Manuals / JBL / Home Audio / Stereo Equalizer

JBL 260 user manual DriveRackSection, Application Guide 7.2- Stereo Tri-amp, Hardware, Software

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DriveRackSection 7

Application Guide

7.2- Stereo Tri-amp

Hardware

1.Connect the outputs from the mixer to the inputs of the DriveRack.

2.Connect the outputs of the DriveRack and run to the selected speaker amplifier.

3.Making sure that all outputs are muted, apply power to the mixer and amplifiers.

Software

1.Select a program (Factory: 2x6 Stereo) as a template.

2.Load the program by pressing the PROG/CONFIG button.

3.Adjust the individual parameters for the system by pressing the Processing Module buttons

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JBL SR4731X

JBL 4719X

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Page 69

Image 69

JBL 260 user manual DriveRackSection, Application Guide 7.2- Stereo Tri-amp, Hardware, Software

Contents

DriveRack Custom TuningsUser Manual FeaturingWARNING FOR YOUR PROTECTION READ THE FOLLOWING IMPORTANT SAFETY INFORMATION•use only shielded interconnecting cables IMPORTANT SAFETY INFORMATIONELECTROMAGNETIC COMPATIBILITY DECLARATION OF CONFORMITYTable of Contents DriveRackSection 3 - Configuration Functions Section 6 - Remote ControlINTRODUCTION DriveRackWARRANTY INFO Customer Service InfoDriveRack DriveRack 260 FeaturesIntroduction 0.1 Defining the DriveRack 260 SystemDriveRackIntroduction 0.2 Service Contact InfoDriveRack User Manual ZC-BOBDriveRack User Manual IntroductionDriveRack 0.3 WarrantyGetting Started DriveRackSection IEC Power Cord Receptacle SectionPower Switch RS485 Zone Control Input RJ-45connector typeSection DriveRackGetting Started 1.2 Front PanelDriveRack SectionGetting Started 1.3 Quick StartSection DriveRackStep-by-stepSetup Procedure Getting StartedSection DriveRackGetting Started DriveRack User ManualSection DriveRackGetting Started DriveRack User ManualSection DriveRackGetting Started DriveRack User ManualDriveRack SectionGetting Started Section DriveRackGetting Started DriveRack User ManualDriveRack SectionGetting Started Section DriveRackGetting Started DriveRack User ManualSection functionsDriveRack editingSection DriveRackEditing Functions 2.1 Basic Navigation ModesEditing Functions DriveRackSection2.3 Navigating the Pre-EQSection 28-GEQand PEQ 2.4 Navigating the CROSSOVER SectionSection DriveRackEditing Functions 2.5 Navigating the Other SectionDELAY 2.7 Navigating the Delay SectionDriveRackSection Editing FunctionsSection DriveRackEditing Functions 2.9 Navigating the Wizard SectionDriveRack ConfigurationSection functionsDriveRack Configuration FunctionsSection ProgramConfiguration Functions SectionDriveRack 3.3 Editing Factory ProgramsDriveRack Configuration FunctionsSection 3.4 Saving Factory Program Changes3.5 Creating a User Configuration Configuration Functions260 Signal Path DriveRackSectionDriveRack Configuration FunctionsSection A A2DriveRack Configuration FunctionsSection POST EQ Link/Unlink3.6 Saving Configuration Changes Configuration FunctionsDriveRack SectionDriveRack DETAILEDSection PARAMETERSDriveRack Flatten/RestoreSection Detailed ParametersSection DriveRackDetailed Parameters 4.2 Feedback EliminatorSection DriveRackDetailed Parameters 4.3 Subharmonic SynthesizerSection DriveRackDetailed Parameters 4.4 GateSection DriveRackDetailed Parameters 4.5 Automatic Gain Control AGCDriveRack Flatten/RestoreSection Detailed ParametersSection DriveRackDetailed Parameters 4.9 Compressor/LimiterSection DriveRackDetailed Parameters Threshold T -40to +20dBuSection DriveRackDetailed Parameters LIMITERDelay On/Off 4.10 Alignment DelayDelay Time DriveRackDriveRack Phase 0 to -175DegreesSection Detailed ParametersMETERS UTILITIESSECTION DriveRackSection DriveRackUtilities/Meters 5.1.1 LCD Contrast / Auto EQ PlotPower Up Modes DriveRackSection •ZC-2volume boost and cut with mute •ZC-1volume boost and cutDriveRack SectionSection DriveRackUtilities/Meters 5.1.4 SecuritySection DriveRackUtilities/Meters Press Store to ChangeSection DriveRackUtilities/Meters 5.1.5 Program List/Program ChangeDriveRack PROGRAM/CONFIG button to exitSection Utilities/MetersDriveRack SectionINS A COMP - o+ Page Zone Controllers DriveWareControl RemoteRemote Control SECTIONINSTALLATION CONFIGURATIONRemote Control SECTIONCONFIGURATION DriveRackDriveRack Remote ControlSECTION BASIC OPERATIONDriveRack Remote ControlSECTION The Utility Menus will appear as followsZONE CONTROLLER INSTALLATION Remote ControlDriveRack SECTIONDriveRack Remote Control2 4 2 2 4 SECTIONZONE CONTROLLER WIRING Remote ControlDiagram A Diagram B POWERDiagram C Remote ControlDriveRack SECTIONDiagram B Diagram ADiagram C DriveRackGUIDE APPLICATIONSection DriveRackSection DriveRackApplication Guide 7.1 Mono 4-Wayw/ Two Aux ZonesApplication Guide 7.2- Stereo Tri-amp DriveRackSectionHardware SoftwareSection DriveRackApplication Guide 7.3 Stereo w/ four Aux ZonesDriveRackSection Application Guide 7.4 Stereo Bi-ampw/ Dual DelayHardware SoftwarePage DriveRackAppendix A.1 Factory Reset Appendix AA.2 Power Up Quick Key Options Factory “Hard” ResetA.3 Specifications Appendix APower Supply DriveRackDriveRack Adjust Crossover Output Gains gain structureAppendix A AppendixDriveRack A.5 Crossover DiagramsAppendix A AppendixPower Amplifiers Appendix ADriveRackAppendix Program ListAppendix A.7 Block Diagram DriveRackAppendix A260 Signal Path WIRE RTA MIXERDriveRack A.8 Input and Output DiagramsAppendix A AppendixDriveRackAppendix A A.10 System Setup and Gain StructureAppendix A.9 Gain Level Jumpers DriveRack User ManualDriveRack 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 performanceAppendix A AppendixPage 8760 South Sandy Parkway Sandy, Utah Phone: 801 Fax 801 Int’l Fax: 801 Questions or comments?18-1796V-EPrinted in China