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DriveRack

®

4800/4820 User Manual

®

The DriveRack 4800/4820 provides a Bandpass Filter on each output channel. These filters can be con-
figured 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. The range of this control
is between “Out” to 20kHz, where “Out” denotes that the filter is not in the signal path and is not active.

Lowpass (LoPass) fader

This adjusts the highest frequency that the output channel will be able to achieve. The range of this con-
trol is between 20 Hz and “Out”, where “Out” denotes that the filter is not in the signal path and is not
active.

Gain fader

This sets the gain of the Crossover output and is adjustable between -Inf and 20dB.

Lowpass and Highpass Slope switch

This selects the desired slope and filter topology. It offers the following filter topologies and slopes:

Bessel 6, 12, 18, 24, 36, 48 dB/Octave
Butterworth 6, 12, 18, 24, 36, 48 dB/Octave
Likwitz-Riley 12, 24, 36, 48 dB/Octave

Polarity switch

This switches between Positive (+) and Negative (-) Polarity.

Phase switch

This switch makes the Phase adjustment available on the GUI; it is only available on the GUI.

Phase fader

This fader allows adjustment of the Phase in 5 degree steps and can be adjusted from 0 to -175 degrees.

Show Composite button

Only available on the GUI, this button provides a composite view of the Output Parametric and Bandpass
filtering on the channel. If Window Recycling is turned on it is a convenient way to “jump” back and forth
between the Composite and filter views (Bandpass and Parametric) while making changes.

6.8 - Output Bandpass Filter/Crossover

Detailed Parameters

Section 6

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Содержание DriveRack 4820

Страница 1: ...U Us se er r M Ma an nu ua al l 4800 4820 CompleteEqualization LoudspeakerManagementSystem...

Страница 2: ...fire or electric shock refer servicing to qualified service per sonnel or equivalent This Equipment is intended for rack mount use only SAFETY INSTRUCTIONS NOTICE FOR CUSTOMERS IF YOUR UNIT IS EQUIPP...

Страница 3: ...desired operation Operation of this unit within significant electromagnetic fields should be avoided use only shielded interconnecting cables DECLARATION OF CONFORMITY Manufacturer s Name dbx Professi...

Страница 4: ...In Use 5 1 Front Panel Operation 32 5 2 GUI Operation 36 Section 6 Detailed Parameters 6 1 Input Mixer 40 6 2 Input Router 41 6 3 Input Graphic EQ 42 6 4 Input 9 Band Parametric EQ 43 6 5 Input Delay...

Страница 5: ...ory Reset 77 A 10 Ethernet Networking 78 A 10 1 Overview of TCP IP Address 78 A 10 2 Connecting the Computer Directly to the DriveRack 79 A 10 3 Setup of a Simple Isolated Ethernet Network Using DHCP...

Страница 6: ...DriveRack...

Страница 7: ...FEATURES CUSTOMER SERVICE INFO WARRANTY INFO INTRODUCTION DriveRack Introduction...

Страница 8: ...h a tamper proof front panel for installation use Some of the many features of the 4800 and 4820 include 48 and 96 kHz operation Color 1 4 VGA 320x240 Display 4800 4 analog and AES EBU digital inputs...

Страница 9: ...st 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 pur chase dat...

Страница 10: ...Introduction DriveRack 4800 4820 User Manual DriveRack iv...

Страница 11: ...REAR PANEL FRONT PANEL SOFTWARE INSTALLATION Getting Started Section 1 DriveRack...

Страница 12: ...lated 5 Analog Output Channels 1 8 XLR The eight analog outputs of the 4800 and 4820 are electronically balanced and the signals sent to these out puts are analog copies of the AES EBU outputs An opti...

Страница 13: ...of the DriveRack 4800 allow direct access to all editing and navigating functions of the DriveRack 4800 The functions of the aforementioned buttons are as follows P PR RE EV V is used to navigate back...

Страница 14: ...AR RD D is used to enter the Wizard section Pressing and holding the WIZARD button enters Configuration Mode where changes to the preset configuration can be made R RT TA A is used to view the Real Ti...

Страница 15: ...This balanced XLR input is used for the connection of an RTA microphone which may be used with the Auto EQ function in the Wizard 48V phantom power is always engaged on this connector 2 Serial PC Conn...

Страница 16: ...n the signal chain from within a single application It enables flagship products from best in class brands to act as one collective consciousness and makes real the benefits only a truly unified syste...

