Frap M 2020s

Module has minor rack rash but otherwise is flawless. Works perfectly.

Charging and connection cable both included.

This item is no longer manufactured new.

You need other Frap Tools CGM modules for this to function. Please learn more at

The Master module is the last step in a CGM setup, and its main purpose is delivering the audio of the Eurorack system to the outside world.

It consists of three sections: the amplitude control (white), the Headphones/PFL section (blue), and the Auxiliary input (purple).

3.5 mm TRS Pseudo-Balanced Stereo Outputs

Connect two 3.5 mm TS cables to use the outputs as standard unbalanced stereo outputs. If your destination is a balanced system, you can connect two TRS cables and take advantage of the pseudo-balancing, where the ground is connected to both the ring and the sleeve.

Stereo Headphone Output with Pre-Fader Listening

A dedicated fader allows you to monitor the headphones output separately from the master fader. In addition, a crossfader blends the master sum with the PFL section, where you can hear the channels and group set to pre-fader listening.

Auxiliary 3.5 mm Stereo Input

If you need to patch an additional stereo source to your CGM, the auxiliary input has you covered. It features a volume knob and a PFL switch that allows you to pre-listen to its input.