dbx Pro 480 User Manual

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Complete Equalization & Loudspeaker Management System

480

481

482

480R

®

User Manual

IMPORTANT SAFETY INSTRUCTIONS

C A U T I O N

RIS K O F ELECTRI C SHOCK

D O NO T OPEN

ATTENTION: RISQU E D E CHO C ELECTRIQU E - N E PA S OUVRIR

WARNING: T O REDUC E TH E RIS K O F FIR E O R ELECTRIC SHOC K D O NO T EXPOS E THI S EQUIPMEN T T O RAI N O R MOISTURE

The symbols shown above are internationally accepted symbols that warn of potential hazards with electrical products. The lightning flash with arrowpoint in an equilateral triangle means that there are dangerous voltages present within the unit. The exclamation point in an equilateral triangle indicates that it is necessary for the user to refer to the owner’s manual.

These symbols warn that there are no user serviceable parts inside the unit. Do not open the unit. Do not attempt to service the unit yourself. Refer all servicing to qualified personnel. Opening the chassis for any reason will void the manufacturer’s warranty. Do not get the unit wet. If liquid is spilled on the unit, shut it off immediately and take it to a dealer for service. Disconnect the unit during storms to prevent damage.

SAFETY INSTRUCTIONS

NOTICE FOR CUSTOMERS IF YOUR UNIT IS EQUIPPED WITH A POWER CORD.

WARNING: THIS APPLIANCE MUST BE EARTHED.

CAUTION: EQUIPMENT IS NOT DISCONNECTED FROM MAINS WHEN SWITCH IS IN THE OFF POSITION

The cores in the mains lead are coloured in accordance with the following code:

GREEN and YELLOW - Earth

BLUE - Neutral

BROWN - Live

As colours of the cores in the mains lead of this appliance may not correspond with the coloured markings identifying the terminals in your plug, proceed as follows:

•The core which is coloured green and yellow must be connected to the terminal in the plug marked with the letter E, or with the earth symbol, or coloured green, or green and yellow.

•The core which is coloured blue must be connected to the terminal marked N or coloured black.

•The core which is coloured brown must be connected to the terminal marked L or coloured red.

This equipment may require the use of a different line cord, attachment plug, or both, depending on the available power source at installation. If the attachment plug needs to be changed, refer servicing to qualified service personnel who should refer to the table below. The green/yellow wire shall be connected directly to the units chassis.

	CONDUCTOR		WIRE COLOR
			Normal	Alt
	L	LIVE	BROWN	BLACK
	N	NEUTRAL	BLUE	WHITE
	E	EARTH GND	GREEN/YEL	GREEN

WARNING: If the ground is defeated, certain fault conditions in the unit or in the system to which it is connected can result in full line voltage between chassis and earth ground. Severe injury or death can then result if the chassis and earth ground are touched simultaneously.

WARNING FOR YOUR PROTECTION PLEASE READ THE FOLLOWING:

KEEP THESE INSTRUCTIONS

HEED ALL WARNINGS

FOLLOW ALL INSTRUCTIONS

CLEAN ONLY WITH A DAMP CLOTH.

DO NOT BLOCK ANY OF THE VENTILATION OPENINGS. INSTALL IN ACCORDANCE WITH THE MANUFACTURERS INSTRUCTIONS.

DO NOT INSTALL NEAR ANY HEAT SOURCES SUCH AS RADIATORS, HEAT REGISTERS, STOVES; OR OTHER APPARATUS (INCLUDING AMPLIFIERS) THAT PRODUCE HEAT.

ONLY USE ATTACHMENTS/ACCESSORIES SPECIFIED BY THE MANUFACTURER.

UNPLUG THIS APPARATUS DURING LIGHTNING STORMS OR WHEN UNUSED FOR LONG PERIODS OF TIME.

WATER AND MOISTURE: Appliance should not be used near water (e.g. near a bathtub, washbowl, kitchen sink, laundry tub, in a wet basement, or near a swimming pool, etc). Care should be taken so that objects do not fall and liquids are not spilled into the enclosure through openings.

