cosmix, the Cosmix Pro is an eight-channel mixer intended to work nicely for performance as well as production. Suitable for line-level stereo signals as well as Eurorack levels.

Supplier's Notes:
A completely new design, with a lot of attention to sound quality, with a clean, low noise signal path, and lots of headroom.

It features the same amount of channels as the previous Cosmix, 4x mono in, and 2x stereo in.

There's one mono aux bus, and an additional true stereo AUX for all channels, with a dedicated mono and stereo return.

Each channel has a pan pot, a big push button for clickless muting, and a dedicated LED level meter to visualize channel output level.

The mono channels come with a handy low cut switch. (-3dB @80Hz / -6dB @ 45Hz)

The stereo channels have an optional +18dB gain, allowing you to easily mix in line level external gear.

The two stereo channels also have a CV input for voltage controlled panning.

There are connectors on the back for daisy chaining, or for connecting to future expanders/other mixer units.

High quality aluminium panels, available in black or silver.

The older model Cosmix is discontinued until further notice, since the parts for the drive circuit are unobtainium.

That's also the reason there is no dedicated drive circuitry in the new model.

Technical specs
22HP, 20mm deep.
+12v: 170mA, -12v 170mA

Notes: Quasar brings 3D spatial audio to the Eurorack world. It is a two-channel audio mixer that uses binaural algorithms. You can seamlessly move sounds around your head, dynamically change the angle, height and distance in real time.

** Includes 3mm screws, 16-Pin to 10-Pin eurorack power cable, USB cable for firmware updates **

Main functions
2 mono inputs
Stereo output (two single jacks + headphone stereo jack)
2 CV inputs
24Bit 48kHz inputs and outputs, 32Bit internal signal processing
Dynamic 3D positioning in three dimensions (height, angle, distance)
Room reverb can be applied for better localization
Internal LFOs with flexible routing
External CVs can be flexibly routed to all parameters, multiple destinations per CV, individual intensity
Different 3D transfer functions to choose from
Two large endless encoders with aluminum knobs, RGB LED rings for setting and displaying parameters
OLED display for navigation and to show which parameter the encoders are currently controlling
Flat menu structure, no deep dives neccessary
" User presets can be flexibly created and recalled
" Potentiometers for volume control of the three positions Quasar 1, Quasar 2 and Center

Quasar creates a 3D sound image by binaural audio processing. Two positions named Quasar 1 and Quasar 2 are available, which you can virtually place and move at any angle, height and distance around your head. Room reverb can be added as a further aid to distance perception. The audio signals at input 1 and input 2 can be flexibly routed to either or both positions via an internal matrix mixer. The coordinates of the positions can be set manually or be modulated by internal LFOs or external CVs. For example, you can have sounds orbiting around you, coming from above or below, front or back, and moving toward or away from you. Likewise, a centre position is available as a routing destination that leaves the signal without sonic processing to create a dry/wet mix.

Quasar features two CV inputs which can be flexibly routed to any target inside the module. In fact, each CV can have up to four different targets, which enables a very flexible design of auditory 3D-scenes.

Internal LFOs can be used to add dynamic movement and to create spectacular three-dimensional scenes. There are a variety of standard and advanced waveforms that can be routed to the position coordinates. LFOs can also be triggered and reset by external CVs.

Quasar can add some reverb to the signal. While not being a reverberation module in the first place, Quasar's reverb can improve distance estimation, but also be used to create impressing ambient stereo soundscapes.

All inputs also have digital high and low pass filters, so you can decide which frequency bands go to which position. However, in addition to Quasar 1 or Quasar 2, you can also route the audio to the center position. The center position takes the input signal and distributes it equally to the left and right ears without further processing. For example, you can route the low frequencies to the center position and have the higher frequencies distributed to the outer positions Quasar 1 and Quasar 2. That way, the bass stays centered and mono-compatibility is preserved.

As soon as a three-dimensional virtual scene has been created, it can be saved to the module's preset list. That way, scenes can be recalled at any time. Quasar also features some factory presets as a starting point and to show off the module's capabilities.

The module works best with headphones, as the algorithm basically mimics the shape of the head and the pinnae, which are responsible for our directional hearing. But even if you play the sound through speakers, you will hear a significant difference from classic panning.

As spatial hearing is a psychoacoustic effect that everybody perceives in a slightly different way, Quasar offers several transfer functions for different ear types to choose from. This way, the intensity of the 3D effect can be adjusted to personal needs and fits with the processed audio signal.
With its large aluminum knobs, LED rings, rubber potentiometers and mechanically solid components, Quasar is fun to use and invites creative work.

