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Manual JBL 260

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  • JBL 260 - page 1

    User Manual DriveRack ® Complete Equalization & Loudspeaker Management System Featuring Custom Tunings 260 ...

  • JBL 260 - page 2

    W ARNING FOR Y OUR PR O TECTION READ THE FOLLO WING: KEEP THESE INSTR UCTIONS HEED ALL W ARNINGS FOLLO W ALL INSTRUCTIONS THE APP ARA TUS SHALL NO T BE EXPOSED T O DRIPPING OR SPLASHING LIQUID AND NO OBJECT FILLED WITHI LIQUID , SUCH AS V ASES, SHALL BE PLA CED ON THE APP ARA TUS. CLEAN ONL Y WITH A DR Y CLO TH. DO NO T BLOCK ANY OF THE VENTILA TIO ...

  • JBL 260 - page 3

    DecLaratIon of conforMIty Manufacturer’s Name: dbx Professional Products Manufacturer’s Address: 8760 S. Sandy Parkway Sandy, Utah 84070, USA declares that the product: Product name: dbx 260 Note: Product name may be suffixed by the EU. Product option: None conforms to the following Product Specifications: Safety: IEC 60065 -01+Amd 1 EMC: EN 55 ...

  • JBL 260 - page 4

    DriveRack ® DriveRack® User Manual Introduction 0.1 Defining the DriveRack 260 ............................ii 0.2 Service Contact Info ........................................iii 0.3 Warranty .......................................................... iv Section 1 - Getting Started 1.1 Rear Panel Connections ................................... 2 1 ...

  • JBL 260 - page 5

    INTRO CUSTOMER SERVICE INFO Defining the DriveRack WARRANTY INFO INTRODUCTION DriveRack ® ...

  • JBL 260 - page 6

    ii DriveRack ® DriveRack® User Manual 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 managemen ...

  • JBL 260 - page 7

    DriveRack ® iii DriveRack® User Manual In addition to the amazing menu of processors available, the 260 also affords you the luxury of utilizing dbx Zone-Controller series wall-mounted control panels that will allow you to remotely control various parameters of the 260. The ZC-1 offers remote programmable Volume control to any installation using ...

  • JBL 260 - page 8

    iv DriveRack ® DriveRack® User Manual 0.3 Warranty This warranty is valid only for the original purchaser and only in the United States. 1. The warranty registration card that accompanies this product must be mailed within 30 days after purchase date to validate this warranty. You can also register online at www.dbxpro.com. Proof-of-purchase is c ...

  • JBL 260 - page 9

    Getting Started Section 1 DriveRack ® ...

  • JBL 260 - page 10

    2 DriveRack ® DriveRack® User Manual Section 1 1.1 Rear Panel Connections IEC Power Cord Receptacle The DriveRack 260 comes with a power supply that will accept voltages ranging from 100V-120V at frequencies from 50Hz-60Hz (domestic version model). An IEC cord is included. The EU version accepts 220V-240V at frequencies from 50Hz-60Hz. Power Swit ...

  • JBL 260 - page 11

    DriveRack ® 3 DriveRack® User Manual Section 1 1.2 Front Panel LCD Display The backlit LCD display of the DriveRack 260 provides the user with all of the vital processing information of the DriveRack 260 including: signal routing, effect block editing and Wizard Setup functions. The display will also notify the user if any internal clipping is ta ...

  • JBL 260 - page 12

    4 DriveRack ® DriveRack® User Manual Section 1 1.3 Quick Start For those of you that wish to jump right in, the following information has been provided to act as a quick start guide for optimizing performance of the DriveRack 260. Connections When setting up the DriveRack 260, make connections as follows: • Always make connections prior to a ...

  • JBL 260 - page 13

    DriveRack ® 5 DriveRack® User Manual Section 1 Step-by-step Setup Procedure Getting Started ...

  • JBL 260 - page 14

    6 DriveRack ® DriveRack® User Manual Section 1 Getting Started ...

  • JBL 260 - page 15

    DriveRack ® 7 DriveRack® User Manual Section 1 Getting Started ...

  • JBL 260 - page 16

    8 DriveRack ® DriveRack® User Manual Section 1 Getting Started ...

  • JBL 260 - page 17

    DriveRack ® 9 DriveRack® User Manual Section 1 Getting Started ...

  • JBL 260 - page 18

    10 DriveRack ® DriveRack® User Manual Section 1 Getting Started ...

  • JBL 260 - page 19

    DriveRack ® 11 DriveRack® User Manual Section 1 Getting Started ...

