Behringer A800

Behringer A800 Power Amplifier User Manual

Model: A800 | Brand: Behringer

Introduction

This user manual provides comprehensive instructions for the Behringer A800 Power Amplifier, a professional 800-watt reference class power amplifier designed for studio and live sound applications. It covers setup, operation, maintenance, and troubleshooting to ensure optimal performance and longevity of your device.

What's in the Box

  • Behringer A800 Power Amplifier
  • Power Cable
  • User Manual (this document)

Setup

Before connecting your Behringer A800, ensure all audio equipment is powered off. Proper setup is crucial for safe and effective operation.

Front Panel Overview

Front view of the Behringer A800 Power Amplifier, showing two large volume knobs, one for Channel A and one for Channel B, and a central LED metering display.

Figure 1: Front Panel of Behringer A800 Power Amplifier

The Behringer A800 Power Amplifier features a clean front panel design. On the left is the volume control for Channel A, and on the right is the volume control for Channel B. In the center, an illuminated LED display provides visual feedback on signal levels, including protection, clip, and output indicators for both channels. The model name 'REFERENCE AMPLIFIER A800' is clearly visible below the display.

Connections

  1. Power Connection: Connect the supplied power cable to the amplifier's AC inlet and then to a suitable power outlet. Ensure the amplifier's power switch is in the OFF position before connecting.
  2. Input Connections: The A800 supports various input options. Connect your audio source (e.g., mixer, audio interface) to the amplifier's input jacks using appropriate cables (XLR or TRS).
  3. Output Connections: Connect your passive speakers to the amplifier's output terminals. Ensure correct polarity (+ to + and - to -) for each speaker. The A800 supports both stereo and bridged mono operation. Refer to the rear panel diagram (not shown in image, but implied) for specific output configurations.
  4. Grounding: For optimal performance and to minimize hum, ensure all connected equipment is properly grounded.

Operating Instructions

Once properly set up, the Behringer A800 is ready for operation. Follow these guidelines for safe and effective use.

  • Power On/Off: After all connections are made, switch on your audio source first, then power on the A800. When powering down, switch off the A800 first, then your audio source.
  • Volume Control: Use the dedicated volume knobs for Channel A and Channel B to adjust the output level. Start with the volume at its minimum setting and gradually increase to the desired listening level.
  • LED Metering: The central LED display provides real-time visual feedback on signal levels. Green LEDs indicate signal presence, while red LEDs (CLIP) indicate signal clipping, which should be avoided to prevent distortion and potential speaker damage. The PROT LED indicates protection mode.
  • Stereo and Bridged Mono Operation: The A800 can operate in stereo mode (two independent channels) or bridged mono mode (combining both channels for higher power output to a single speaker). Consult the rear panel markings and the full technical specifications for details on switching modes.
  • Overload Protection: The amplifier features built-in overload protection circuitry to safeguard itself and connected speakers from excessive signal levels.
  • Convection Cooling: The A800 utilizes convection cooling, meaning it does not have internal fans. Ensure adequate airflow around the unit to prevent overheating.

Maintenance

Regular maintenance helps ensure the longevity and optimal performance of your Behringer A800 Power Amplifier.

  • Cleaning: Disconnect the amplifier from power before cleaning. Use a soft, dry cloth to wipe down the exterior. Avoid using abrasive cleaners, solvents, or waxes, as they can damage the finish.
  • Ventilation: Ensure that the ventilation openings on the amplifier are not blocked. As the A800 uses convection cooling, proper airflow is essential to dissipate heat. Do not place the unit in an enclosed space without adequate ventilation.
  • Storage: If storing the amplifier for an extended period, keep it in a cool, dry place, away from direct sunlight and extreme temperatures.
  • Cable Inspection: Periodically inspect all audio and power cables for any signs of wear or damage. Replace damaged cables immediately.

Troubleshooting

If you encounter issues with your Behringer A800 Power Amplifier, refer to the following common problems and solutions.

ProblemPossible CauseSolution
No sound output
  • Power cable disconnected
  • Speakers not connected or faulty
  • Input source not sending signal
  • Volume knobs set to minimum
  • Amplifier in protection mode (PROT LED lit)
  • Check power connection and outlet.
  • Verify speaker connections and test speakers with another amplifier if possible.
  • Ensure audio source is on and sending a signal.
  • Increase volume gradually.
  • Disconnect speakers and power cycle the amplifier. If PROT LED remains, contact support.
Distorted or unclear sound
  • Input signal too high (clipping)
  • Faulty cables
  • Improper speaker impedance match
  • Reduce input signal level or amplifier volume until CLIP LED is no longer active.
  • Test with different cables.
  • Ensure speaker impedance is compatible with the amplifier's output capabilities.
Hum or buzzing noise
  • Ground loop issue
  • Interference from other electronic devices
  • Faulty input cables
  • Ensure all equipment is connected to the same electrical circuit or use a ground loop isolator.
  • Move the amplifier away from power supplies, transformers, or other noisy electronics.
  • Try different input cables, especially balanced XLR cables if available.
Amplifier gets hot
  • Insufficient ventilation
  • Operating at very high volumes for extended periods
  • Ensure adequate space around the amplifier for airflow. Do not stack other equipment directly on top.
  • Reduce volume or allow the unit to cool down.

Specifications

FeatureDetail
BrandBehringer
ModelA800
Output Power800 Watts
Number of Channels2
Item Dimensions (L x W x H)23.05 x 10.65 x 6.25 inches
Item Weight8.8 pounds
Voltage24 Volts (DC)
Mounting TypeSurface Mount
UPC653341317834
First Available DateJanuary 18, 2019

Warranty and Support

Behringer products are manufactured to high quality standards. For information regarding warranty coverage and terms, please refer to the warranty card included with your product or visit the official Behringer website.

For technical support, service, or parts, please contact Behringer customer service. Contact information can typically be found on the Behringer website or in the product packaging.

Online Resources: For the most up-to-date information, FAQs, and additional resources, please visit the official Behringer website: www.behringer.com

© 2024 Behringer. All rights reserved. Specifications are subject to change without notice.

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