Notes: This is a 4 stereo channels expansion. Several of this modules can be added to get more stereo channels. Every channel features:
Stereo input (L works as mono in)
SEND A control (switchable PRE/POST, in PRE mode the signal is present regardless to the ON/OFF/CUE switch position and channel volume control)
SEND B control (post-fader)
PAN control (only affects the master bus)
VOLUME control (affects the master, cue and POST sends)
ON/OFF/CUE switch: ON- channel is routed to the master bus
OFF- channel is muted
CUE- channel is routed to the cue bus

15 mA +12V
15 mA -12V

Notes: By combining a mixer and four VCAs in a single module, Mix 3 manages to provide a unique combination of compact size and functionality in just 6 HP. High-end signal paths ensure extremely low noise and distortion, wide headroom and precise gain control, despite the small form factor.

Each of the three main channels has an exponential response, which is more natural for audio than linear, as it matches the human hearing. However, all signal paths are DC-coupled, so control voltage (CV) signals can be processed as well.

What truly sets Mix 3 apart from other compact mixing modules are the three CV inputs, providing voltage control over the signal levels. This even allows you to go beyond unity gain and reach up to +20 dB of amplification. Once a CV input is used, the corresponding channel knob becomes a CV attenuator.

When clipping, Mix 3 does so in a clean, symmetrical way. This yields a very pure overdriven sound, only containing odd harmonics, and allows the module to be used as a triple voltage controlled distortion.

Additional features include audio indicator LEDs, a fourth auxiliary input, voltage control over the output level and a line output jumper setting.

Notes: Endorphin.es Cockpit² is a 4-channel stereo mixer with side-chain ducking.

Key facts:

Increased headroom
Improved sound quality
The LEDs are blue/red instead of red/green (Daltonic friendly)
No TRRS jacks anymore
New aluminium knobs on the black module version

Power consumption:
240 mA +12V
75 mA -12V
0 mA 5V

Dimensions:
6 HP
38 mm deep

Notes: Module A-130-8 contains eight linear voltage controlled amplifiers (VCAs). Each VCA features a control voltage input (CV), a signal input (In) and a signal output (Out). In addition three mixers are included: the socket labelled "1-4" outputs the sum of the VCAs 1-4, the socket labelled "5-8" outputs the sum of the VCAs 5-8, the socket labelled "1-8" outputs the sum of all eight VCAs.

The signal inputs are able to process levels up to 10Vpp without clipping. Each CV input is equipped with a trimming potentiometer that is used to adjust the sensitivity of the CV input in question. In the factory the module is adjusted for the CV range 1...+5V but can be re-adjusted by the user for other control voltage ranges (e.g. 0...+10V).

The amplification range for each single VCA is 0...1. The signals of the sum outputs have a lower amplification to avoid distortion.

The VCAs and mixers are fully DC coupled, i.e. the module can be used for the processing of both audio and control voltage signals. The control voltage and signal inputs can be normalled by means of small solder pads (e.g. 1 > 2 > 3 > 4 and so on, or 1 > 5, 2 > 6, 3 > 7, 4 > 8 for the stereo application mentioned below).

Typical applications:

Any kind of VCA application (e.g. voltage controlled attenuation of audio or control voltage signals)
Two voltage controlled mixers with four channels each
Voltage controlled stereo mixer with four channels each, for this the control voltage inputs have to be correspondingly patched or internally normalled: CV1=CV5 / CV2=CV6 / CV3=CV7 / CV4=CV8
Voltage controlled mixer with eight channels
Add-on for the planned Joystick module A-174-4

Dimensions
6 HP
40 mm deep

Current Draw
50 mA +12V
50 mA -12V
0 mA 5V

Notes: Introducing a four independently buffered input mixer and a buffered output signal splitter, in one module!

Erica Synths Black Mixer/Splitter V2 is an advanced replacement for stackable patchcables.

Everyone who knows a bit more about electronics will point out that stackable patchcables are not a really wise choice for such sensitive things as musical instruments because they mechanically connect electrical signals that at best can cause undesired modulations or even damage the modules.

Erica Black series are high-end modules with unique functionality. Only the highest quality components are used and all inputs and outputs are protected against undesired overvoltage. When designing the Black Series, design and usability were prioritised first. Big knobs are assigned to functions that make difference in sound. Together the Erica Black series are a range of modules that make an entire synthesizer.