POWER SOURCES: The appliance should be connected to a power supply only of the type described in the operating instructions or as marked on the appliance.

GROUNDING OR POLARIZATION: Precautions should be taken so that the grounding or polarization means of an appliance is not defeated.

POWER CORD PROTECTION: Power supply cords should be routed so that they are not likely to be walked on or pinched by items placed upon or against them, paying particular attention to cords at plugs, convenience receptacles, and the point where they exit from the appliance.

SERVICING: To reduce the risk of fire or electric shock, the user should not attempt to service the appliance beyond that described in the operating instructions. All other servicing should be referred to qualified service personnel.

FOR UNITS EQUIPPED WITH EXTERNALLY ACCESSIBLE FUSE RECEPTACLE: Replace fuse with same type and rating only.

MULTIPLE-INPUT VOLTAGE: This equipment may require the use of a different line cord, attachment plug, or both, depending on the available power source at installation. Connect this equipment only to the power source indicated on the equipment rear panel. To reduce the risk of fire or electric shock, refer servicing to qualified service personnel or equivalent.

IMPORTANT SAFETY INSTRUCTIONS

LITHIUM BATTERY

WARNING

CAUTION!

This product may contain a lithium battery.There is danger of explosion if the battery is incorrectly replaced. Replace only with an Eveready CR 2032 or equivalent. Make sure the battery is installed with the correct polarity. Discard used batteries according to manufacturer’s instructions.

ADVARSEL!

Lithiumbatteri - Eksplosjonsfare.Ved utskifting benyttes kun batteri som anbefalt av apparatfabrikanten. Brukt batteri returneres apparatleverandøren.

ADVARSEL!

Lithiumbatteri - Eksplosionsfare ved fejlagtig håndtering. Udskiftning må kun ske med batteri av samme fabrikat og type. Levér det brugte batteri tilbage til leverandøren.

VAROITUS!

Paristo voi räjähtää, jos se on virheellisesti asennettu.Vaihda paristo ainoastaan laitevalmistajan suosittelemaan tyyppin. Hävitä käytetty paristo valmistajan ohjeiden mukaisesti.

VARNING!

Explosionsfara vid felaktigt batteribyte. Använd samma batterityp eller en ekvivalent typ som rekommenderas av apparattillverkaren. Kassera använt batteri enligt fabrikantens instruktion.

ELECTROMAGNETIC

COMPATIBILITY

This unit conforms to the Product Specifications noted on the Declaration of Conformity. Operation is subject to the following two conditions:

•this 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.

• use only shielded interconnecting cables.

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 facility.

NEVER UNDER ANY CIRCUMSTANCES SHOULD YOU INSERT A DAMAGED OR CUT MAINS PLUG INTO A 13 AMP POWER SOCKET. Do not use the mains plug without the fuse cover in place. Replacement fuse covers can be obtained from your local retailer. Replacement fuses are 13 amps and MUST be ASTA approved to BS1362.

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 DriveRack™ 480,481 and 482
Product option:		None
conforms to the following Product Specifications:
Safety:	EN 60065 (1993)
	IEC 60065 (1998)
	CAN/CSA E60065-99
EMC:	EN 55013 (1990)
	EN 55020 (1991)

Supplementary Information:

The product herewith complies with the requirements of the Low Voltage Directive 73/23/EEC and the EMC Directive 89/336/EEC as amended by Directive 93/68/EEC.

dbx Professional Products Vice-President of Engineering 8760 S. Sandy Parkway Sandy, Utah 84070, USA March 15, 2000

European Contact: Your Local dbx Sales and Service Office or Harman Music Group

8760 South Sandy Parkway Sandy, Utah 84070 USA

	PH: [phone] FX: [phone]
Manufacturer’s Name:			dbx Professional Products
Manufacturer’s Address:			8760 S. Sandy Parkway
			Sandy, Utah 84070, USA
	declares that the product:
	Product name: dbx DriveRack™ 480P and 480R
	Product option:		None
	conforms to the following Product Specifications:
	Safety:	EN 60065 (1993)
		IEC 60065 (1998)
		CAN/CSA E60065-99
	EMC:	EN 55013 (1990)
		EN 55020 (1991)

