Complete Equalization & Loudspeaker Management System 4800/4820 User Manual
IMPORTANT SAFETY INSTRUCTIONS WARNING FOR YOUR PROTECTION READ THESE INSTRUCTIONS: CAUTION KEEP THESE INSTRUCTIONS RISK OF ELECTRIC SHOCK DO NOT OPEN A T T E N T I O N : RISQUE DE CHOC ELECTRIQUE - NE PAS OUVRIR W A R N I N G : TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE The symbols shown above are internationally accepted symbols that warn of potential hazards with electrical products.
IMPORTANT SAFETY INSTRUCTIONS ELECTROMAGNETIC COMPATIBILITY This device complies with part 15 of the FCC Rules and the Product Specifications noted on the Declaration of Conformity. Operation is subject to the following two conditions: • • t his device may not cause harmful interference, and this device must accept any interference received, including interference that may cause undesired operation. Operation of this unit within significant electromagnetic fields should be avoided.
DriveRack ® Table of Contents Introduction Section 6 - Detailed Parameters 0.1 DriveRack 4800/4820 Features..............................ii 0.2 Service Contact Info.............................................iii 0.3 Warranty...............................................................iii 6.1 Input Mixer.........................................................40 6.2 Input Router........................................................41 6.3 Input Graphic EQ.............................................
DriveRack ® Table of Contents Appendix A.1 Specifications.......................................................68 A.2 Block Diagram....................................................70 A.3 Preset Table.........................................................71 A.4 Crossover Table...................................................71 A.5 Digital I/O and Clocking....................................72 A.6 Word Clock Termination....................................72 A.
DriveRack ®
DriveRack ® Introduction INTRODUCTION features Customer Service Info WARRANTY INFO
Introduction INTRODUCTION DriveRack ® Congratulations on your purchase of the dbx® DriveRack® 4800 or 4820 system processor! Designed to provide “Everything you need between the mixer and the power amps,” the 4800 and 4820 provide incredible flexibility, sonic excellence, and intuitive control for performance applications.
DriveRack ® Introduction 0.2 - Service Contact Info If you require technical support, contact dbx Customer Service. Be prepared to accurately describe the problem. Know the serial number of your unit - this is printed on a sticker attached to the top panel. If you have not already taken the time to fill out your warranty registration card and send it in, please do so now. Before you return a product to the factory for service, we recommend you refer to the manual.
Introduction iv DriveRack® 4800/4820 User Manual DriveRack ®
DriveRack ® Section 1 Getting Started Rear panel front panel software installation
Section 1 DriveRack ® Getting Started 1.1 - Rear Panel 4800/4820 1 2 7 8 9 3 4 5 10 6 11 1. IEC Power Cord Receptacle The 4800 and 4820 come with a power supply that will accept voltages ranging from 100V-240V at frequencies from 50Hz-60Hz. An IEC cord is included for both a US and European style AC mains plug. 2. Optional CobraNet™ Connection (RJ-45) The Option Slot is for a CobraNet card that provides CobraNet audio and control networking. 3.
DriveRack ® Getting Started Section 1 9. Zone Control Inputs 1-12 (RJ-45) These RJ-45 connections are used to receive control information from up to 12 ZC wall panel controllers. 10. Word Clock BNC Connection This connection allows the DriveRack 4800 or 4820 to lock to a master system clock. It is not terminated. For best results we recommend using “T” connectors when setting up a BNC Word Clock network and terminating the end of of this network with a 75 ohm BNC terminator. (See Appendix 6). 11.
Section 1 Getting Started DriveRack ® OUTPUT is used to select and/or enter the Input and Output setup module. ROUTE/MIX is used to select and/or enter either the Input or Output Router or Mixer module. Insert 1 is used to select and/or enter the first Insert function in either the Input or Output. Insert 2 is used to select and/or enter the second Insert function in either the Input or Output. Delay is used to select and/or enter either the Input or Output Delay module.
