This module is now discontinued.

It is replaced by G


43 mm deep

80 mA +12V   –   75 mA -12V


G – Group

The group is a stereo module that blends the signals coming from the channels linked to it (up to eight) and takes care of their signal routing.

The group “puts into practice” all the information defined by the controls of the channels: volume, effect send volume, stereo panning. In smaller setups, you can use it without a master module, using its local outputs as your system’s stereo outs.

It consists of three sections: the amplitude controls (white), and the two effect sends and returns (yellow and green).

Master Family Comparison

Local output



Local output sources

Post-fader local mix/FX returns

Post-fader local mix/FX returns

Local output source selector

Jumpers on the PCB

Mechanical switch on the front panel

FX send/return circuits



FX send



FX return



CV over FX return




Mechanical latching

Electronic latching

Safe solo

Mechanical latching

Mechanical switch


Mechanical latching

Electronic latching

Fader knob

⌀ 20 mm

⌀ 12 mm

Mono Send and Voltage-Controlled Stereo FX Return

The group has two independent monophonic outputs and stereo inputs to create effect send/returns. (The mono output signal is the sum of all the channels’ send levels.) A CV over the stereo return level allows you to automate the effect section, like for gated reverbs, but also to use the stereo return as an auxiliary stereo channel.

Assignable Stereo Outputs (Unbal? Pseudobal? Chedubal?)

Two outputs (left and right) provide either the local sum of all the channels connected to the group and their effect or just the wet sounds (for further parallel processing). A jumper on the back selects the behavior.

Mute Button

The mute button allows you to remove a group from the master sum with a click. The mute doesn’t affect the local outputs: in smaller systems, where a group is the output module, it prevents accidental muting; in larger setups, it keeps the local outputs active for creative parallel processing.

Safe Solo Switch

The switch lets you solo a “scene” of prepared channels set up through their solo-in-place buttons or switches. It can be seen as a mute group function that allows you to mute all the channels outside the solo scene with a click.

PFL Button

The PFL button routes the group to the master’s PFL section, allowing you to pre-listen the whole group when muted or with the fader all the way down.


Two peak LEDs show when the group is clipping. However, don’t be shy! You can clip the group on purpose and enhance your sound, either with a creamy saturation or a significant distortion.

Connecting Groups to Channels and Master

See the Link System section.


Our modules are packed with high-quality components that demand a proper power supply and can get sensibly warm.

That is its normal temperature and we can guarantee their performance.

You always need at least one group if you plan to incorporate a master module in your setup. It is not possible to connect any channel module directly to a master module.

The CGM is designed to let you connect up to eight channels (C or QSC) to one group (G), but there is no way of connecting the same channels to two or more groups.

Yes, to take advantage of the Master module’s functions (PFL, headphones, final gain stage), you need at least one group.

We designed the group (G) module together with the classic mono channel (C), which is 6HP wide. After the QSC release, we developed a new Link System with wider plugs that allow you to connect more QSCs in a row.

If you need to connect more QSCs, check your local shop for cable availability!

If you just need to connect a QSC, the classic group-to-channel cable works great, too.

If you experience an abnormal panning on the CGM, check your case’s power supply and your system’s overall power consumption. We experienced that the CGM system sometimes has trouble working in a system close to its maximum Ampère output. An unbalanced power supply may cause the audio to be louder on one channel than on the other.

Try staying below 80% of the total amperage or switch to a more powerful PSU to solve this issue.

Yes! We opened our online store in October 2022. Check out the full catalog!

In Europe, we sell exclusively through our distributor: we do not have access to the individual shops’ orders or stocks.

In the rest of the world, we sell directly to the shops, but even in that case, there’s no way for us to know whether the modules that we’re restocking are sold, available, or reserved for another customer.

We restock every module at least once over a year: we focus on a module’s batch at a time, then we move on to the next one, and so on.

If you want an estimated delivery time for a specific module, drop us a line! We’ll be happy to answer you.

The Mute button closes the first VCA of the channel, thus preventing the sound from being routed through all the other VCAs (FX sends, pan, main fader).

The Solo in Place button isolates some channels and mutes the others. However, the mute function it performs is different since it affects the channel after the fader: the sound will still be routed to any pre-fader VCA such as Direct Output and FX Sends (when set to Pre-Fader Mode).

In other words, the Mute button works pre-fader, while the Solo in Place works post-fader.