Supplementary Information:

The product herewith complies with the requirements of the Low Voltage Directive 73/23/EEC and the EMC Directive 89/336/EEC as amended by Directive 93/68/EEC.

dbx Professional Products Vice-President of Engineering 8760 S. Sandy Parkway Sandy, Utah 84070, USA April 21, 2000

European Contact: Your Local dbx Sales and Service Office or Harman Music Group

8760 South Sandy Parkway Sandy, Utah 84070 USA PH: [phone] FX: [phone]

DriveRack™

Table of Contents

Introduction
1.1	Defining the DriveRack™ System ...................	ii
1.2	Service Contact Info ........................................	iv
1.3	Warranty...........................................................	iv
Section 1 - Getting Started
1.1	Rear Panel Connections (480) .........................	2
1.2	Front Panel (480) ............................................	3
1.3	Rear Panel Connections (481) .........................	4
1.4	Front Panel (481) ............................................	5
1.5	Rear Panel Connections (482) .........................	6
1.6	Front Panel (482) ............................................	7

Section 4 - Detailed Parameters

4.1	Input Routing..................................................	32
4.2.1 Pre-Crossover EQ (31 Band Graphic)........		32
4.2.2 Pre-Crossover EQ (31 Band Graphic)
Show and House ..................................................		33
4.2.3 Pre-Crossover EQ (9-Band Parametric)......		33
4.2.4 RTA ...............................................................		34
4.3	Notch Filter .....................................................	35
4.4	Delay (Pre-Crossover) ....................................	35
4.5	Crossovers.......................................................	35
4.6	Post-Crossover Parametric EQ .......................	39
4.7	Compressor/Limiter (Dynamics)....................	40
4.8	Speaker Alignment Delay ..............................	41
4.9	Output Routing...............................................	42

Section 2 - Editing Functions

2.1	Basic Navigation Modes.................................	10
2.2	Button Array Overview ..................................	10
2.3	Parameter Knob Encoders Coarse/Fine ........	12
2.4	(Horizontal-Vertical nav) ................................	12
2.5	Navigating the EQ Sections ...........................	13
2.6	Navigating the Crossover Section..................	14
2.7	Navigating the RTA Section ...........................	15
2.8	Navigating the Delay Section ........................	16
2.9	Navigating the Dynamics Section..................	17
2.10 Navigating the Other Section.......................		18
2.11 Navigating the Utility Section ......................		19

Section 3 - Configuring the

DriveRack

3.1	Program Definition.........................................	22
3.2	Navigating Factory Programs.........................	22
3.3	Editing Factory Programs...............................	24
3.4	Saving Factory Program Changes..................	24
3.5	Creating a User Configuration .......................	26
3.6	Linking Modules .............................................	28
3.7	Selecting and Moving Crossovers..................	29
3.8	Saving Configuration Changes.......................	30

Section 5 - Storing Changes

5.1	Saving Factory Program Changes..................	44
5.2	Saving Configuration Changes.......................	46

Section 6 - Utilities

6.1	Network ID .....................................................		48
6.2	Security Levels ................................................		48
6.3	Security Passwords .........................................		49
6.4	Entering Security Password ...........................		50
6.5	Program List....................................................		51
6.6	Program Change Mode ..................................		52
6.7	Contrast Adjustment .......................................		53
6.8	PC COMM Mode ............................................		53
6.9	Power-up (Mutes/Saved) ...............................		54
6.10		MIDI Channels..............................................	54
6.11		MIDI Program Dumps..................................	54
6.12		SYSEX Dump ................................................	55
6.13		Setup SYSEX Data ........................................	55
6.14		Mic Pre Set up ..............................................	55
6.15		Redundancy Enable......................................	56
6.16		CUE AFL........................................................	56