DriveRack ® Getting Getting Started Started Section 1 9. Status LEDs This cluster of four LEDs indicate the following functions: CLIP - indicates either A/D, D/A, or DSP clipping. SYNC - indicates DSP syncing to an internal clock, AES/EBU, CobraNet, or Wordclock input. RS-232 - indicates PC connection via RS-232. LINK/ACT - indicates connection to and/or activity on an Ethernet network. 10. Output Adjustment/Mute Knobs 1-8 The Output Trim/Mute knobs provide Trim Gain adjustment of each output.
Section 1 Getting Started DriveRack ® CLIP - indicates either A/D, D/A, or DSP clipping. SYNC - indicates DSP syncing to an internal clock, AES/EBU or Wordclock input. RS-232 - indicates PC connection via RS-232. LINK/ACT - indicates connection to and/or activity on an Ethernet network. 6. Mute Buttons The DriveRack 4820 provides a MUTE button for each output. 7. Output Meters The DriveRack 4800 provides eight independent eight-segment output headroom meters that range from SIG (-48dB) to 0dB. 8.
DriveRack ® Getting Started Section 1 Minimum System Requirements for System Architect are: 1GHz, Pentium III processor 512MB RAM Windows 2000 or XP service pack 2 Recommended System Requirements: 3GHz, Pentium 4 processor 1GB RAM Recommended screen resolution: 1024 x 768 pixels or higher Installation • Install the System Architect GUI software from either the Harman Professional website at www.harmanpro.com or from the dbx website at www.dbxpro.com or from the included CD ROM onto your computer.
Section 1 8 Getting Started DriveRack® 4800/4820 User Manual DriveRack ®
DriveRack ® Section 2 DriveRack Philosophy Presets attributes
Section 2 DriveRack Philosophy DriveRack ® 2.1 - DriveRack 4800/4820 Philosophy The philosophy of the DriveRack 4800 and 4820 revolves around the concept of two elements: Attributes and Presets. Attributes Attributes are parameters that are global like sample rate, analog I/O gain structure, or RTA microphone preamp gain. Most Attributes are found in the Utility menus.
DriveRack ® Section 3 Front Panel Operation navigation modes
Section 3 Front Panel Operation DriveRack ® The DriveRack 4800 is modal in its operation with different types of navigation depending on the mode that the unit is in. For each of the modes, navigation has been optimized to ensure speed and accuracy. 3.1 - Navigation The DriveRack 4800 uses three types of navigation to access system attributes and parameters, Matrix navigation, Scroll navigation, and Page navigation.
DriveRack ® Front Panel Operation Section 3 Scroll Navigation - This navigation is used in the Utility menus, as well as in storing, recalling and deleting presets. It is very useful for finding menu offerings that are located within another sub-menu. For example, the RTA mic pre gain is located within the Gain/Trim sub-menu of the Utility. Page Navigation - This is the easiest and most common type of navigation within the DriveRack 4800.
Section 3 Front Panel Operation DriveRack ® Edit Preset Mode - In Edit mode, access to any of the processing functions is no more than two button presses away. 1. Return to Edit mode by pressing the PRESET button. 2. To select the input or output channel that you would like to edit, press the input or output button that corresponds with that channel. 3. Once you have selected the desired channel, press the desired function button from the processing button field. 4.
DriveRack ® Front Panel Operation Section 3 5. Navigate to the location where you want to paste and press the NEXT/PASTE button. 6. To exit Copy/Paste mode and return to Edit mode, press the PRESET button. Recall Preset Mode - Any preset in the preset list can be recalled, as long as it is within the Preset Minimum and Maximum range set in the Utility menu. For more information on Preset Min/Max, see Utilities in Section 7. 1.
Section 3 Front Panel Operation DriveRack ® 1. While in Edit mode, press and hold the STORE/DELETE button for two seconds. 2. Select the preset you would like to delete. 3. Press the STORE/DELETE button to delete the preset, and once more to confirm the deletion. 4. To exit Delete and return to Edit mode without deleting the preset, press the PRESET button.
