The Allen & Heath GL2400 is a professional 4-bus mixer designed for live sound and installation applications, offering 4-band EQ, 6 AUX sends, and a 7×4 matrix.
1.1 Overview of the GL2400 Mixing Console
The Allen & Heath GL2400 is a professional analog mixing console available in 24, 32, or 40 channels, designed for live sound and installation applications. It offers 4-band EQ, 6 AUX sends, and a 7×4 matrix, providing flexibility for various audio setups. Its dual stereo channels and user-friendly layout make it ideal for venues, touring, and fixed installations, ensuring high-quality audio control.
1.2 Key Features and Target Audience
The GL2400 offers 4-band EQ, 6 AUX sends, and a 7×4 matrix, making it ideal for live sound, installations, and touring. Its robust build and intuitive design cater to sound engineers, live performers, and installers, providing flexibility and reliability for mid-sized venues and professional audio applications.
Installation and Safety Precautions
Ensure proper installation by following unpacking and setup guidelines. Avoid overloading and use correct power supply. Adhere to safety warnings to prevent damage or electrical hazards.
2.1 Unpacking and Initial Setup
Handle the GL2400 with care to avoid damage. Place it on a flat, stable surface. Check for included accessories and inspect for any shipping damage. Follow the user guide for proper installation and initial setup to ensure optimal performance and functionality.
2.2 Power Supply and Connectivity
Connect the GL2400 to a stable power source using the provided PSU. Ensure proper grounding for noise-free operation. The console supports balanced XLR outputs for main and auxiliary sends, and it is compatible with external power supplies like the Allen & Heath RPS9 for enhanced reliability.
2.3 Safety Warnings and Guidelines
Handle the GL2400 with care to avoid damage. Ensure proper ventilation and avoid exposure to moisture. Use only the supplied power cord and follow grounding instructions to prevent noise. Do not connect power amplifier outputs directly to the console. Always follow the manufacturer’s guidelines for safe installation and operation of the equipment.
Control Interface and Layout
The GL2400 features an intuitive control interface with logically arranged channel strips, master section, and EQ/AUX controls, designed for efficient and precise live sound management.
3.1 Channel Strip Layout and Functionality
Each channel strip on the Allen & Heath GL2400 is equipped with a 4-band equalizer and 6 AUX sends, providing comprehensive tone-shaping and flexible monitoring options. The layout includes a gain knob, fader, mute button, and PFL switch, designed for precise control and intuitive navigation during live sound applications.
3.2 Master Section Controls
The master section controls on the Allen & Heath GL2400 include the main LR and Mono volume faders, group and matrix routing options, and a 7×4 matrix for flexible signal distribution. LED metering provides accurate monitoring of output levels, ensuring precise control over the overall mix and system configuration.
3.3 Equalization and AUX Sections
The GL2400 features a 4-band equalizer on each channel, providing precise tone shaping. The AUX section includes 6 auxiliary sends with pre/post switching, enabling flexible routing for effects and monitoring. This setup ensures comprehensive control over sound processing and external signal distribution, ideal for live performances and professional audio applications.
Channels and Processing
The GL2400 offers 24 or 32 channels, each equipped with a 4-band equalizer for precise tone control. Channels support mono or stereo inputs, ensuring flexibility in live sound applications.
4.1 Mono and Stereo Channel Differences
Mono channels are ideal for vocals and instruments requiring a single audio path, while stereo channels support dual-path audio sources like keyboards. Mono channels feature a pan control for positioning in the mix, whereas stereo channels include a balance control for left-right adjustment, enhancing flexibility in sound design and mixing applications.
4.2 Gain Structure and Signal Flow
The GL2400’s gain structure begins at the preamp, with adjustable gain knobs for optimizing input levels. Signal flows through the 4-band EQ, fader, and AUX sends before reaching the master section. Proper gain staging ensures clear, distortion-free audio, while the signal flow provides flexibility for processing and routing in live and installed applications.
4.3 AUX Sends and Returns
The GL2400 features 6 AUX sends with pre/post switches for flexible monitoring and effects routing. AUX returns allow integration of external processors, enhancing live sound capabilities. This setup ensures precise control over auxiliary signals, enabling seamless management of foldback mixes and effects processing during performances.
Output and Routing Options
The GL2400 offers versatile output options, including main LR and Mono outputs, group routing, and AUX sends for monitor mixes, ensuring flexible signal distribution and control.
5.1 Main Outputs (LR and Mono)
The GL2400 features balanced main outputs for Left/Right (LR) and Mono signals, providing clear and robust audio distribution. These outputs are essential for connecting to amplifiers or external processors, ensuring reliable sound reinforcement in live environments. The Mono output is ideal for creating a centralized mix, enhancing system flexibility and performance.
5.2 Group and Matrix Routing
The GL2400 offers 4 audio groups with pan control, enabling flexible signal distribution. The 7×4 matrix provides advanced routing options, including stereo recording, zone separation, and monitor control, making it ideal for complex live sound applications.
5.3 AUX Outputs and Their Applications
The GL2400 features 6 AUX sends with pre/post fader switches, offering flexibility for monitoring, effects, and external processing. These outputs enable seamless integration of external devices, enhancing live sound setups with precision and versatility for a wide range of applications.
