Manuals / JBL / Home Audio / Stereo Equalizer

JBL user manual Introduction, Defining the DriveRack 260 System, DriveRack 260 Features

Models: 260

1 84

Download 84 pages 37.71 Kb

Page 6

Introduction

®

	Introduction	DriveRack
INTRODUCTION	Congratulations on your purchase of the dbx® DriveRack 260 Complete Equalization and

	Loudspeaker Management System! For over 30 years, dbx has been the industry leader in
	dynamics processing. With the DriveRack 260, dbx Professional Products has redefined the
	standard by which all other loudspeaker management processors will be compared.
	The DriveRack 260 continues the legacy of the DriveRack® family. The DriveRack 260 was
	designed with the purpose and vision of providing state-of-the-art signal processing, while
	utilizing a simple and intuitive user interface. For more information, please visit: www.driverack.
	com or www.dbxpro.com.
	This manual will be your guide to understanding the full functionality of the powerful DriveRack
	260 . By combining the different components, the configuration possibilities are limitless. After
	you have become familiar with the unit, we encourage you to experiment and find the most
	effective and efficient way to run your system by utilizing the powerful processing of the
	DriveRack 260.

0.1 Defining the DriveRack 260 System

The dbx DriveRack 260 is the most effective way to manage all aspects of post mixer processing and signal routing. The DriveRack 260 essentially becomes the only device that you will need between the mixer and the power amps. The following are just some of the features of the DriveRack 260.

DriveRack® 260 Features:

•Advanced Feedback Suppression™

•2.7 Seconds of Alignment and Zone Delay

•RS-232 PC GUI control

•Classic dbx® Compression and Limiting

•Graphic and Parametric EQ

•Independent Input and Output Processing

•Auto-EQ Function

•Full Bandpass, Crossover, and Routing Configurations

•Auto Gain Control

•Pink Noise Generator and full-time RTA

•Setup Wizard with JBL® and Crown® Components

•Security Lockout

•Wall Panel Control Inputs

ii		DriveRack® User Manual
ii

Image 6

JBL user manual Introduction, Defining the DriveRack 260 System, DriveRack 260 Features, DriveRack User Manual