DriveRack ® Front Panel Operation Section 3 2. Use the PREV and NEXT buttons to navigate through the pages of meters. 3. To exit Meter menus and return to Edit mode, press the PRESET button. Wizard Mode - The Wizard mode will provide you with setup functions. The Wizard mode is not functional in v1.00. 1. While in Edit mode press the WIZARD/CONFIG button. 2. Use the PREV and NEXT buttons to navigate through the Wizard pages. 3.
Section 3 Front Panel Operation DriveRack ® 5. Once the desired configuration is created, press and hold the RTA/LOAD button to load the configuration. 6. To exit Configuration and return to Edit mode without making any changes to the configuration, press the PRESET button.
DriveRack ® Section 4 Software Operation module view device view venue view
Section 4 Software Operation DriveRack ® 4.1 - DriveRack Philosophy The most basic storage elements of the DriveRack 4800 and 4820 are the Attribute and the Preset. Attributes are global parameters for that unit, while Presets are snapshots of the current processing functions or modules, their location in the signal path, and their parameters (see Section 2.1 for more information about Attributes and Presets). 4.
DriveRack ® Software Operation Section 4 Module View Features While changes to the parameters within the module are instantaneous, every Module View includes the OK and Cancel buttons to either accept or reject these changes before closing the window. The Module View also provides the Recycle Icon in the upper right hand corner, allowing the window location to be reused upon opening a new module. 4.3.
Section 4 Software Operation DriveRack ® Device View Features Besides access to the processing functions, the Device View offers many other features, some of which can be found as pull-downs in the Windows Menu. Items in the Windows Menu include the File Menu, Edit Menu, Tools Menu, View Menu, and Help Menu. Additional features of the Device View include the Preset Tool, Meters, Mutes and Solos, and the RTA.
DriveRack DriveRack ®® GUI SoftwareSoftware OverviewOperation Section 4 Device View Menu In the View Menu, you can select to Dock the window in the Venue View or leave it floating. Device Help Menu In the Help Menu, you can select from Contents, Index, or Search as ways to search for topics in the Help File.
Section 4 Software Operation Meters DriveRack ® The Meters in the lower left hand corner of the Device View are real time meters, and they show the current input and output levels if the unit is online. The meters can be turned off to reduce the amount of network traffic if so desired. Mutes and Solos The Mutes and Solos are also in the bottom left hand corner of the Device Window, directly below the Meters. Mutes provide a quick way of muting DriveRack 4800 outputs.
DriveRack DriveRack ®® GUI SoftwareSoftware OverviewOperation Section 4 4.3.3 - Venue View The Venue View is the most encompassing perspective, providing a “global” view of the entire venue or system. The Venue View provides many features that make System Architect superior in the way that it provides control of an audio system. Many of these features can be found as elements within pull-down menus on the Windows Menu of the Venue View.
Section 4 GUI Software Software Operation Overview Venue Edit Menu DriveRack ® In the Edit menu, System Architect provides the ability to Undo or Redo commands as well as Cut, Copy, Paste and Delete selected units in the Venue. The Find… command lets you find a specific unit in the system either by name or ID#. Venue View Menu The View Menu (seen above) provides quick access to various menus, panels and toolbars. The Device Panel lets you add various Harman Professional devices to the Venue.
DriveRack DriveRack ®® GUI SoftwareSoftware OverviewOperation Section 4 Properties are all of the user-defined display options for any venue view, device, custom control panel, or controls in System Architect. Different items provide different editable properties, such as changing the name, background color, or background image. The Navigator window gives you the ability to view the entire venue and locate a unit’s current position, since not all units may be viewable in the current window.
Section 4 Software Operation DriveRack ® Venue Panel Menu The Panel Menu option lets you create and manage Custom Control Panels, with functions including add, remove, import, export and activate a control panel. Venue Tools Menu The Tools Menu lets you manage and control the way System Architect functions. Network Wizard locates all HiQnet devices physically connected to the network and provides the ability to change their HiQnet and communications address.