  • JBL 260 - page 20

    12 DriveRack ® DriveRack® User Manual Section 1 Getting Started ...

  • JBL 260 - page 21

    EDITING FUNCTIONS Editing Functions Section 2 DriveRack ® ...

  • JBL 260 - page 22

    14 DriveRack ® DriveRack® User Manual 2.1 Basic Navigation Modes Navigational aspects of the DriveRack 260 are simple and as follows. 1. FX buttons - This array of 12 FX buttons is your primary mode of directly accessing any effect module. 2. NEXT PG & PREV PG buttons - Successive presses of the NEXT PG or PREV PG buttons will move the user b ...

  • JBL 260 - page 23

    DriveRack ® 15 DriveRack® User Manual 2.3 Navigating the Pre-EQ Section (28-GEQ and PEQ) The EQ button toggles through the EQs used in each channel of the selected program menu. PEQ GEQ or Na vigating the "EQ Section" T o edit the parameters of the EQs used in a selected program, simply use the following procedure. From program mode, pr ...

  • JBL 260 - page 24

    16 DriveRack ® DriveRack® User Manual Section 2 2.5 Navigating the Other Section Na vigating the Dela y Section D elay - On/Off Length - Delay Time - Course, Fine U nits - Seconds,Feet,Meters DELA Y DELA Y Fr om program mode , press the Delay button. Pressing the Data Wheel will select the eff ect parameter to be edited . S uccessive Presses of t ...

  • JBL 260 - page 25

    DriveRack ® 17 DriveRack® User Manual 2.7 Navigating the Delay Section Na vigating the Dela y Section D elay - On/Off Length - Delay Time - Course, Fine U nits - Seconds,Feet,Meters DELA Y DELA Y Fr om program mode , press the Delay button. Pressing the Data Wheel will select the eff ect parameter to be edited . S uccessive Presses of the Delay b ...

  • JBL 260 - page 26

    18 DriveRack ® DriveRack® User Manual Section 2 2.9 Navigating the Wizard Section Na vigating the Dela y Section D elay - On/Off Length - Delay Time - Course, Fine U nits - Seconds,Feet,Meters DELA Y DELA Y Fr om program mode , press the Delay button. Pressing the Data Wheel will select the eff ect parameter to be edited . S uccessive Presses of ...

  • JBL 260 - page 27

    CONFIGURATION FUNCTIONS SOFTWARE Section 3 DriveRack ® ...

  • JBL 260 - page 28

    20 DriveRack ® DriveRack® User Manual Section 3 The Configuring section of the DriveRack 260 will be your key to successful navigation of the configuration functions of the DriveRack. The following information provides, descriptions about program functions and in depth configuration options of the DriveRack 260. 3.1 Program Definition The first s ...

  • JBL 260 - page 29

    DriveRack ® 21 DriveRack® User Manual Section 3 Navigation Modes Once you have selected a program with a configuration that accommodates your application, the DriveRack offers instant access to edit effect types within the configuration. To instantly access an effect module, simply press the corresponding button in the button array for the desire ...

  • JBL 260 - page 30

    22 DriveRack ® DriveRack® User Manual Section 3 3.4 Saving Factory Program Changes Once you are satisfied with the changes that have been made to a factory or user program, the DriveRack allows you to save these changes to the program as a custom USER program by pressing the STORE button. The first time you press the STORE button the DriveRack 26 ...

  • JBL 260 - page 31

    DriveRack ® 23 DriveRack® User Manual Section 3 3.5 Creating a User Configuration The 260 has 25 Factory Presets in which to choose from. For some configurations, you may be able to simply select one of these presets as a starting point and edit the program from there. In the Quick Start section of this manual, you saw how you can use the Wizards ...

  • JBL 260 - page 32

    24 DriveRack ® DriveRack® User Manual Section 3 • You are now in the Pre-Crossover EQ module. The upper left-hand corner of the display indicates what EQ type is currently selected. The A and B indicators indicate which input is currently selected. Rotate the DATA wheel to select either the 9-band Parametric EQ (PEQ) or 28 band Graphic EQ (G ...

  • JBL 260 - page 33

    DriveRack ® 25 DriveRack® User Manual Section 3 • You are now in the Crossover module. The upper left-hand corner of the display indicates what Crossover type is currently selected. Rotate the DATA wheel to select the Crossover type. The letters ‘A’ or ‘B’ to the left of the crossover indicate a mono crossover, ‘A+B’ indicates a ...