Section 7 - Network Functions

7.1	Network Connections (Specs) .......................	59
7.2	Network Connections (Applications) ............	60
7.3	Master/Slave Assignments..............................	64
7.4	Redundancy ....................................................	67
7.5	Network Trouble Shooting ............................	68
7.6	PC GUI Install.................................................	69

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Table of Contents DriveRack™ User Manual

	DriveRack™	Table of Contents
Section 8 - 480 Remote Controller
8.1	Rear Panel Connections .................................	74
8.2	Front Panel Connections................................	75
8.3	Rear Panel Connections (480P) .....................	76
8.4	Front Panel (480P) .........................................	77
8.5	Using the RTA.................................................	78
8.6	Hot Key Assignments.....................................	79
8.7	Controlling Slave Units ..................................	79
Section 9 - Application Guide
9.1	Four Way FOH ...............................................	82
9.2	Front of House w/Delay 3-Way Towers .......	83
9.3	L-C-R + Sub + Rear ........................................	84
9.4	Bi-Amp & In-Ear.............................................	85
9.5	Dedicated FOH Crossover .............................	86
9.6	Stand-Alone Monitor EQ................................	87
Section 10 - Appendix
A.1 MIDI SYSEX ...................................................		90
A.2 Factory Reset ..................................................		93
A.3 Power up Quick Key Options ......................		93
A.4 Flash Downloads ...........................................		94
A.5 Program List ...................................................		94
A.6 Specifications..................................................		95
A.7 Crossover Diagrams .....................................		100
A.8 Gain Jumper Warning..................................		105
A.9 Input and Output Section Diagrams...........		106
A.10 “Pinking” a Room ......................................		107
A.11 Wire Diagrams............................................		108

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DriveRack™ User Manual Table of Contents

DriveRack™

INTRODUCTION

INTRO

CUSTOMER SERVICE INFO

Defining the

DriveRack

WARRANTY INFO

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Introduction	DriveRack

	INTRODUCTION	Congratulations on your purchase of the dbx DriveRack™ Complete Equalization and
		Loudspeaker Management System! For over 25 years, dbx has been the industry leader in
		dynamics processing. With the introduction of the DriveRack™ , dbx Professional Products has
		redefined the standard by which all other loud speaker management systems will be based
		This manual will be your guide to understanding the full functionality of the powerful 480, 481,
		482 and 480R DriveRack™ units. By combining the different components, the configuration pos-
		sibilities are limitless. After you have become familiar with the unit, we encourage you to
		experiment and find the most effective and efficient way to run your system by utilizing the
		powerful processing of the DriveRack™.

1.1 Defining the DriveRack™ System

The dbx DriveRack™ is the most effective way to manage all aspects of post mix processing and signal routing. The following are just some of the features of the 480, 481, 482 and 480R.

480 DriveRack™ features:

•4 Input and 8 Outputs with routing

•31 band graphic or 9 band parametric equalizer on every input (pre-crossover)

•Dual Real Time Audio Analyzers

•Butterworth, Bessel or Linkwitz-Riley crossover filters

•27 Different Crossover Configurations

•Time Alignment and Transducer Alignment Delays

•Compressor/Limiter on every output

•Speaker Compensation EQ (post crossover)

•Multi-level Security System

•Separate House and Show EQ with individual lockouts

•Triple redundant back up of all parameters when running network, 480R and PC GUI

•TYPE IV™ Conversion System

•Electronically balanced/RF filtered XLR Inputs and Outputs

•Proprietary RS-485 Control Network

•RS-232 PC Interface for computer display and configuration

481 DriveRack™ features:

•4 Input and 8 Outputs with routing

•31 band graphic or 9 band parametric equalizer on every input (pre-crossover)

•Dual Real Time Audio Analyzers

•Butterworth, Bessel or Linkwitz-Riley crossover filters

•27 Different Crossover Configurations

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ii	DriveRack™ User Manual

DriveRack™

Introduction

•Time Alignment and Transducer Alignment Delays

•Compressor/Limiter on every output

•Speaker Compensation EQ (post crossover)

