Behringer MIX-SEQUENCER MODULE 1050 Instruction Manual

1. Introduction

The Behringer MIX-SEQUENCER MODULE 1050 is an authentic reproduction of the classic 2500 Series sequential mixer module from the 1970s. This module is designed to provide sequential switching for rapid selection of waveforms and signals within a conventional audio mixer format. It features dual 4-input mixers with electronically gated inputs and an eight-step counter and clock, making it an invaluable tool for complex sound design and signal routing in modular synthesizer setups.

Key features include:

• Classic 1050 sequential mixer module from the '70s.
• Authentic reproduction of the circuitry from the "2500" Series.
• Features sequential switching for rapid selection of waveforms and signals.
• Dual 4-input mixers with electronically gated inputs and eight-step counter and clock.
• Each of the 8 audio inputs has its own attenuator and each dual output has a master gain control.

2. Product Overview

Front Panel Controls and Connectors

The front panel of the MIX-SEQUENCER MODULE 1050 is intuitively laid out for ease of use within a modular system. It features eight input channels, each with an attenuator knob and a corresponding gate button and LED indicator, along with controls for pulse generation, external gating, and counter functions.

Figure 2.1: Front view of the Behringer MIX-SEQUENCER MODULE 1050, showing all controls and input/output jacks. The module features eight input channels (IN 1-8), each with an attenuator knob (yellow/green) and a gate button (white square) with an associated red LED. On the right, controls for Level A, Level B, Pulse Gen, Manual Advance, Pulse Rate Counter, and Counter are visible, along with EXT GATE ENABLE and EXT ADV jacks, and dual outputs OUT A and OUT B.

Figure 2.2: Angled view of the Behringer MIX-SEQUENCER MODULE 1050, highlighting its compact form factor and the arrangement of knobs and buttons. This perspective clearly shows the depth of the module and how it would sit within a Eurorack case.

Controls and Indicators:

• IN 1-8 Jacks: Audio or CV inputs for each of the eight channels.
• Attenuator Knobs (Yellow/Green): Adjust the input level for each channel.
• Gate Buttons (White Squares): Manually activate or gate each channel.
• Gate LEDs (Red): Indicate when a channel is active or gated.
• LEVEL A / LEVEL B Knobs: Master gain controls for the dual outputs.
• PULSE GEN Switch: Activates the internal pulse generator.
• MANUAL ADVANCE Button: Manually advances the sequencer step.
• PULSE RATE COUNTER Knob: Adjusts the speed of the internal clock.
• COUNTER Knob: Selects the number of active steps in the sequence (1-8).
• EXT GATE ENABLE Switch: Enables external gating control.
• EXT ADV Jack: External input for advancing the sequencer.
• OUT A / OUT B Jacks: Dual audio/CV outputs for the mixed signals.

3. Setup

3.1 Unpacking

Carefully remove the MIX-SEQUENCER MODULE 1050 from its packaging. Retain all packaging materials for future transport or storage. Inspect the module for any signs of damage during transit. If damage is found, contact your dealer immediately.

3.2 Module Installation

The MIX-SEQUENCER MODULE 1050 is designed for installation in a standard Eurorack case. Ensure your Eurorack case has sufficient power supply capacity and available rack space (HP) for the module. Refer to your Eurorack case's manual for specific installation instructions.

1. Turn off and unplug your Eurorack case's power supply.
2. Locate an available space in your Eurorack case.
3. Connect the ribbon cable from your Eurorack power supply to the 12-way 0.1 box header on the back of the MIX-SEQUENCER MODULE 1050. Ensure the red stripe on the ribbon cable aligns with the -12V pin on both the module and the power supply bus board. Incorrect connection can damage the module.
4. Carefully align the module with the rail screws and secure it using the provided screws. Do not overtighten.

3.3 Initial Connections

Before powering on, ensure all necessary audio and control voltage (CV) connections are made. Use 3.5 mm TS jacks for all inputs and outputs.

• Connect your audio or CV sources to the IN 1-8 jacks.
• Connect the OUT A and OUT B jacks to your mixer, audio interface, or other modules for further processing.
• If using an external clock or advance signal, connect it to the EXT ADV jack.

4. Operating Instructions

4.1 Basic Operation

The MIX-SEQUENCER MODULE 1050 can operate as a standard mixer or as a sequential mixer. In its simplest form, you can use the LEVEL A and LEVEL B knobs to control the overall output level of the two 4-input mixers.

4.2 Using the Sequential Mixer

The core functionality of the 1050 is its sequential mixing capability. This allows you to step through the eight input channels, activating them one by one or in a defined sequence.

1. Set the Counter: Use the COUNTER knob to select the number of steps in your sequence (1 to 8). For example, setting it to '4' will cycle through inputs 1, 2, 3, and 4.
2. Internal Clock: To use the internal clock, ensure the PULSE GEN switch is engaged. Adjust the PULSE RATE COUNTER knob to control the speed at which the sequencer advances through the steps. The red LEDs next to the gate buttons will illuminate to indicate the currently active channel.
3. Manual Advance: Press the MANUAL ADVANCE button to manually step through the sequence. This is useful for precise control or for setting a specific starting point.
4. External Advance: Connect an external clock or trigger signal to the EXT ADV jack. This allows synchronization with other modules or external sequencers.
5. Input Attenuation: For each active channel, use its dedicated attenuator knob (yellow/green) to adjust the level of the signal being mixed into the output.
6. Gating Inputs: The white square buttons next to each input can be used to manually gate (activate/deactivate) an input. When a channel is gated, its red LED will light up.

4.3 Dual Mixer Functionality

The module effectively functions as two independent 4-input mixers (IN 1-4 to OUT A, and IN 5-8 to OUT B) when not in sequential mode or when specific channels are gated. The LEVEL A and LEVEL B knobs control the master output level for their respective mixer sections.

5. Maintenance

5.1 Cleaning

To clean the module, use a soft, dry cloth. For stubborn dirt, a slightly damp cloth with a mild, non-abrasive cleaner can be used, but ensure no liquid enters the module. Do not use solvents, alcohol, or abrasive cleaners, as these can damage the finish and components.

5.2 Storage

When not in use for extended periods, store the module in a cool, dry place, away from direct sunlight and extreme temperatures. If possible, keep it in its original packaging or a protective case to prevent dust accumulation and physical damage.

6. Troubleshooting

This section addresses common issues you might encounter with your MIX-SEQUENCER MODULE 1050.

7. Specifications

8. Warranty and Support

For detailed warranty information and technical support, please refer to the official Behringer website or contact your local Behringer distributor. Keep your proof of purchase for any warranty claims.