DriveRack ® Software Operation Section 4 Venue Window Menu The Window Menu manages the main Venue View window. It provides you with the following options: New adds a new Venue View to the main window. New Horizontal Group tiles the tab groups horizontally. New Vertical Group tiles the tab groups vertically. Close Current closes the selected window tab. Close All closes all window tabs except the primary Venue View.
Section 4 30 Software Operation DriveRack® 4800/4820 User Manual DriveRack ®
DriveRack ® Section 5 In Use front panel operation SOFTWARE OPERATION 31
Section 5 In Use DriveRack ® Under normal operation the most common modes are Configuration, Edit, Store and Recall Preset. The simplest way to illustrate these modes in use is by example; this will be done for both the Front Panel Navigation as well as the GUI. In our example we’ll create a Stereo Tri-Amped System with a Mono Sub, a mono send to Delayed House speakers, and Side Fill sends. 5.1 - Front Panel Operation The example begins with recalling a preset from the Preset Table: 1.
DriveRack ® In Use Section 5 2. Press the Input A button and the EQ 1 button to move to the Input Graphic EQ. 3. Turn Encoder knob #3 to link the Graphic EQs on Inputs 1 and 2. 4. Press the INSERT 2 button and turn the Encoder #1 knob to select the Compressor. 5. Turn Encoder knob #3 to link the Compressors on Inputs 1 and 2. 6. Select the Input Router on Input A by pressing the MIX/ROUTE button and Input A button.
Section 5 In Use DriveRack ® 7. Rename the Input by pressing Encoder #2 and using Encoder #1 and Encoder #2 to select characters and advance the cursor. 8. Store the name by pressing the STORE/DELETE button. 9. To change the Mid Router to a Mixer, press the Output 6 button and then the MIX/ROUTE button, then turn Encoder #1 to select Mixer. 10. While on Output 6, press the DELAY button to allocate enough Delay for these speakers. 11.
DriveRack ® In Use Section 5 With three pages per Bandpass filter set, it should be noted that there will be nine total pages in this function; these pages can either be accessed by continuing to press NEXT PAGE or by pressing the next Output Channel button. Since in a 2x5 Bandpass the first two and the next two outputs are “linked” together, both outputs 1 and 2 will be controlled together in the first three pages of the Bandpass.
Section 5 In Use DriveRack ® Now that the preset has had its configuration changed and has been edited, we can Store it: 1. Press the Store/delete button to enter Store mode. 2. Select a location for this new preset in the preset table by turning Encoder Knob #1. (A preset can either be stored over an existing preset or stored in an empty location.) 3. To name the preset, press Encoder Knob #2, then use the Encoder Knobs #1 and #2 to change the character and move the cursor through the name.
DriveRack ® In Use Section 5 2. Select the Configuration Wizard. 3. Use the links on the left side of the page to quickly jump to the desired locations. 4. Select the EQs link in the Input Section, and click the check box to link the Input Channel A and B Graphic EQs. 5. Select the DSP Inserts and Delay link in the Input Section, and in Insert 2 on Channels A and B select Compressor from the pull down menu. Now check the link button that is between them and to the right. 6.
Section 5 38 In Use DriveRack® 4800/4820 User Manual DriveRack ®
DriveRack ® Section 6 Detailed Parameters Detailed Parameters
Section 6 Detailed Parameters DriveRack ® The DriveRack 4800 and 4820 provide a wealth of processing capabilities. This processing can be broken into two distinct sections: Input Processing and Output Processing. Both the Input and Output sections offer two types of processing functions, Fixed and Insert. Fixed processing modules can be linked and/or switched with a similar type of function, but they are fixed in their location in the DSP path.