Contents

User Manual Custom TuningsDriveRack FeaturingIMPORTANT SAFETY INFORMATION WARNING FOR YOUR PROTECTION READ THE FOLLOWINGELECTROMAGNETIC COMPATIBILITY IMPORTANT SAFETY INFORMATION•use only shielded interconnecting cables DECLARATION OF CONFORMITYSection 3 - Configuration Functions DriveRackTable of Contents Section 6 - Remote ControlWARRANTY INFO DriveRackINTRODUCTION Customer Service InfoIntroduction DriveRack 260 FeaturesDriveRack 0.1 Defining the DriveRack 260 SystemDriveRack User Manual 0.2 Service Contact InfoDriveRackIntroduction ZC-BOBIntroductionDriveRack 0.3 Warranty DriveRack User ManualGetting Started DriveRackSection Power Switch SectionIEC Power Cord Receptacle RS485 Zone Control Input RJ-45connector typeGetting Started DriveRackSection 1.2 Front PanelGetting Started SectionDriveRack 1.3 Quick StartStep-by-stepSetup Procedure DriveRackSection Getting StartedGetting Started DriveRackSection DriveRack User ManualGetting Started DriveRackSection DriveRack User ManualGetting Started DriveRackSection DriveRack User ManualDriveRack SectionGetting Started Getting Started DriveRackSection DriveRack User ManualDriveRack SectionGetting Started Getting Started DriveRackSection DriveRack User ManualDriveRack functionsSection editingEditing Functions DriveRackSection 2.1 Basic Navigation Modes2.3 Navigating the Pre-EQSection 28-GEQand PEQ DriveRackSectionEditing Functions 2.4 Navigating the CROSSOVER SectionEditing Functions DriveRackSection 2.5 Navigating the Other SectionDriveRackSection 2.7 Navigating the Delay SectionDELAY Editing FunctionsEditing Functions DriveRackSection 2.9 Navigating the Wizard SectionSection ConfigurationDriveRack functionsSection Configuration FunctionsDriveRack ProgramDriveRack SectionConfiguration Functions 3.3 Editing Factory ProgramsSection Configuration FunctionsDriveRack 3.4 Saving Factory Program Changes260 Signal Path Configuration Functions3.5 Creating a User Configuration DriveRackSectionSection Configuration FunctionsDriveRack A A2Section Configuration FunctionsDriveRack POST EQ Link/UnlinkDriveRack Configuration Functions3.6 Saving Configuration Changes SectionSection DETAILEDDriveRack PARAMETERSSection Flatten/RestoreDriveRack Detailed ParametersDetailed Parameters DriveRackSection 4.2 Feedback EliminatorDetailed Parameters DriveRackSection 4.3 Subharmonic SynthesizerDetailed Parameters DriveRackSection 4.4 GateDetailed Parameters DriveRackSection 4.5 Automatic Gain Control AGCSection Flatten/RestoreDriveRack Detailed ParametersDetailed Parameters DriveRackSection 4.9 Compressor/LimiterDetailed Parameters DriveRackSection Threshold T -40to +20dBuDetailed Parameters DriveRackSection LIMITERDelay Time 4.10 Alignment DelayDelay On/Off DriveRackSection Phase 0 to -175DegreesDriveRack Detailed ParametersSECTION UTILITIESMETERS DriveRackUtilities/Meters DriveRackSection 5.1.1 LCD Contrast / Auto EQ PlotPower Up Modes DriveRackSection DriveRack •ZC-1volume boost and cut•ZC-2volume boost and cut with mute SectionUtilities/Meters DriveRackSection 5.1.4 SecurityUtilities/Meters DriveRackSection Press Store to ChangeUtilities/Meters DriveRackSection 5.1.5 Program List/Program ChangeSection PROGRAM/CONFIG button to exitDriveRack Utilities/MetersDriveRack SectionINS A COMP - o+ Page Control DriveWareZone Controllers RemoteINSTALLATION SECTIONRemote Control CONFIGURATIONCONFIGURATION SECTIONRemote Control DriveRackSECTION Remote ControlDriveRack BASIC OPERATIONSECTION Remote ControlDriveRack The Utility Menus will appear as followsDriveRack Remote ControlZONE CONTROLLER INSTALLATION SECTION2 4 2 2 4 Remote ControlDriveRack SECTIONDiagram A Diagram B Remote ControlZONE CONTROLLER WIRING POWERDriveRack Remote ControlDiagram C SECTIONDiagram C Diagram ADiagram B DriveRackSection APPLICATIONGUIDE DriveRackApplication Guide DriveRackSection 7.1 Mono 4-Wayw/ Two Aux ZonesHardware DriveRackSectionApplication Guide 7.2- Stereo Tri-amp SoftwareApplication Guide DriveRackSection 7.3 Stereo w/ four Aux ZonesHardware Application Guide 7.4 Stereo Bi-ampw/ Dual DelayDriveRackSection SoftwarePage DriveRackAppendix A.2 Power Up Quick Key Options Appendix AA.1 Factory Reset Factory “Hard” ResetPower Supply Appendix AA.3 Specifications DriveRackAppendix A Adjust Crossover Output Gains gain structureDriveRack AppendixAppendix A A.5 Crossover DiagramsDriveRack AppendixAppendix Appendix ADriveRackPower Amplifiers Program List260 Signal Path DriveRackAppendix AAppendix A.7 Block Diagram WIRE RTA MIXERAppendix A A.8 Input and Output DiagramsDriveRack AppendixAppendix A.9 Gain Level Jumpers A.10 System Setup and Gain StructureDriveRackAppendix A DriveRack User ManualAppendix A One thing that is critical to system setup is maximizing gain structure. Gain structure refers to aligning the gain of each device so that they all clip at the same point, and the noise floor of the entire system is at its absolute minimum. Quite often PA systems are setup with the amplifier input controls turned all the way up in the incorrect assumption that this is the only way to get the maximum output level. Amplifiers are fixed gain devices, turning down the amplifier input attenuators does not change the potential output of the amplifier; it only requires more input voltage to get full output power. Many amplifiers will clip with an input level greater than +6 dBu when the input attenuators are turned all the way up. Most mixing consoles can deliver over +18 dBu of output level before clipping. This means that with your amps tuned all the way up you are sacrificing 12 dB of headroom, resulting in poorer noise performance and the potential of system clipping. By adjusting the amplifier controls properly, you can maximize your system performanceDriveRack AppendixPage 8760 South Sandy Parkway Sandy, Utah Phone: 801 Fax 801 Int’l Fax: 801 Questions or comments?18-1796V-EPrinted in China