JBL HLA 4897 Owner's Manual

JBL HLA 4897 Owner's Manual

Horn loaded array system

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HLA 4895 & 4897
Horn Loaded Array
System Owner Manual

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Table of Contents
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Summarization of Contents

Introduction and System Overview
HLA New Technologies Overview
Overview of innovative technologies like DCD, Composite Magazine, and Waveguide.
Getting Started with System Setup
Connecting and Lifting Hardware
Details on connecting bars, lifting bars, and wheel bars for speaker array assembly.
System Controller Connections
Explanation of the DSC280 system controller and its input/output connections.
Using System Controllers
DSC280 Controller Operation
Operating instructions for the DSC280, including display screens and controls.
System Files and Security
Managing system files, presets, and the owner lock feature for security.
DSC260 Controller Usage
Information on using the DSC260 as an alternative controller for specific applications.
Matching Transducers to Power Amplifiers
Driver Specifications and Power Ratings
Specifications for HLA drivers, including frequency, impedance, and power ratings.
Power Amplifier Matching
Guidance on selecting and configuring power amplifiers for HLA systems.
Four-Ohm Load Performance
Explanation of performance characteristics when using four-ohm loads.
Input / Output Connector Panels and Cabling
Speaker Connector Panels
Details of NL-8 connector wiring for 4895 and 4897 speakers.
Cabling and Harnessing
Information on JBL's speaker cables and custom options for array connections.
Hanging and Rigging Information for HLA Arrays
Rigging Design and Safety Calculations
Principles of load rating, weight calculations, and safety for hanging arrays.
Hanging Components and Assembly Steps
Required components and step-by-step procedures for assembling hanging arrays.
Waveguide Tilting and Array Setup
Adjusting waveguide tilt angles for optimal coverage and array configuration.
HLA System Array Setups
Array Configuration and Splay Adjustments
Methods for adjusting horizontal splay and vertical tilt for array coverage.
System Transport and Truck-pack Information
Truck and Container Packing
Guidelines for packing HLA speakers in trucks and containers for safe transport.
System Maintenance and Repair Tips
Grille Maintenance Procedures
Step-by-step instructions for removing and replacing speaker grilles.
Driver and Subwoofer Replacement
Procedures for replacing speaker drivers and subwoofer components.
Appendix A, HLA Polarity Issues
Driver Polarity Conventions
Explanation of polarity conventions for different HLA drivers and their cone motion.
Appendix B, DSC280 Settings
DSC280 Tuning Parameters
Tables detailing DSC280 settings for various array configurations and parameters.
Appendix C, Available JBL parts and accessories
Available Parts and Accessories
List of available spare parts, drivers, and accessories for the HLA system.
Appendix D, Supplemental Info-ATM Group, Inc. (Fly-Ware™)
ATM Fly-Ware Hanging Hardware
Information on ATM Group's hanging hardware designed for HLA systems.
Appendix E, Additional Information Resources
JBL Technical Documentation Resources
List of useful manuals and technical notes for HLA system users.
Appendix F, Typical HLA Array Setups
Typical Array Setups: Performance Venues
Examples of HLA array configurations for performing arts theatres, arenas, and stadiums.

Table of Contents