AM8131 Audio Mixer

Description This Eurorack module is a replica of the Roland 131 module from the System 100M of 1978. It is a four channel AC coupled mixer intended for mixing 10V ptp audio signals into a stereo outputs. The mixer can be used as a final stage before an audiom interface and DAW or as an interim mixer within a Eurorack system.

EuroRack Module:  16HP wide
User Manual:  Download PDF
Project Notes:  Download PDF

The AM8131 has four AC coupled inputs at the top of the module which are mixed using 30mm level potentiometers. High quality rotary potentiometers are used for channel panning and the overall master volume. The sliders have subtle green or red LED's and the rotary pots have Roland TR808 style control knobs.

There are three 3.5mm jack sockets at the base of the module for the stereo and mono outputs. All outputs have green LED's to monitor the level of the signal. On the rear of the PCB there are three jumpers that set whether the ouputs are at normal Eurorack level or attenuated for sending to external ausio equipment.

There are seven jack sockets;

• Channel 1 - 4 Inputs
• Stereo Left & Right Outputs
• Mono Output

The module comes with a set of M3 mounting screws and washers, and a standard Doepfer power cable.

PRODUCT STATUS: PRODUCTION