DriveRack ® Detailed Parameters Section 6 6.2 - Input Router The Input Router lets you select from any of the input sources and adjust the Master Gain. Pink Noise On/Off and Gain are also available in this module. Selected Source Switch Allows selection between the input Sources (Analog 1-4, AES/EBU 1-4, CobraNet 1-4). Pink Noise Gain fader Provides Gain control of the internal Pink Noise source (-20 to +20 dB).
Section 6 Detailed Parameters DriveRack ® 6.3 - Input Graphic EQ The DriveRack 4800/4820 provides a 31 band Graphic EQ on each input channel. This EQ offers up to +/-15dB of gain at each of the 31 ISO frequency centers. EQ On/Off switch This turns the Graphic EQ on and off. Flat/Restore switch This either flattens the EQ or restores it to its previous settings. Frequency switch This lets you select any one the 31 frequencies and is adjustable between 20Hz to 20kHz on ISO frequency centers.
DriveRack ® Detailed Parameters Section 6 6.4 - Input 9-Band Parametric EQ The DriveRack 4800 and 4820 offer a second EQ (EQ2), after the input Graphic EQ, that can be configured as either a Graphic or 9-Band Parametric EQ. The 9-Band Parametric EQ provides Frequency, Gain and Q control for each EQ band. EQ On/Off switch This turns the Parametric EQ on and off. Flat/Restore switch These buttons either flatten all bands (Flat) or restore (Restore) all bands to their previous settings.
Section 6 Detailed Parameters DriveRack ® 6.5 - Input Delay Each input channel of the DriveRack 4800 and 4820 provide up to 680 mSec of Input Delay. Delay On/Off switch This turns the input channel Delay module on and off. Delay fader This sets the amount of delay time and is adjustable in either 10 or 20 µSec steps (one sample at either 96 or 48 kHz). The Input Delay maximum is 680 mSec. Units switch This selects what the Delay is expressed in, Seconds, Feet or Meters.
DriveRack ® Detailed Parameters Section 6 6.6 - Output Mixer Each output DSP channel can be configured with either a Mixer or Router. The Output Mixer lets you mix between signals coming from the input DSP channels. Master Gain and Muting of this Mixer is also available. Channels A-D Provides gain control for each of the input channels (–inf to +20dB). Master Gain fader Provides Gain control for the Mixer module (–inf to +20dB). Master Mute switch Allows output muting of the Mixer module.
Section 6 Detailed Parameters DriveRack ® 6.7 - Output Router The Output Router lets you select from any of the input channels, adjust the Master Gain and Mute the output. Selected Source Switch Allows selection between the input channels (Channels A-D). Master Gain fader Provides Gain control for the Router module (–inf to +20dB). Master Mute switch Provides Mute control for the Router module.
DriveRack ® Detailed Parameters Section 6 6.8 - Output Bandpass Filter/Crossover The DriveRack 4800/4820 provides a Bandpass Filter on each output channel. These filters can be configured as Crossovers so you can adjust the frequency content of the adjacent output channels. Band Select switch This selects the specific band or channel to be adjusted. Highpass (HiPass) fader This adjusts the lowest frequency that the output channel will be able to achieve.
Section 6 Detailed Parameters DriveRack ® 6.9 - Output 6-Band Parametric EQ The DriveRack 4800 and 4820 offer an Output 6-Band Parametric EQ on each output channel. The 6-Band Parametric EQ provides Frequency, Gain and Q control for each of the 6 EQ bands. EQ On/Off switch This turns the Parametric EQ on and off. Flat/Restore switch These buttons either flatten all bands (Flat) or restore (Restore) all bands to their previous settings.
DriveRack ® Detailed Parameters Section 6 6.10 - Output Delay The output channels of the DriveRack 4800 and 4820 provide up to 1360 mSec of configurable Delay, this means that the Delay can be allocated to where it is needed. Delay On/Off switch This turns the output channel Delay module on and off. Delay fader This sets the amount of delay time and is adjustable in either 10 or 20 µSec steps (one sample at either 96 or 48 kHz).