Страница 17: ...t www harmanpro com or from the dbx website at www dbxpro com or from the included CD ROM onto your computer Once the software setup is downloaded double click on the file named System Architect setup...

Страница 18: ...Getting Started 8 Section 1 DriveRack DriveRack 4800 4820 User Manual...

Страница 19: ...PRESETS ATTRIBUTES DriveRack Philosophy Section 2 DriveRack...

Страница 20: ...e includes insertable functions that can be selected from a list in four positions this list includes Feedback Suppression Compression Noise Gate Limiter Notch Filter Auto Gain Control AutoWarmth etc...

Страница 21: ...NAVIGATION MODES Front Panel Operation Section 3 DriveRack...

Страница 22: ...where a combination of Matrix navigation and Page navi gation are used to access individual parameters in the various processing modules Matrix Navigation This refers to moving around the matrix field...

Страница 23: ...the main preset screen that shows the signal path through the unit and all the cur rent processing functions Additionally this main preset screen in Edit mode is the safe or home page all changes to t...

Страница 24: ...Encoder Knobs below the buttons to adjust the value Copy Paste Mode Copy Paste mode lets you navigate through the processing matrix and select modules to copy and paste It is only available from the p...

Страница 25: ...50 Presets 1 While in Edit mode press the STORE button 2 To store the preset with the same name and in the same location press STORE again and then one more time to confirm storing of this preset 3 T...

Страница 26: ...including Sample Rate Analog I O Gain Structure etc 1 While in Edit mode press the UTILITY METER button 2 Scroll through the various Utility menus using Encoder Knob 1 Press the knob to enter the desi...

Страница 27: ...aking any changes press the PRESET button Configuration Mode The DriveRack 4800 is configurable from the front panel through the Configuration mode This mode lets you create a signal path and a combin...

Страница 28: ...ed configuration is created press and hold the RTA LOAD button to load the configura tion 6 To exit Configuration and return to Edit mode without making any changes to the configuration press the PRES...

Страница 29: ...MODULEVIEW DEVICEVIEW VENUEVIEW Software Operation Section 4 DriveRack...

Страница 30: ...ews or Windows used interchangeably Nearly every function of the DriveRack 4800 and or 4820 can be accessed from one of three windows the Venue View the Device Window and the Module Window These views...

Страница 31: ...Recycle Icon in the upper right hand corner allowing the window location to be reused upon opening a new module The DriveRack Device View seen below is accessed by double clicking the device icons in...

Страница 32: ...as the Preset Device Tools Menu In the Device Tools Menu you can access the Configuration Wizard Zone Controller Wizard Utilities and Manage Roles The Configuration Wizard is central in the operation...

Страница 33: ...tical Error Count IP address etc The Device Locate On Off is a handy feature for finding devices in a larger system The Locate function flashes the front panel display The About DriveRack menu item pr...

Страница 34: ...utes 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 The Solos employ th...

Страница 35: ...o the Help menu found on the Windows Menu of the Venue View Venue File Menu Beginning with the File Menu the Venue View lets you save and open Venue Files that are complete copies of the entire system...

Страница 36: ...t is not currently part of the venue it can be selected and dragged over into the venue view The E Ev ve en nt t L Lo og g shows system activity that has occurred within System Architect and on any Hi...

Страница 37: ...s are also available from the View Menu including the Alignment toolbar the Window Sets tool bar and the Zoom toolbar The Alignment toolbar provides tools that can be used in aligning the various uni...

Страница 38: ...e V Ve en nu ue e automatically searches for devices and adds them to your venue G Gr ro ou up pi in ng g W Wi iz za ar rd d creates a custom control panel with channels from multiple devices linked...

Страница 39: ...al l G Gr ro ou up p tiles the tab groups vertically C Cl lo os se e C Cu ur rr re en nt t closes the selected window tab C Cl lo os se e A Al ll l closes all window tabs except the primary Venue Vie...

Страница 40: ...Software Operation 30 Section 4 DriveRack DriveRack 4800 4820 User Manual...

Страница 41: ...FRONT PANEL OPERATION SOFTWARE OPERATION In Use Section 5 DriveRack...

Страница 42: ...ay with Sub from the preset table by turning the Encoder 1 knob until Preset 8 appears on the display 4 Press and hold the RTA LOAD button to load the preset This 2x5 preset is a good starting point b...

Страница 43: ...c 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 In...

Страница 44: ...e configuration loads the change is now active and audio can be passed through this new configu ration Now we ll edit the processing function parameters in the Bandpass filter Compressor and Graphic E...

