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®
Complete Equalization & Loudspeaker Management System
4800/4820
U Us se er r M Ma an nu ua al l
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IMPORTANT SAFETY INSTRUCTIONS WARNING FOR YOUR PROTECTION CAUTION READ THESE INSTRUCTIONS: RISK OF ELECTRIC SHOCK DO NOT OPEN KEEP THESE INSTRUCTIONS ATTENTION: RISQUE DE CHOC ELECTRIQUE - NE PAS OUVRIR WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE HEED ALL WARNINGS FOLLOW ALL INSTRUCTIONS The symbols shown above are internationally accepted symbols that warn of potential hazards THE APPARATUS SHALL NOT BE EXPOSED TO DRIPPING OR SPLASHIN
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IMPORTANT SAFETY INSTRUCTIONS U.K. MAINS PLUG WARNING A molded mains plug that has been cut off from the cord is unsafe. Discard the mains plug at a suitable disposal facili- ELECTROMAGNETIC ty. NEVER UNDER ANY CIRCUMSTANCES SHOULD YOU INSERT A DAMAGED OR CUT MAINS PLUG INTO A 13 AMP POWER SOCKET. COMPATIBILITY Do not use the mains plug without the fuse cover in place. Replacement fuse covers can be obtained from your local This unit conforms to the Product retailer. Replacement fuses are 13
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® Table of Contents DriveRack Introduction Section 6 - Detailed Parameters 0.1 DriveRack 4800/4820 Features .............................ii 6.1 Input Mixer.........................................................40 0.2 Service Contact Info.............................................iii 6.2 Input Router .......................................................41 0.3 Warranty ..............................................................iii 6.3 Input Graphic EQ......................................
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® Table of Contents DriveRack 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.7 Zone Controller Wiring and
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® DriveRack ®
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® Introduction DriveRack INTRODUCTION FEATURES CUSTOMER SERVICE INFO WARRANTY INFO
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® Introduction DriveRack ® ® Congratulations on your purchase of the dbx DriveRack 4800 or 4820 system processor! Designed to INTRODUCTION 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. From the pow- erful 96kHz processing engine and advanced processing algorithms, to the VGA display and direct access Processing and Channel buttons, the DriveRack 4800 pro
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® Introduction DriveRack 0.2 - Service Contact Info If you require technical support, contact dbx Customer Service. Be prepared to accurately describe the prob- lem. 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. Make sure you have correctly
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® Introduction DriveRack ® ® DriveRack 4800/4820 User Manual iv
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® Section 1 DriveRack Getting Started REAR PANEL FRONT PANEL SOFTWARE INSTALLATION ®
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® Getting Started Section 1 DriveRack 1.1 - Rear Panel 4800/4820 1 23 4 5 6 89 7 10 11 1. IEC Power Cord Receptacle The 4800 and 4820 come with a power supply that will accept voltages ranging from 100V-240V at fre- quencies 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. Digital AES/EBU Output Channels 1-8 (XLR) The ei
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® Getting Started Section 1 DriveRack 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 con- trollers. 10.Word Clock BNC Connection This connection allows the DriveRack 4800 or 4820 to lock to a master system clock. It is not ter- minated. 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
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® Getting Started Section 1 DriveRack O OU UT TP PU UT T is used to select and/or enter the Input and Output setup module. R RO OU UT TE E/ /M MI IX X is used to select and/or enter either the Input or Output Router or Mixer module. I IN NS SE ER RT T 1 1 is used to select and/or enter the first Insert function in either the Input or Output. I IN NS SE ER RT T 2 2 is used to select and/or enter the second Insert function in either the Input or Output. D DE EL LA AY Y is used to select and/o
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® Getting Started Section 1 DriveRack 9 9.. S St ta at tu us s L LE ED Ds s This cluster of four LEDs indicate the following functions: C CL LI IP P - indicates either A/D, D/A, or DSP clipping. S SY YN NC C - indicates DSP syncing to an internal clock, AES/EBU, CobraNet, or Wordclock input. R RS S- -2 23 32 2 - indicates PC connection via RS-232. L LI IN NK K/ /A AC CT T - indicates connection to and/or activity on an Ethernet network. 10. Output Adjustment/Mute Knobs 1-8 The Output Trim/Mute
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® Getting Started Section 1 DriveRack C CL LI IP P - indicates either A/D, D/A, or DSP clipping. S SY YN NC C - indicates DSP syncing to an internal clock, AES/EBU or Wordclock input. R RS S- -2 23 32 2 - indicates PC connection via RS-232. L LI IN NK K/ /A AC CT T - 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
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® Getting Started Section 1 DriveRack 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 comput
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® Getting Started Section 1 DriveRack ® ® DriveRack 4800/4820 User Manual 8
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® Section 2 DriveRack DriveRack Philosophy PRESETS ATTRIBUTES ®
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® DriveRack Philosophy Section 2 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 pre- amp gain. Most Attributes are found in the Utility menus. Depending on the function, Attributes are either stored instantly as they are changed or upon exiting the Utility menus, and