Section 6 Detailed Parameters DriveRack ® 6.11 - Advanced Feedback Suppression (AFS®) Insert The DriveRack 4800/4820 offers the exclusive dbx Advanced Feedback Suppression (AFS) feedback elimination module as an Insert processing function on the Input channels. This feedback suppression algorithm reduces feedback by first finding the location of a feedback frequency and then placing a very sharp notch filter at the exact frequency that is feeding back.
DriveRack ® Detailed Parameters Type switch Section 6 The Type switch toggles the AFS function between different sensitivities and filter Q settings corresponding to the type of application. The different Types are Speech (Highest Sensitivity, Bandwidth = 1/5 octave and Q=7.25), Music Low (High Sensitivity, Bandwidth = 1/10 octave and Q=14.5), Music Medium (Medium Sensitivity, Bandwidth = 1/20 octave and Q=29), and Music High (Lowest Sensitivity, Bandwidth = 1/80 octave and Q=116).
Section 6 Detailed Parameters DriveRack ® 6.12 - Automatic Gain Control (AGC) Insert The Automatic Gain Control Insert is available in the DriveRack 4800 and 4820 in both the Input and Output Insert modules. Automatic Gain Control (or AGC) is used to keep the average level of a signal constant. This is done by selecting a desired Target output level and the Window around that Target. The AGC keeps the signal within the Window around the selected Target by slowly adjusting the gain.
DriveRack ® Detailed Parameters Section 6 Window fader This parameter adjusts the amount of variation in the output and ranges from 1 to 10dB. For most applications a Window of +/- 2 or 3 dB maintains the signal adequately. Attack fader The Attack fader adjusts how fast the AGC will increase gain after the signal drops below the Target. It ranges from 1 to 9.95 Seconds. Release fader This parameter adjusts the AGC rate of gain reduction once the signal is above the Target.
Section 6 Detailed Parameters 6.13 - AutoWarmth® Insert DriveRack ® The Fletcher-Munson Equal-Loudness curves show that the perception of low frequency signals decreases quickly with decreasing volume. The DriveRack 4800 and 4820 offer the AutoWarmth® Insert module on each output (Insert 1) to compensate for this perceived loss in low frequencies. AutoWarmth is a patent pending process that compensates for the naturally occurring perceived loss of low frequency at low signal levels.
DriveRack ® Detailed Parameters Section 6 6.14 - Compressor Insert The DriveRack 4800 and 4820 offer an Insert Compression function on both the Input and Output Inserts. This function is modeled from classic dbx Compressors such as the 160 and the 165. Compressor On/Off switch This switch turns the Compressor module on and off. OverEasy fader OverEasy is a characteristic of dbx Compressors and is essentially a “soft-knee” function that occurs at about the compression threshold.
Section 6 Detailed Parameters DriveRack ® Auto On/Off switch Auto mode dynamically sets the Attack, Hold, and Release parameters in real time, based on the incoming signal. This switch turns the Auto mode on and off. Attack fader The Attack parameter sets how quickly the compressor starts to compress the signal after it passes the threshold. The Attack can range between 0.1 mSec to 200 mSec. The Attack time is dynamically set while in Auto mode.
DriveRack ® Detailed Parameters Section 6 6.15 - De-Esser Insert The DriveRack 4800/4820 offers a De-Esser module available on the Input Inserts. This De-Esser effect is ideal for removing unwanted vocal sibilance and is based on the original dbx 902 De-Esser module. A De-Esser works by inserting a high frequency boost EQ filter in the detector path of a Compressor to “bias” the compressor, so it compresses when there is a significant amount of high frequency content in the signal passing through it.
Section 6 Detailed Parameters 6.16 - Noise Gate DriveRack ® The DriveRack 4800 and 4820 provide a Noise Gate Insert that can be placed in both the Input and/or the Output section. A Noise Gate is used to remove unwanted low-level noise in a system. The basic premise behind a Noise Gate is that gain reduction or Gating will be applied to the channel unless there is a signal that is above some Threshold. Gate On/Off switch This turns the Gate on and off. Threshold fader This sets the Threshold level.