Страница 45: ...nd 2 by pressing the INPUT CHANNEL A button and the EQ 1 button 5 Edit the Graphic EQ parameters using the NEXT and PREV buttons to move between the pages Once again Input Channels A and B are linked...

Страница 46: ...et 5 If you want to store an altered preset over the previous preset in the same location you can press the STORE DELETE button three times in succession 6 Once the preset is stored you re returned to...

Страница 47: ...at our configuration is complete we can Edit the parameters in the Bandpass filter Compressor and Graphic EQ as well as create the correct mono mix for our Delayed speakers 1 Double click the linked I...

Страница 48: ...In Use 38 Section 5 DriveRack DriveRack 4800 4820 User Manual...

Страница 49: ...DETAILED PARAMETERS Detailed Parameters Section 6 DriveRack...

Страница 50: ...in Control Like the Fixed functions they too can be linked between adjacent channels if there is the same type of function in the other channels The following section outlines each of the Fixed proces...

Страница 51: ...e 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 Pink N...

Страница 52: ...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 adj...

Страница 53: ...and 9 are selectable between Bell and Shelf Filter Select switch This allows selection of the Parametric EQ filter to be adjusted Filter On Off switch This turns the Selected 1 9 parametric EQ on and...

Страница 54: ...elay module on and off Delay fader This sets the amount of delay time and is adjustable in either 10 or 20 Sec steps one sample at either 96 or 48 kHz The Input Delay maximum is 680 mSec Units switch...

Страница 55: ...ster 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 2...

Страница 56: ...ter 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 switc...

Страница 57: ...ain of the Crossover output and is adjustable between Inf and 20dB Lowpass and Highpass Slope switch This selects the desired slope and filter topology It offers the following filter topologies and sl...

Страница 58: ...enient way to jump back and forth between the Composite and filter views Bandpass and Parametric while making changes Filter Select switch This allows selection of the Parametric EQ filter to be adjus...

Страница 59: ...eeded 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 Sec steps one sample at either 96 or...

Страница 60: ...d Live mode Fixed mode sets Fixed filters and Live mode sets Live filters Fixed filters will remain in place until they are reset Live filters will either remain until they are needed for another feed...

Страница 61: ...the bass region and is adjustable between Off 11 7 410 1Hz Sensitivity fader The AFS algorithm is very effective when the audio has a nominal level of 0 dBu However if the audio is too low in level th...

Страница 62: ...is in The T yellow indicates the signal is within the Window A red indicates the signal is above the target window and a green indicates the AGC is adding Gain and is at or below the window When the T...

Страница 63: ...of its slow nature a fast Limiter has been added to the AGC to protect the system from sudden transients The Limiter threshold can be set from the top of the AGC Window up to 0dBFS Limiter Auto On Of...

Страница 64: ...there is no processing The Threshold meter will light green when the threshold has been crossed and AutoWarmth is active The Threshold range is between 60 and 0 dBFS To set the Threshold turn AutoWar...

Страница 65: ...nal level at which the unit begins to compress the signal If the level is set to 10 dBFS then any signal larger than 10 dBFS is compressed and any signal that has a level that is lower than 10dBFS is...

Страница 66: ...r is the time the 4800 4820 remains in compression after the signal has dropped back below the threshold Hold is adjustable between 0 to 500 mSec and is dynamically set while in Auto mode Release fade...

Страница 67: ...pass mode the Width can be set so the De Esser will ignore frequencies above 12 kHz while still removing unwanted sibilance in the neighborhood of 6 kHz De Esser On Off switch This turns the De Esser...

Страница 68: ...4 is selected a signal that is 1dB below the threshold will be reduced in gain so that it becomes 4dB below the threshold The Ratio is adjustable between 1 1 and 1 15 Max Attenuation fader The Maximum...

Страница 69: ...is reduced in gain The range of the Threshold fader is 60 to 0dBFS PeakStopPlus On Off switch This switch engages PeakStopPlus and changes the Limiter from an RMS Root Mean Squared or aver aging limi...

Страница 70: ...ack below the threshold Hold is adjustable between 0 and 500 mSec and is dynamically set while in Auto mode Release fader The Release parameter is the rate at which the Limiter comes out of gain reduc...

Страница 71: ...at or restore Restore all bands to their previous settings Filter Select switch This selects the Parametric EQ filter to be adjusted Filter On Off switch This turns the Selected 1 9 parametric EQ on a...

Страница 72: ...of synthesis to provide the best combination of frequency content and control SubHarmonic Synth On Off switch This turns the SubHarmonic Synth module on and off SubHarmonic Level fader This parameter...

