Behringer AUTOCOM PRO-XL MDX1600 User Manual

1. Introduction

This manual provides comprehensive instructions for the operation, setup, and maintenance of the Behringer AUTOCOM PRO-XL MDX1600. The MDX1600 is a professional-grade 2-channel expander/gate/compressor/peak limiter designed to enhance audio signals in various applications, including studio recording, live sound, and broadcast.

It integrates advanced dynamic processing features such as a dynamic enhancer, de-esser, and low contour filter, offering precise control over your audio dynamics.

2. Key Features

• Switchable IKA (Interactive Knee Adaptation) program-adaptive compression circuitry, combining advantages of hard-knee and soft-knee characteristics.
• Adjustable Dynamic Enhancer with level meter for brilliant, lively audio even with heavy compression.
• IGC (Interactive Gain Control) peak limiting circuitry, combining clipper and program limiter for reliable and inaudible protection against signal peaks.
• Switchable De-esser to remove excessive sibilance from vocal tracks.
• IRC (Interactive Ratio Control) expander/gate circuitry for virtually inaudible noise suppression.
• Automatically or manually adjustable attack and release times.
• Switchable Low contour filter to prevent "pumping" due to low-frequency dominated compression.
• Stereo couple function with independent output level settings.
• Switchable side chain input with monitor function.
• Separate 12-segment LED meters for input/output levels and gain reduction.
• Dedicated "traffic light" Threshold and Enhancer level displays.
• Servo-balanced inputs and outputs with 1/4" TRS and gold-plated XLR connectors.
• Ultra low-noise 4580 operational amplifiers and state-of-the-art VCAs.

3. Setup and Connections

Before connecting the MDX1600, ensure all audio equipment is powered off to prevent damage. The unit features both XLR and 1/4" TRS connectors for inputs and outputs, providing flexible connectivity options.

3.1 Front Panel Overview

The front panel provides access to all control parameters for both channels, including Expander/Gate, Compressor/Limiter, Dynamic Enhancer, and Peak Limiter sections. Each section has dedicated knobs and switches for precise adjustment. LED meters display input/output levels and gain reduction.

3.2 Rear Panel Connections

The rear panel houses the audio input and output connectors (XLR and 1/4" TRS), sidechain send and return jacks for external processing, and the AC power input. Ensure proper cable connections for balanced audio signals to minimize noise.

3.3 Basic Audio Connection

1. Connect the audio source (e.g., mixer output, microphone preamplifier) to the INPUTS (XLR or 1/4" TRS) on the rear panel of the MDX1600.
2. Connect the OUTPUTS (XLR or 1/4" TRS) of the MDX1600 to the input of your next audio device (e.g., power amplifier, recording interface).
3. For stereo operation, ensure both channels are connected and the "STEREO COUPLE" function is engaged on the front panel.
4. Connect the power cable to the AC inlet and then to a suitable power outlet.

4. Operating the MDX1600

The MDX1600 offers a wide range of dynamic processing capabilities. Understanding each section is key to achieving desired audio results.

4.1 Expander/Gate Section

This section is used to suppress unwanted noise and control signal dynamics. The THRESHOLD knob sets the level below which the gate will close. The RELEASE knob controls how quickly the gate opens after the signal drops below the threshold. The RATIO knob adjusts the amount of expansion.

4.2 Compressor/Limiter Section

The compressor reduces the dynamic range of a signal. The THRESHOLD knob determines the level at which compression begins. The RATIO knob sets the amount of compression. ATTACK and RELEASE knobs control how quickly the compressor reacts to signal changes. The OUTPUT knob adjusts the overall output level.

The IKA (Interactive Knee Adaptation) switch provides a smooth transition between uncompressed and compressed signals, offering a more natural sound.

4.3 Dynamic Enhancer and De-esser

The DYNAMIC ENHANCER restores high frequencies lost during heavy compression, adding brilliance and clarity to the audio. The DE-ESSER specifically targets and reduces harsh sibilant sounds (e.g., "s" and "sh" sounds) in vocals.

4.4 Peak Limiter

The peak limiter prevents signal peaks from exceeding a set maximum level, protecting subsequent equipment from overload and preventing digital clipping. The LEVEL knob sets the maximum output level.

5. Maintenance

The Behringer MDX1600 is designed for reliable operation with minimal maintenance. Follow these guidelines to ensure longevity:

• Cleaning: Use a soft, dry cloth to clean the exterior. Avoid abrasive cleaners or solvents.
• Ventilation: Ensure adequate airflow around the unit, especially if rack-mounted, to prevent overheating.
• Storage: Store the unit in a cool, dry environment away from direct sunlight and extreme temperatures.
• Power: Always disconnect the power cable before cleaning or moving the unit.

6. Troubleshooting

7. Technical Specifications

8. Warranty and Support

For detailed warranty information and technical support, please refer to the official Behringer website or contact their customer service. Keep your purchase receipt as proof of purchase for warranty claims.

Online Support: www.behringer.com/support