Technical specifications:

Input signal level: -10V - +10V
Power consumption: +25mA, -25mA
Module width: 4HP
Module depth: 25mm

Notes: The Control Voltage Processor from Verbos Electronics GmbH is a suite of control voltage processing possibilities divided into 3 sections in a slim 18HP package. The lower 2 sections are DC coupled mixers that allow mixing, inverting, offsetting, scaling, multiplying, dividing, crossfading or a combination of these functions. The top section is a voltage controlled slewing processor with independent control of Positive and Negative slew rate, with some unique tricks. The Positive and Negative slew, or Rise and Fall rates if you like, have reversing attenuators. The slopes can be blended from linear to RC curves (starting all slides fast and ending slow, like a proper "East Coast" Portamento) without a change in speed. It can be triggered like an AD envelope and has a Gate out that goes high when the CV out is below 100mV. Of course it can loop by patching the Gate out to the Trigger in. The Bounce control adds a unique flare of overshoot to CV changes, a bit like the effect of stopping a tape reel from turning and then letting it go. The combination of multiple voltage processors offers the user the functions of analogue computer.

Notes: Erica Synths Black Quad VCA2 is a versatile four channel voltage controlled amplifier and mixer module for use in complex modular systems. Each channel has linear/logarithmic response selector and signal level indicator LED. All outputs are sequentially mixed and CV inputs are normalled to each other, so you can use the module in various configurations. If no CV is applied, the Black Quad VCA2 performs as a signal mixer, and the 4th channel is DC coupled for controlling CV sources, as well.

Notes: 2xSAM is 4 HP Dual Stereo Attenuator-Mixer

Several 2xSAMs can be chained together or with other HN stereo modules via sockets on the back side.

2xSAM's total mix stereo output can be internally sent to the Isolator, PanMix Jr, 3xStereo Mixer, or can be received from OUT, PanMix, PanMix Jr, 3xStereo Mixer, or another 2xSAM.

If jumpers are not installed (placed on one pin only by default) the max gain is 1x. When the jumper is properly placed on both pins - the gain is 5x. There are four inputs thus four jumpers. Each jumper is relevant to its channel.

27 mA +12V
27 mA - 12V
35 mm Depth
4 HP wide

Notes: Unity is a dual unity mixer with two sets of three inputs. Its versatile normalling behaviour allows it to function as a six-to-one mixer, or two three-to-one mixers. Three modes of operation provide ideal behaviour for audio, control voltage, or both.

Averaging Mode allows the user to mix audio signals without losing their relative loudness. Unity Mode is great for mixing control signals in situations where you want to add vibrato to a sequence, or create a chaotic modulation source out of LFOs and envelopes. Split Mode sets each channel to a different mode, allowing for mixing CV on one channel and audio on the other. Unite your system with Unity.

Notes: 4ATTMIX offers four input channels which can be level controlled / attenuated by the corresponding knobs. The attenuated signals are sent to four outputs.

Additionally, each channel can be sent to an internal mixer by the switches beside the knobs. The mix signal is then sent to the mix output.

An additional switch selects the general operation mode for the mixer, for DC/CV signals or for audio signals.

Notes: 6xMIX is a six channel audio (AC coupled ) mixer, channels arranged in three groups with separate outputs having led indicators. Each group can be switched to mix with the subsequent group, allowing for 2-2-2, 4-2, 6 mix configurations. The module can also be used to mix two stereo channels plus separate group of two mono channels. Perfect audio performance with the lowest noise and distortion amounts.

The inner knobs control the A inputs, while the outer knobs control the B inputs.

50 mA +12V
50 mA -12V
35 mm Depth
6 HP wide

Notes: The QSC is a Quad Stereo Channel module for the CGM Creative Mixer.

The Quad Stereo Channel consists of four stereo channels, whit a design based on the Channel module that, however, also borrows some concepts from the Group and the Master modules.

The color scheme reflects the same routing of the modules: VCA (red), two effect sends (yellow and green), pan (pink), auxiliary input (purple), and main faders (white).

This peculiar feature set allows you to use the QSC within a standard CGM configuration, or as a standalone stereo mixer with mono effect sends.

HP : 18

Notes: Junction requires a +12V / -12v power supply with a 2x5 pin ribbon cable (included). The red line of the ribbon cable must be aligned with the -12V marking next to the module's power header and on your case's power distribution board. Junction draws 23mA from the +12 rail and 20mA from the -12 rail. Please ensure you have
enough power available before installing.