Страница 73: ...UTILITIES Section 7 Utilities DriveRack...

Страница 74: ...attributes let you maximize the gain structure of the sys tem by setting all the devices in the system so they clip at the same point The DriveRack units come from the factory with the maximum input a...

Страница 75: ...le Access Rights for both Processing and Device Functions must be stored by pressing the STORE button while in that Access Rights menu Due to the possible complexity users and their passwords must be...

Страница 76: ...e 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 semi rando...

Страница 77: ...DriveRack Appendix...

Страница 78: ...pe IV Conversion System Dynamic Range 113 dB unweighted 116 dB A weighted Type IV dynamic range 126 dB with transient material A weighted 22 kHz BW 123 dB with transient material unweighted 22 kHz BW...

Страница 79: ...dback Suppression X Over Filter Configs 1x1 1x2 1x3 1x4 1x5 1x6 1x7 1x8 2x2 2x3 2x4 2x5 2x6 2x7 2x8 3x3 3x4 3x6 3x7 4x4 4x5 4x8 Types Bessel 6 12 18 and 24 dB per Octave Butterworth 6 12 18 and 24 dB...

Страница 80: ...Appendix A 2 Block Diagram DriveRack DriveRack 4800 4820 User Manual 70...

Страница 81: ...n o m d e p m a i b r u o f r o f s i t e s e r p s i h T y a w 4 U B E S E A T S 5 U B E S E A n o e l o s n o c l a t i g i d a m o r f l a n g i s a t p e c c a o t d e n g i s e d s i t e s e r p...

Страница 82: ...Appendix A 6 Word Clock Termination A 5 Digital I O and Clocking Clock Source 4800 4820 4800 4820 4800 4820 75 Coaxial Cable BNC T 75 BNC Terminator DriveRack DriveRack 4800 4820 User Manual 72...

Страница 83: ...o create ID 7 12 add 6 to the ID selected on the back of the ZC For example to get an ID of 10 connect to the bottom ZC Input 7 12 and set the ID to 4 Zone Controller Installation The installation of...

Страница 84: ...J45 CONNECT ONLY TO ZONE CONTROLLER I N P U T IEC60065 UL 6500 80 1342 A RJ45 CONNECT ONLY TO ZONE CONTROLLER I N P U T IEC60065 UL 6500 80 1342 A ID 1 ID 4 Diagram B Diagram C DriveRack DriveRack 480...

Страница 85: ...am C RJ 45 8 Position RJ 45 8 Position Orange White Blue Green Blue White Brown Brown VREF Zone 1 Zone 2 Zone 4 Zone 3 Zone 5 Zone 6 GND 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 White Green White Orange Cable...

Страница 86: ...Appendix DriveRack DriveRack 4800 4820 User Manual 76 A 8 ZC 4 Wiring Diagram...

Страница 87: ...til the following message appears HARD RESET Yes MUTE 7 No MUTE 8 Pressing the MUTE 7 button will perform a System Reset resetting all device Presets and Attributes Pressing MUTE 8 will abort the Fact...

Страница 88: ...portion of this section for more information Factory defaults for the Internet Protocol IP settings for the 4800 4820 are as follows IP Address 169 254 2 2 Subnet Mask 255 255 0 0 Gateway 0 0 0 0 DHC...

Страница 89: ...ge the IP address of the device so it can be on the same network as your computer Windows networking in its default configuration will automatically configure your computer s IP setting to something i...

Страница 90: ...System Architect software and one or more 4800 4820 units 1 Connect the PC and any 4800 4820 to the switch hub using normal Ethernet cables 2 Apply power to all 4800 4820s and wait for them to boot 3...

Страница 91: ...d real world connection such as a leased line a VPN uses virtual connections through the public network The advan tage to a VPN is that your computer can be virtually connected to a local network even...

Страница 92: ...esent Check the following connections 4800 4820 device If there is a valid connection on the 4800 4820 you will see a solid green LED PC running the System Architect software Hub Switch if used If you...

Страница 93: ...d copyrights General 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 r...

Страница 94: ...SUBSTITUTE GOODS OR SER VICES LOSS OF USE DATA OR PROFITS OR BUSINESS INTERRUPTION HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY WHETHER IN CONTRACT STRICT LIABILITY OR TORT INCLUDING NEGLIGENCE OR O...

Страница 95: ...Appendix DriveRack DriveRack 4800 4820 User Manual 85...

Страница 96: ...andy 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 A Harman Inter...

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