DriveRack ® Detailed Parameters Section 6 6.17 - Limiter Insert The DriveRack 4800/4820 units offer a Limiter in the Output Insert position. A Limiter operates on the same principles as a compressor (see section 6.14) but it is designed and used more for system protection rather than musical dynamics control. Limiter On/Off switch This turns the Limiter module on and off.
Section 6 Detailed Parameters DriveRack ® Attack fader The Attack parameter sets how quickly the Limiter starts to reduce the gain of the signal after it passes the Threshold. The Attack can range between 0.1 mSec and 200 mSec. The Attack time is dynamically set while in Auto mode. Hold fader The Hold parameter is the time the 4800/4820 continues to reduce gain after the signal has dropped back below the threshold. Hold is adjustable between 0 and 500 mSec and is dynamically set while in Auto mode.
DriveRack ® Detailed Parameters Section 6 6.18 - Notch Filter Insert The 4800 and 4820 units offer 6-Band Notch Filter that can be inserted in the Input section. The Notch filter is designed to provide a significant amount of cut in very narrow frequency bandwidths to remove room resonances and other unwanted artifacts. Notch On/Off switch This turns the Notch filter on and off. Flat/Restore switch These buttons either flatten all bands (Flat) or restore (Restore) all bands to their previous settings.
Section 6 Detailed Parameters DriveRack ® 6.19 - SubHarmonic Synthesizer Insert The SubHarmonic Synthesizer module is designed to provide additional low frequency content to audio signals and is available as an Insert in both the Input and Output sections. It has been optimized to enhance audio signals in a variety of professional applications, including nightclub and dance DJ mixing, theater and film sound, music recording, live music performance and broadcasting.
DriveRack ® Section 7 Utilities UTILITIES
Section 7 Utilities DriveRack ® As stated earlier, the Utility menus contain many of the attributes of the DriveRack 4800 and 4820 devices. With the exception of Access Rights (which are stored manually), these attributes are stored instantly as they are changed. They are broken down into sub menus in both the GUI and on the unit. While these sub menus are different in their arrangement, all the same attributes are available.
DriveRack ® Utilities Section 7 7.4 - Real Time Clock The DriveRack 4800 and 4820 have an internal Real Time Clock. This clock allows the devices to load a preset based on a time schedule, for automated system changes. The real time clock is set by syncing the DriveRack device to a computer from which it extracts the clock information. The clock can also be manually set in this Utility menu.
Section 7 Utilities DriveRack ® Note: Setting up a basic Network The DriveRack 4800 and 4820 come with an included Ethernet cable. The DriveRack 4800/4820 is set up at the factory for DHCP allowing it to be assigned an IP address by a DHCP Server. If there is no DHCP Server present, the DriveRack will then default to Auto-IP, meaning that it will give itself a semirandom IP address. For more information on how to properly configure the network setting please refer to the Appendix.
DriveRack ® Appendix
DriveRack Appendix ® A.
DriveRack Appendix ® Input Insert Processing: Two selectable Insert Processing blocks per input Type: Noise Gate, Compressor, Auto Gain Control, De-Esser, Sub-Harmonic Synth, Advanced Feedback Suppression Input Delay Length: Up to 682 mSec available Routing/Mixing: 4-input mixer available at each output allowing any input to be sent or mixed to any output Output Insert Processing: Two selectable Insert Processing blocks per output Type: Noise Gate, AutoWarmth®, Compressor, Auto Gain Control, P
Appendix A.
DriveRack Appendix ® A.3 - Preset Table Preset Number Name Description This preset is completely open providing independent bandpass filters on each output. This preset provides a stereo Bi-Amp crossover with an additional set of stereo filters for Subwoofers from an Aux feed off the console. This preset is designed for a Left Center Right system with a fourth output feeding a mono Subwoofer.