About Junction

Junction is a compact, 4 channel attenuverter, cascading mixer and multiple designed to fine tune the control voltages in your rack to the perfect range for their destinations. Junction can be used as a source of fixed voltage, offset another voltage, or mix multiple voltages together to create complex and dynamic modulation.

Features

Each channel on Junction has a knob (1) that acts as a manual control for the attenuverter. Center position (12 o clock) is 0V. The first channel input (2) is normalized to +5V when no cable is plugged into it.

A buffered copy of the input signal of the first channel is present on all of the other inputs from from the first (2) to the last (8). This duplication is "cascading" as shown by the arrow graphics on the panel - if a cable is patched into any input, it "breaks" the cascading multiple - all unpatched inputs carry the signal present at the uppermost patched input (or +5V if no inputs are patched). For example, if a signal is patched into the second channel's input (4) the third (6) and fourth (8) channel inputs would carry a copy of the second channel's input instead of the first channel input.

Junction's channels are mixed on the outputs. The output mixer is also "cascading" - when a cable is patched into an output, it carries a mix of it's own output and all unpatched channel outputs above it. For example, if only the last channel output (9) is patched, this output will carry a mix of all of the outputs. Patching the first channel output (3) would remove it from this mix.

Even though Junction's inputs cascade and outputs mix, Junction's output will clip at the Eurorack power rail voltages of +12 and -12V. It is not possible to output a voltage outside of this range, regardless of the signals patched into Junction.

23mA +12 / 20mA -12 4 HP / 25mm
Deep Reverse Power Protection

Notes: Very nicely designed mixer module. Four-channel stereo design with CV control of balance and volume, aux sends and extensive chaining options, including the optional Bohumin expander module.

Supplier's Notes:
Ostrawa is a full stereo four-channel voltage controlled mixer featuring a stereo mixing bus, one stereo auxiliary send per channel (switchable between pre and post VCA) with stereo returns, clickless muting, individual level meters, and a super-clean and DC-coupled signal path designed with high-quality VCA and opamp chips.

Xaoc Devices have carefully crafted Ostrawa's voltage control response to achieve what we believe to be the optimal user experience found in a Eurorack mixer. The design features an elaborate control circuit that combines the internal voltages generated by the panel potentiometers with external CV over volume and stereo balance. The result is a natural attenuator response that constrains VCA gain to a usable range while minimizing distortion.

Ostrawa is a sister module to Xaoc devices Praga. It features a very similar response characteristics and similar layout of controls with some functional differences resulting from stereo inputs and limited panel space. Multiple Ostrawa and Praga units may be chained for a custom configurable mixing system. An expander called Bohumin is also available.

Technical details

Eurorack synth compatible
20hp, skiff friendly
Current draw: +180mA/-150mA
Reverse power protection

Notes: Looking Glass is an 5 x 5 active patchbay/matrix mixer/switcher for both audio and control voltages. It features:

5 inputs (1 through to 5), each with attenuators
5 inverted outputs (A through to E) which are 180o out of phase with the inputs
5 normal outputs (A through to E) which are in phase with the inputs
A switch matrix of 25 push on/push off switches and LED status indicators
Any of the 5 inputs can be patched to any of the 5 outputs simply by pressing the corresponding switches. A patched signal will appear at both normal and inverted outputs simultaneously.

A single input can be patched to a single output. A single input can be patched to multiple outputs. Multiple inputs can be patched to a single output. Multiple inputs can be patched to multiple outputs.

The attenuators allow you to reduce the volume of an incoming signal. If you add many inputs to one output you will of course cause clipping (which may or may not be desirable!), the attenuators are your on-board way around this.

Specifications:

12V draw: 30mA
5V draw: 0mA
-12V draw: 31mA
Depth: 35mm
Width: 18HP

Notes: The VCA Matrix from 4ms is a playable 4x4 matrix of 16 VCAs.

Four CV or audio inputs can be routed in any amount/combination to four outputs, using the 16 CV control jacks, Level knobs, and Mute buttons.

Notes: Oof. Frap casually serve up one of the best filters we've seen in a long time. Quad multimode circuits with saturation and feedback give you extensive routing options. Delicious.

Supplier's Notes:
cunsa /'cu?nsa/ s.f. [dialect of Modena of uncertain etymology, probably from a Latin *comptiare, derived from comptus, participle of comere 'organize,' 'decorate'] i curing, seasoning (of foods), tanning (of leathers).

Seasoning is crucial for cooking. It is a process that enhances the flavors, glues the ingredients together, and even adds some unexpected kick.