  • JBL 260 - page 34

    26 DriveRack ® DriveRack® User Manual Section 3 once you have exited Configuration mode. Pressing and then rotating the DATA wheel lets you link or unlink the Output Delay modules as desired. Use the PREV PG and NEXT PG buttons to move through outputs 1-6, allocating delay and linking/unlinking modules as necessary, then to the next module screen ...

  • JBL 260 - page 35

    DETAILED PARAMETERS PARAMETERS Section 4 DriveRack ® ...

  • JBL 260 - page 36

    28 DriveRack ® DriveRack® User Manual Section 4 The DriveRack 260 offers complete editing flexibility, by offering in-depth control over every parameter within each effect module. The following section will provide you with descriptions and explanations of all parameters within the DriveRack 260. 4.1 Pre-Crossover EQ (28 Band Graphic or 9-Band Pa ...

  • JBL 260 - page 37

    DriveRack ® 29 DriveRack® User Manual Section 4 Band 9 Frequency 20 to 20k (High Shelf) Selects the frequency of the high shelf parametric EQ. Slope 9 3-12dB/Octave Sets the slope of the high shelf parametric EQ. Level 9 -12 to 12 dB Sets the overall gain of the high shelf parametric 4.2 Feedback Eliminator The DriveRack 260 offers the exclusive ...

  • JBL 260 - page 38

    30 DriveRack ® DriveRack® User Manual Section 4 Section 4 creating feedback. FIXED mode is used before the performance without any input signal. In LIVE mode, the live filters automatically detect and remove feedback during the performance. When all of the live filters have been used, they begin to round robin. Essentially this means that the fir ...

  • JBL 260 - page 39

    DriveRack ® 31 DriveRack® User Manual Section 4 Sub-Harmonics Synth - 0 to 100% This parameter sets the overall level of the Subharmonic Synthesizer. 24-36Hz and 36-56Hz (Subharmonic Synthesis) Level - 0 to 100% These controls individually let you customize the amount of the respective synthesized frequencies to be added in, tuning the ultimate b ...

  • JBL 260 - page 40

    32 DriveRack ® DriveRack® User Manual Section 4 Section 4 4.5 Automatic Gain Control (AGC) The AGC is used to keep the average level of a signal at a constant level. This is done by selecting a desired Target output level and Window. The AGC keeps the signal within the Window about the selected Target by slowly adjusting the gain. The maximum gai ...

  • JBL 260 - page 41

    DriveRack ® 33 DriveRack® User Manual Section 4 4.6 Notch Filters The notch filter is the perfect tool for dropping out undesirable frequencies that may appear in the input signal. Up to six Notch filters are available for all six outputs. Notch On/Off Turns the notch filters on and off. Frequency (1 to 6) 20 to 20K Selects the desired notch filt ...

  • JBL 260 - page 42

    34 DriveRack ® DriveRack® User Manual Section 4 Section 4 Type This parameter selects the PEQ band type. Types include: • Bell - All bands are bell-shaped. • HShelf - One band is a high shelf, while all others are bell. • LShelf - One band is a low shelf, while all others are bell. • LHShelf - One band is a low shelf, one is a ...

  • JBL 260 - page 43

    DriveRack ® 35 DriveRack® User Manual Section 4 compression to choose from (1 being almost hard knee and 10 being the softest (most gradual) knee). This lets you choose the exact knee that is needed for the dynamic effect you are looking for. If you are unsure where to set this parameter, a setting of 4 is a great place to start. Threshold (T) -4 ...

  • JBL 260 - page 44

    36 DriveRack ® DriveRack® User Manual Section 4 Section 4 LIMITER Limiter On/Off Turns the Limiter module on and off. OverEasy (O) Off to 10 There are ten levels of OverEasy® that can be used for the limiters. The point when the limiter starts to limit is the “knee.” “Hard knee” limiting is when the limiter starts to reduce the level of ...

  • JBL 260 - page 45

    DriveRack ® 37 DriveRack® User Manual than the overshoot amount, and that it will not introduce harsh artifacts. The second stage is a unique program limiter featuring Intelligent Predictive Limiting™. Its function is to monitor the input signal and intelligently predict the amount of gain reduction needed to keep the output signal below the ce ...