DriveRack Appendix ® A.5 - Digital I/O and Clocking A.
DriveRack Appendix ® A.7 - Zone Controller Wiring and Installation Zone Controller Wiring All Zone Controllers can be wired serially or in parallel. To wire in series, each Zone Controller must have an identification number (ID) chosen using the DIP switches on the side of the controller (see diagram A). Each controller must have a unique number chosen although there may be multiple Zone Controllers controlling a single zone, or a single Zone Controller that controls multiple outputs.
DriveRack Appendix ® Diagram A Diagram B ID# 1 80-1342-A RJ45 CONNECT ONLY TO ZONE CONTROLLER INPUT . RJ45 IEC60065 IEC60065 CONNECT ONLY TO ZONE CONTROLLER INPUT .
DriveRack Appendix ® Cable Specification: EIA/TIA 568A Standard (pin to pin) 24 AWG wire RJ-45 (8-Position) 1 White/Green 2 Green White/Orange Blue White/Blue Orange White/Brown Brown 3 4 5 6 7 8 Diagram A RJ-45 (8-Position) 1 -VREF 2 -Zone 1 3 -Zone 2 4 -Zone 3 5 -Zone 4 6 -Zone 5 7 -Zone 6 8 -GND Diagram B Diagram C DriveRack® 4800/4820 User Manual 75
DriveRack Appendix ® A.
DriveRack Appendix ® A.9 - Factory Reset Factory Reset Information In the event that a reset is required, the DriveRack 4800/4820 offers you the option of performing a “Hard” or “Soft” Factory Reset. Power-Up Button Functions All Power-Up Functions will use the MUTE 1 through MUTE 8 buttons. All Power-Up Functions require a button(s) to be pressed and held as the unit power is turned on. A.
DriveRack Appendix ® A.10 - Ethernet Networking This section of the appendix provides a step-by-step guide on how to properly connect the DriveRack 4800 or 4820 to a Local Area Network (LAN) for several different network architectures. The first topology is a simple direct connection using the provided Ethernet cable. The second method describes how to connect several DriveRack units to create an isolated network using an Ethernet switch with DHCP and configure them with the System Architect GUI.
DriveRack Appendix ® DHCP (Dynamic Host Configuration Protocol) This is a protocol for automatically assigning IP addresses to devices on a network. With dynamic (DHCP) addressing, a device might have a different IP address every time it connects to the network. DHCP relies on a DHCP server to assign and manage IP addresses. A.10.2 - Connecting the Computer Directly to the DriveRack Assumptions: • Using Microsoft Windows XP or 2000. • Computer has a working Ethernet network adapter.
DriveRack Appendix ® NOTE: The following steps will overwrite these settings, so you will need to keep this information to restore your network settings. e. Select the ‘Obtain an IP address automatically’ radio button. f. (XP Only) Click on the Alternate Configuration tab and make sure that ‘Automatic private IP address’ is selected. g. Click OK in each window to close them. h. After about 1-2 minutes your computer will configure itself with the correct IP settings.
DriveRack Appendix ® units utilizes IP broadcast packets. These packets will not travel through internet routers and even some high end core switches. In a larger more complex network, proxy is used to tell the software where on the network to look for the 4800/4820 devices. There only needs to be one proxy setup for each group of units that are on the same local network.
DriveRack Appendix ® • If the proxy link initially fails to connect, the user must go offline and then go back online before the proxy connection will be re-established. • Firewall Considerations: The 4800/4820 uses port 3804 (udp and tcp) to communicate with the System Architect software. Make sure that you configure your firewalls correctly so that data sent to and from this port number can traverse your network. A.10.
DriveRack Appendix ® A.10.
DriveRack Appendix ® All advertising materials mentioning features or use of this software must display the following acknowledgement: This product includes software developed by the University of California, Lawrence Berkeley Laboratory. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
DriveRack ® Appendix DriveRack® 4800/4820 User Manual 85
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.