From a gentle refining touch to a shovelful of spice, CUNSA is the perfect seasoning tool for your patches. It can sweeten a sour lead or beef up an insipid bass line, and anything in between.

And, just like a good oil, you can even taste it by itself!

CUNSA is a quadruple analog pingable multimode resonant filter, saturator, mixer, and oscillator.

It is Frap Tools' sound seasoning tool: it can gently even a patch, applying a final touch, or it can set it on fire with a ridiculous amount of spice. It's up to you and your cooking style!

It consists of four multimode resonant filters with a custom saturation and feedback control that you can use independently or in various combinations and roles thanks to a series of seminormalizations.

Four Analogue Resonant Multimode Filters

CUNSA features four state-variable filters that can be used independently or linked and mixed. Each filter provides three behaviors simultaneously: lowpass, bandpass, and highpass. Each behavior has a 12 dB/oct slope, except for the lowpass, which can be either 12 or 24 dB/oct.

Unique 'Character' Circuit for Feedback and Distortion

CUNSA handles feedback and gain staging with extreme control and versatility. Besides the usual Q control that emphasizes the cutoff frequency, the Character circuit defines the amount of soft clipping when the filter overloads. High clipping guarantees a controlled behavior with fat tone and pure resonance, while low or no clipping lets the signal saturate the filter stages and make it scream.

V/oct Tracking and Quadruple Oscillator

Each filter responds to the V/oct signal with excellent tracking. It is thus possible to move the cutoff frequency along with the main melody or make CUNSA resonate with no input and transform it into a multiple oscillator. The V/oct inputs are seminormalled so you can control more filters with the same CV. Easy chords stabs!

Ping and Ring

CUNSA is ideal for percussive and organic tones. The Ping circuit offers a behavior similar to the BRENSO but AC-coupled. Instead of shooting the frequency to the moon with any trig, CUNSA gently responds to different incoming gates with a selectable decay curve. The Ping circuit can thus create natural decay sounds when fed with trigs or smoother envelopes with any other voltage, like a linear integrator with a custom decay.

Besides this, you can also feed the filter's audio input with trigs and make it ring at high Q settings.

Linked or Individual Filtering

The four filters can work independently or arranged in groups through seminormalled inputs and sum outputs. CUNSA can thus be a 4×1, 2×2, or a massive 1×4 filter. Even odd configurations are possible, like 1+2+1 or 3+1. Mono, stereo, or quadraphonic audio is at your fingertips.

Filter and Combo Behaviour

When the filter behavior is set to COMBINED, every control of the cutoff frequency also affects the input VCA, reducing the signal amplitude and saturation as it approaches the lowest range. It can make organic decays with the ping circuit or tame the low range at high Q and Character settings.

Four Seminormalizations for Group Use

Four inputs have a cascaded seminormalization: audio inputs, VCA CV, V/oct, and Ping. Every signal patched to a filter will thus feed also those at its right, making simultaneous use even simpler. To remove a seminormalization, simply patch a dummy cable to the corresponding input.

Analog Mixing Stage and Group Outputs

Every filter output can be routed to an analogue mix bus that sums the four filters and outputs them in three combinations: all, 1+2, and 3+4. These outputs allow for versatile audio processing. Just like we did with FUMANA, we added a gentle shelving EQ for the higher frequencies of the All output to provide additional timbral variety.

CV Inputs with Attenuators

Besides the seminormalled inputs, every filter features additional CV inputs for cutoff frequency, Q, and Character, each with a dedicated attenuverter.

Notes: The 'Stereo Sum' is a unity gain summing mixer that features four stereo input pairs summed as pairs to two independent mix outs or all as a single combined mix. It is a useful utility for efficiently combining outputs of multiple stereo sources, such as the MEGA-TANG and Jumble Henge mixers or multiple MFX returns. The inputs accept stereo or mono signals (via normalisation) which can be audio or CV (module is DC coupled) and the top mixer's outputs are normalised to the bottom mixer section meaning if the upper output is left unpatched the two upper inputs will be added to the lower output.

Stereo input pairs

Stereo inputs. Can be used with audio or CV (inputs are DC coupled).

Left ins normalised to Right for mono signals.

Stereo mix output 1

Stereo mix output. Normalised to bottom mixer section if ouput is left unpatched.

Stereo input pairs

Stereo inputs. Can be used with audio or CV (inputs are DC coupled).
Left ins normalised to Right for mono signals.

Stereo mix output 2

Final stereo mix output.

Technical specifications

Power: +12V 8ma / -12V 8ma
Size: 4HP
Depth: 32mm