  • JBL 260 - page 46

    38 DriveRack ® DriveRack® User Manual Section 4 Input 1 Level -Inf to 20dB Adjusts the input level of input 1. Input 2 Level -Inf to 20dB Adjusts the input level of input 2. Master level -Inf to 20dB This parameter is used to control the overall level of the mixed input signals. Pink Noise On/Off Turns the pink noise generator on and off. Noise L ...

  • JBL 260 - page 47

    UTILITIES/ METERS SECTION Utilities/Meters Section 5 DriveRack ® ...

  • JBL 260 - page 48

    40 DriveRack ® DriveRack® User Manual Section 5 The Utility section of the DriveRack 260 gives you the ability to perform several key operational functions to the DriveRack including: Security settings, Power-up features, Program list visibility, Auto EQ plotting and Display contrast settings. Additionally, pressing and holding the Utility button ...

  • JBL 260 - page 49

    DriveRack ® 41 DriveRack® User Manual Section 5 To set the PUP Program option use the following procedure: • From Program mode, press the UTILITY button and use the PREV PG or NEXT PG buttons to move to the page that appears as follows: Utility LCD Contrast 10 Auto EQ Plot RTA Power Up Modes PUP Program Stored PUP Mute Current ZC Setup Panel ...

  • JBL 260 - page 50

    42 DriveRack ® DriveRack® User Manual Section 5 • If any ZCs are currently connected and their dip switches properly set, the display will read ‘Panel Detected’ for any such corresponding Panel (ID) numbers. Rotate the DATA wheel to select the desired Panel (ID) number (options are 1-6). Once the panel to edit has been selected, press th ...

  • JBL 260 - page 51

    DriveRack ® 43 DriveRack® User Manual Section 5 Utility LCD Contrast 10 Auto EQ Plot RTA Power Up Modes PUP Program Stored PUP Mute Current ZC Setup Panel 1 None (STORE) - EDIT PANEL Panel 1 ZC-2 Boost 0dB Cut 0dB Output 1 3 5 2 4 6 Set Security Leve l Pre EQ Low Set 260 Device Leve l High Password Enter Password Password Edit High Password Edit ...

  • JBL 260 - page 52

    44 DriveRack ® DriveRack® User Manual Section 5 • When the Security Level function parameter is selected, rotating the DATA wheel is used to select which function you would like to set the security for. Items include: Program Changes, Program List, Mutes, Store, Inputs, Pre EQ, Insert 1, Insert 2, Pre Delay, Crossover, Post EQ, Dynamics, Pos ...

  • JBL 260 - page 53

    DriveRack ® 45 DriveRack® User Manual Section 5 • Use the PREV PG or NEXT PG buttons to move to the security page that appears as follows: Utility LCD Contrast 10 Auto EQ Plot RTA Power Up Modes PUP Program Stored PUP Mute Current ZC Setup Panel 1 None (STORE) - EDIT PANEL Panel 1 ZC-2 Boost 0dB Cut 0dB Output 1 3 5 2 4 6 Set Security Leve l ...

  • JBL 260 - page 54

    46 DriveRack ® DriveRack® User Manual Section 5 The procedure for setting up the program list is as follows. • From Program mode, press the UTILITY button and use the PREV PG or NEXT PG buttons to move to the page that appears something like this: Utility LCD Contrast 10 Auto EQ Plot RTA Power Up Modes PUP Program Stored PUP Mute Current ZC ...

  • JBL 260 - page 55

    DriveRack ® 47 DriveRack® User Manual Section 5 Utilities/Meters 5.2.1 - Meters To meter various aspects of the 260, press and hold the UTILITY button until the display enters the Metering section. • Use the PREV PG or NEXT PG button to move to the page that appears as follows: INS COMP o+ 1 INS 2 -30-20 0 +2 0 - A B A B LIM 0+ LIM LIM -30-2 ...

  • JBL 260 - page 56

    ...

  • JBL 260 - page 57

    Remote Control DriveWare ™ Zone Controllers Section 6 DriveRack ® ...

  • JBL 260 - page 58

    50 DriveRack ® DriveRack® User Manual SECTION 6 To make operation of the DriveRack 260 even more convenient, dbx includes the option of using the DriveRack PC GUI software (DriveWare™) and/or Zone Controllers (sold separately). The following section contains some basic information regarding the utilization of the DriveWare™ software including ...

