Manuals / JBL / Home Audio / Stereo Equalizer

JBL 260 user manual Section, DriveRack, Utilities/Meters

Models: 260

1 84

Page 47

DriveRack®	Section 5
	Utilities/Meters

UTILITIES/

METERS

SECTION

Page 47

Image 47

JBL 260 user manual Section, DriveRack, Utilities/Meters

Contents

Featuring Custom TuningsDriveRack User ManualWARNING FOR YOUR PROTECTION READ THE FOLLOWING IMPORTANT SAFETY INFORMATIONDECLARATION OF CONFORMITY IMPORTANT SAFETY INFORMATION•use only shielded interconnecting cables ELECTROMAGNETIC COMPATIBILITYSection 6 - Remote Control DriveRackTable of Contents Section 3 - Configuration FunctionsCustomer Service Info DriveRackINTRODUCTION WARRANTY INFO0.1 Defining the DriveRack 260 System DriveRack 260 FeaturesDriveRack IntroductionZC-BOB 0.2 Service Contact InfoDriveRackIntroduction DriveRack User ManualDriveRack User Manual IntroductionDriveRack 0.3 WarrantySection Getting StartedDriveRack RS485 Zone Control Input RJ-45connector type SectionIEC Power Cord Receptacle Power Switch1.2 Front Panel DriveRackSection Getting Started1.3 Quick Start SectionDriveRack Getting StartedGetting Started DriveRackSection Step-by-stepSetup ProcedureDriveRack User Manual DriveRackSection Getting StartedDriveRack User Manual DriveRackSection Getting StartedDriveRack User Manual DriveRackSection Getting StartedGetting Started DriveRackSection DriveRack User Manual DriveRackSection Getting StartedGetting Started DriveRackSection DriveRack User Manual DriveRackSection Getting Startedediting functionsSection DriveRack2.1 Basic Navigation Modes DriveRackSection Editing Functions2.4 Navigating the CROSSOVER Section DriveRackSectionEditing Functions 2.3 Navigating the Pre-EQSection 28-GEQand PEQ2.5 Navigating the Other Section DriveRackSection Editing FunctionsEditing Functions 2.7 Navigating the Delay SectionDELAY DriveRackSection2.9 Navigating the Wizard Section DriveRackSection Editing Functionsfunctions ConfigurationDriveRack SectionProgram Configuration FunctionsDriveRack Section3.3 Editing Factory Programs SectionConfiguration Functions DriveRack3.4 Saving Factory Program Changes Configuration FunctionsDriveRack SectionDriveRackSection Configuration Functions3.5 Creating a User Configuration 260 Signal PathA A2 Configuration FunctionsDriveRack SectionPOST EQ Link/Unlink Configuration FunctionsDriveRack SectionSection Configuration Functions3.6 Saving Configuration Changes DriveRackPARAMETERS DETAILEDDriveRack SectionDetailed Parameters Flatten/RestoreDriveRack Section4.2 Feedback Eliminator DriveRackSection Detailed Parameters4.3 Subharmonic Synthesizer DriveRackSection Detailed Parameters4.4 Gate DriveRackSection Detailed Parameters4.5 Automatic Gain Control AGC DriveRackSection Detailed ParametersDetailed Parameters Flatten/RestoreDriveRack Section4.9 Compressor/Limiter DriveRackSection Detailed ParametersThreshold T -40to +20dBu DriveRackSection Detailed ParametersLIMITER DriveRackSection Detailed ParametersDriveRack 4.10 Alignment DelayDelay On/Off Delay TimeDetailed Parameters Phase 0 to -175DegreesDriveRack SectionDriveRack UTILITIESMETERS SECTION5.1.1 LCD Contrast / Auto EQ Plot DriveRackSection Utilities/MetersSection Power Up ModesDriveRack Section •ZC-1volume boost and cut•ZC-2volume boost and cut with mute DriveRack5.1.4 Security DriveRackSection Utilities/MetersPress Store to Change DriveRackSection Utilities/Meters5.1.5 Program List/Program Change DriveRackSection Utilities/MetersUtilities/Meters PROGRAM/CONFIG button to exitDriveRack SectionINS A COMP - o+ DriveRackSection Page Remote DriveWareZone Controllers ControlCONFIGURATION SECTIONRemote Control INSTALLATIONDriveRack SECTIONRemote Control CONFIGURATIONBASIC OPERATION Remote ControlDriveRack SECTIONThe Utility Menus will appear as follows Remote ControlDriveRack SECTIONSECTION Remote ControlZONE CONTROLLER INSTALLATION DriveRackSECTION Remote ControlDriveRack 2 4 2 2 4POWER Remote ControlZONE CONTROLLER WIRING Diagram A Diagram BSECTION Remote ControlDiagram C DriveRackDriveRack Diagram ADiagram B Diagram CDriveRack APPLICATIONGUIDE Section7.1 Mono 4-Wayw/ Two Aux Zones DriveRackSection Application GuideSoftware DriveRackSectionApplication Guide 7.2- Stereo Tri-amp Hardware7.3 Stereo w/ four Aux Zones DriveRackSection Application GuideSoftware Application Guide 7.4 Stereo Bi-ampw/ Dual DelayDriveRackSection HardwarePage DriveRackAppendix Factory “Hard” Reset Appendix AA.1 Factory Reset A.2 Power Up Quick Key OptionsDriveRack Appendix AA.3 Specifications Power SupplyAppendix Adjust Crossover Output Gains gain structureDriveRack Appendix AAppendix A.5 Crossover DiagramsDriveRack Appendix AProgram List Appendix ADriveRackPower Amplifiers AppendixWIRE RTA MIXER DriveRackAppendix AAppendix A.7 Block Diagram 260 Signal PathAppendix A.8 Input and Output DiagramsDriveRack Appendix ADriveRack User Manual A.10 System Setup and Gain StructureDriveRackAppendix A Appendix A.9 Gain Level JumpersAppendix 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 Appendix APage 18-1796V-EPrinted in China 8760 South Sandy Parkway Sandy, Utah Phone: 801Fax 801 Int’l Fax: 801 Questions or comments?