Troubleshooting and Maintenance
Troubleshoot common issues like noise or connectivity problems by checking cable connections and gain settings. Regularly clean faders and controls to ensure optimal performance and longevity.
6.1 Common Issues and Solutions
Common issues with the GL2400 include unwanted noise, connectivity problems, and fader wear. Solutions involve checking cable connections, ensuring proper gain staging, and cleaning controls. Regular maintenance, such as dusting and servicing faders, prevents malfunction. Refer to the user manual for detailed troubleshooting steps and repair guidance.
6.2 Routine Maintenance Tips
Regular maintenance ensures optimal performance of the GL2400. Clean faders and pots with a non-residue cleaner, inspect cables for damage, and dust internal components. Replace worn parts promptly and store the console in a dry, cool environment. Professional servicing is recommended annually to maintain warranty and functionality.
6.3 Professional Servicing Guidelines
Professional servicing should be performed annually by authorized Allen & Heath technicians to maintain warranty validity. Follow specific guidelines in the service manual (SM) for detailed repair and calibration procedures. Ensure all internal components are inspected and replaced if necessary to guarantee optimal performance and reliability.
User Manual and Documentation
The Allen & Heath GL2400 user manual provides a comprehensive guide, including technical specifications, matrix explanations, and troubleshooting tips. Available in multiple languages for global accessibility.
7.1 What’s Included in the Manual
The Allen & Heath GL2400 manual includes detailed technical specifications, installation guidelines, safety precautions, and operation instructions. It covers channel functionality, EQ settings, AUX configurations, and matrix routing. Troubleshooting tips and warranty information are also provided, ensuring comprehensive support for users.
7.2 Downloading Additional Documentation
Additional documentation, including service manuals, user guides, and technical specifications, can be downloaded from Allen & Heath’s official website. These resources provide in-depth details on troubleshooting, maintenance, and advanced features, ensuring comprehensive support for professionals using the GL2400 mixing console.
7.3 Understanding the Technical Specifications
The GL2400’s technical specs outline its 4-band EQ, 6 AUX sends, and 7×4 matrix. It supports 24-40 channels, with mono and stereo options, ensuring flexibility for live sound and installations. The manual details signal flow, connectivity, and performance metrics like signal-to-noise ratio, aiding professionals in optimizing the console’s capabilities for various audio applications.
Technical Specifications
The GL2400 offers 24-40 channels, 4-band EQ, 6 AUX sends, and a 7×4 matrix. It features balanced I/O, robust build quality, and weighs approximately 25kg, ensuring durability for professional use.
8.1 Audio Performance Metrics
The GL2400 delivers excellent audio performance with a microphone signal-to-noise ratio of 74 dB and total harmonic distortion of less than 0.005%. Its frequency response is 20 Hz to 20 kHz, ensuring accurate sound reproduction. Crosstalk is better than -80 dB, minimizing interference between channels.
8.2 Connectivity Options
The GL2400 offers balanced XLR and TRS outputs, ensuring high-quality audio connections. It features a 7×4 matrix for flexible routing and 6 AUX sends for monitoring and external processing. The mixer supports both internal PSU and external RPS9 power supply options, providing reliable operation in various live sound environments.
8.3 Physical Dimensions and Weight
The GL2400 is designed with a robust, lightweight chassis for easy transport and installation. Its compact dimensions allow seamless integration into live sound and fixed setups, ensuring durability while maintaining accessibility for professional audio applications.
Warranty and Support
Allen & Heath offers a 1-year warranty covering defects in materials and workmanship. Comprehensive customer support is available, including online resources and extended warranty options for enhanced coverage.
9.1 Manufacturer Warranty Details
The Allen & Heath GL2400 is backed by a 1-year manufacturer warranty covering defects in materials and workmanship. The warranty period begins from the date of purchase and applies when the product is used under normal conditions. Customers should contact their local Allen & Heath distributor for specific regional warranty terms and conditions.
9.2 Customer Support Channels
Allen & Heath provides comprehensive customer support through its website, offering downloadable manuals, firmware updates, and technical documentation. Users can also contact their local authorized distributors for assistance. Additionally, the company offers a dedicated helpline and email support for addressing technical queries and troubleshooting issues with the GL2400 console.
9.3 Extended Warranty Options
Allen & Heath offers extended warranty options for the GL2400, providing additional protection beyond the standard one-year warranty. Users can purchase extended coverage for up to three years, ensuring prolonged support and repairs. Contact authorized distributors or visit the manufacturer’s website for details on extended warranty programs and pricing.
The Allen & Heath GL2400 is a robust, versatile mixer ideal for live sound and installations, offering reliable performance and exceptional audio quality for professionals.
10.1 Final Thoughts on the GL2400
The Allen & Heath GL2400 is a highly reliable and versatile mixing console, offering exceptional audio quality and flexibility for live sound and installations. Its robust build, intuitive design, and professional-grade features make it a top choice for sound engineers and professionals seeking durability and precision in their audio systems.
10.2 Resources for Further Learning
For deeper understanding, download the official Allen & Heath GL2400 user manual and technical specifications from their website. Additional resources include service manuals, setup guides, and troubleshooting tips. Tutorials and expert forums also provide valuable insights, ensuring optimal use of the console’s advanced features and functionalities for professional audio applications.