  • JBL 260 - page 59

    DriveRack ® 51 DriveRack® User Manual CONNECTION • Connect the supplied dbx Null Modem cable between the computer’s RS-232 port and DriveRack’s PC (RS-232) port. The cable must be wired like this: DB-9 female-to-female null modem cable Important Note! A straight through RS-232 cable will not work with the DriveRack. CONFIGURATION 2 •? ...

  • JBL 260 - page 60

    52 DriveRack ® DriveRack® User Manual SECTION 6 BASIC OPERATION • Double left click on the DriveRack 260 icon in the upper left-hand corner of the main DriveWare window. • You will now see your 260 device Edit Window where you can program and control the DriveRack 260 device. • To edit modules, double-left-click on the desired modu ...

  • JBL 260 - page 61

    DriveRack ® 53 DriveRack® User Manual • To enter the Utility Menu, Right-Click-hold on the top bar of the program edit window. Select ‘Utilities’ from the menu items list. The Utility Menus will appear as follows: For more comprehensive information on using DriveWare, please visit the Training section and FAQs section at www.dbxpro.com. ...

  • JBL 260 - page 62

    54 DriveRack ® DriveRack® User Manual SECTION 6 6.2.1 ZC-Zone Controllers ZONE CONTROLLER INSTALLATION The installation of the Zone Controllers MUST be accomplished with the use of cable which is rated VW-1 or higher. Common NEC designations which meet this rating include: CMP, CMR, CMG, CM and CMX. The Zone Controllers offer additional utility t ...

  • JBL 260 - page 63

    DriveRack ® 55 DriveRack® User Manual 1. 3. 5. 4. 2. ZC-1 & ZC-2 1. Select the ‘Panel’ number (this must match the Dip Switch setting (ID#) set on the ZC wall panel). 2. Select a ZC-1 (or ZC-2 if using a ZC-2) as the ‘Type’. 3. Set the maximum amount of ‘Boost’ that will be applied (0 dB typical). 4. Set the maximum amount of ‘C ...

  • JBL 260 - page 64

    56 DriveRack ® DriveRack® User Manual SECTION 6 ZONE CONTROLLER WIRING The DriveRack 260 Zone Controllers, (ZC-1, ZC-2, ZC-3, ZC-4) can be wired serially or in parallel. To wire in series each Zone Controller must have an identification or zone number chosen using the DIP switches on the side of the controller (see diagram A). Each controller mus ...

  • JBL 260 - page 65

    DriveRack ® 57 DriveRack® User Manual Diagram C ZC-BOB ZC-1 ZC-2 ZC-3 ZC-4 SECTION 6 Remote Control ...

  • JBL 260 - page 66

    58 DriveRack ® DriveRack® User Manual When connecting Zone Controllers, in series, the following cable length restrictions apply: • If using a single ZC, the ZC may be connected directly to the DriveRack 260. The maximum cable length for a single ZC connected to the DriveRack 260 cannot exceed 1000 feet. • As shown in Diagram A, any (3) ...

  • JBL 260 - page 67

    APPLICATION GUIDE Section 7 DriveRack ® ...

  • JBL 260 - page 68

    60 DriveRack ® DriveRack® User Manual Section 7 This Application guide section is provided to offer suggested installation applications of the DriveRack 260 that will allow you to optimize peak performance of the processor. Note that the six included applications represent the extensive flexibility of the DriveRack units. These applications can b ...

  • JBL 260 - page 69

    DriveRack ® 61 DriveRack® User Manual 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 S ...

  • JBL 260 - page 70

    62 DriveRack ® DriveRack® User Manual 7.3 Stereo w/ four Aux Zones 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. 4. Make connections between the Zon ...

  • JBL 260 - page 71

    DriveRack ® 63 DriveRack® User Manual 7.4 Stereo Bi-amp w/ Dual Delay 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. 4. Make connections between the ...

  • JBL 260 - page 72

    ...

  • JBL 260 - page 73

    Appendix DriveRack ® ...

  • JBL 260 - page 74

    66 DriveRack ® DriveRack® User Manual Appendix A A.1 Factory Reset In the event that a reset is required, the DriveRack 260 offers you the option of performing a “Soft” or “Hard” reset. The Soft Reset resets all operating parameters except user programs. The Hard Reset Procedure will reset all programmable information back to the factory ...

  • JBL 260 - page 75

    DriveRack ® 67 DriveRack® User Manual A.3 Specifications Analog Inputs: Number of Inputs: (2) Line inputs. (1) RTA Mic input Connectors: (2) Female XLR line inputs, XLR RTA Mic input Type: Electronically balanced/RF filtered Impedance: > 40k Ω Max input line level: +30dBu with input jumpers in +30 position (+22dBu from factory) CMRR: > 45d ...

  • JBL 260 - page 76

    68 DriveRack ® DriveRack® User Manual Appendix A A.4 Auto EQ Optimization Tips By using the System Setup Wizard, crossover parameters, post-crossover parametric EQ and, in some cases, driver alignment delay settings are set to match your system. The Auto-EQ can be used to adjust your system to compensate for room effects, and adjust the response ...

  • JBL 260 - page 77

    DriveRack ® 69 DriveRack® User Manual A.5 Crossover Diagrams 2X3(2-band) BP LH BP RH + L R L R L Mono L Mono 2X4(2-band) BP LH BP RH LL RL 2X2 BP L R L R 2X6 (3-band) BP LH BP RH LM BP RM LL RL L R L R 2X5 (3-band) BP LH BP BP RH + LM RM BP 1X1(1-band) BP BP 1X2(2-band) BP H L BP 1X3(3-band) 1X4(4-band) BP H BP BP M L BP H BP BP MH ML BP L 1X5(4- ...

  • JBL 260 - page 78

    70 DriveRack ® DriveRack® User Manual A.6 Program List/ Speaker Tunings/ Power Amp Tunings Appendix A Appendix Program List User 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Factory 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 Program Name 2x3w/3Zones LCRw/Cluster 1x4w/2Zones 2x5w/1Zone 2x4Tri-Am ...

  • JBL 260 - page 79

    DriveRack ® 71 DriveRack® User Manual A.7 Block Diagram 260 Signal P ath WIRE RT A MIXER ROUTIN G A B A+B RT A Appendix A Appendix ...

  • JBL 260 - page 80

    72 DriveRack ® DriveRack® User Manual Appendix A A.8 Input and Output Diagrams 1-4 Input 1 Gain DSP DSP Input 1 Eurobloc k DSP Input 2 XLR 1 XLR 2 Input 2 Gain Input 1 Gain Input 2 Gain 5 6 Appendix ...

  • JBL 260 - page 81

    DriveRack ® 73 DriveRack® User Manual A.9 Gain Level Jumpers CAUTION: These servicing instructions are for use by qualified service personnel only . T o reduce the risk of electric shock, do not perform any servicing other than that contained in the operating instructions unless you are qualified to do so. Refer all servicing to qualified service ...

  • JBL 260 - page 82

    74 DriveRack ® DriveRack® User Manual Appendix 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 ...

  • JBL 260 - page 83

    ...

  • JBL 260 - page 84

    8760 South Sandy Parkway Sandy, Utah 84070 Phone: (801) 568-7660 Fax (801) 568-7662 Int’l Fax: (801) 568-7583 Questions or comments? E-mail us at: customer@dbxpro.com or visit our World Wide Web home page at: www.dbxpro.com 18-1796V-E Printed in China ...

Manufacturer JBL Category Stereo Equalizer

Documents that we receive from a manufacturer of a JBL 260 can be divided into several groups. They are, among others:
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- 260 manuals
- JBL product data sheets
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- or energy labels JBL 260
All of them are important, but the most important information from the point of view of use of the device are in the user manual JBL 260.

A group of documents referred to as user manuals is also divided into more specific types, such as: Installation manuals JBL 260, service manual, brief instructions and user manuals JBL 260. Depending on your needs, you should look for the document you need. In our website you can view the most popular manual of the product JBL 260.

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A manual, also referred to as a user manual, or simply "instructions" is a technical document designed to assist in the use JBL 260 by users. Manuals are usually written by a technical writer, but in a language understandable to all users of JBL 260.

A complete JBL manual, should contain several basic components. Some of them are less important, such as: cover / title page or copyright page. However, the remaining part should provide us with information that is important from the point of view of the user.

1. Preface and tips on how to use the manual JBL 260 - At the beginning of each manual we should find clues about how to use the guidelines. It should include information about the location of the Contents of the JBL 260, FAQ or common problems, i.e. places that are most often searched by users in each manual
2. Contents - index of all tips concerning the JBL 260, that we can find in the current document
3. Tips how to use the basic functions of the device JBL 260 - which should help us in our first steps of using JBL 260
4. Troubleshooting - systematic sequence of activities that will help us diagnose and subsequently solve the most important problems with JBL 260
5. FAQ - Frequently Asked Questions
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