•Multi-level Security System

•Separate House and Show EQ with individual lockouts

•Triple redundant backup of all parameters when running network, 480R and PC GUI

•TYPE IV™ Conversion System

•Electronically balanced/RF filtered Euroblock Inputs and Outputs

•Proprietary RS-485 Control Network

•RS-232 PC Interface for computer display and configuration

482 DriveRack™ features:

•4 Input and 8 Outputs with routing

•31 band graphic or 9 band parametric equalizer on every input (pre-crossover)

•Dual Real Time Audio Analyzers

•Butterworth, Bessel or Linkwitz-Riley crossover filters

•27 Different Crossover Configurations

•Time Alignment and Transducer Alignment Delays

•Compressor/Limiter on every output

•Speaker Compensation EQ (post crossover)

•Multi-level Security System

•Separate House and Show EQ with individual lockouts

•Triple redundant back up of all parameters when running network, 480R or GUI

•TYPE IV™ Conversion System

•Electronically balanced/RF filtered XLR Inputs and Outputs

•Proprietary RS-485 Control Network

•RS-232 PC Interface for computer display and configuration

480R DriveRack™ features:

•Dedicated remote interface to control all 480, 481 and 482 DriveRack™ units

•31 Motorized faders for equalization control

•32 assignable hot-keys with up to 64 different assignment capabilities

•Built-in Real Time Audio Analyzer (with rear-panel XLR connector)

•System Mute button

•Proprietary RS-485 Control Network

•RS-232 PC Interface for computer display and configuration

•480P Power Supply Included

•Responds to MIDI commands from mixing consoles including: Soundcraft™ SM20 and Series 5, Allen & Heath™ ML5000 and Midas™ Heritage

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Introduction	DriveRack

By including every form of processing necessary to drive the signal from the mixer to the power amp, the DriveRack™ allows you to eliminate all other processing devices that are normally found in large and cumbersome traditional DriveRack systems of the past.

The 480 DriveRack™ Loud Speaker Management System includes four balanced XLR inputs, as well as eight balanced XLR outputs, which can be routed for any configuration. The 481 and 482 DriveRack™ feature the identical processing power of the 480 DriveRack, but utilize streamline front panel interfaces. In addition, the 481 utilizes euroblock connectors as opposed to the XLR connectors found in the 480 and 482 DriveRack.

The 480, 481 and 482 DriveRacks™ include features such as: pre-crossover EQ, dual RTAs, notch filters, speaker delays, multiple crossovers and compression/limiting, as well as numerous other features. Dual RTA analyzers can be run simultaneously with RTA source inputs capable of being remotely switched on the fly. The 480 DriveRack™ is fully programmable from the front panel, and can control other devices in a network including the 481 and 482 slave units. In addition, the entire system can be controlled via the 480R DriveRack™ remote controller or through the included GUI interface.

1.2 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 rear 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 followed installation steps and operation procedures. If you are still unable to solve a problem, contact our Customer Service Department at [phone] for consultation. If you need to return a product to the factory for service, you MUST contact Customer Service to obtain a Return Authorization Number.

No returned products will be accepted at the factory without a Return Authorization Number.

Please refer to the Warranty below, which extends to the first end-user. After expiration of the warranty, a reasonable charge will be made for parts, labor, and packing if you choose to use the factory service facility. In all cases, you are responsible for transportation charges to the factory. dbx will pay return shipping if the unit is still under warranty.

Use the original packing material if it is available. Mark the package with the name of the shipper and with these words in red: DELICATE INSTRUMENT, FRAGILE! Insure the package properly. Ship prepaid, not collect. Do not ship parcel post.

1.3 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. Proof-of-purchase is considered to be the burden of the consumer.

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DriveRack™

Introduction

Section i

2.dbx warrants this product, when bought and used solely within the U.S., to be free from defects in materials and workmanship under normal use and service.

3.dbx liability under this warranty is limited to repairing or, at our discretion, replacing defective materials that show evidence of defect, provided the product is returned to dbx WITH RETURN AUTHORIZATION from the factory, where all parts and labor will be covered up to a period of two years. A Return Authorization number must be obtained from dbx by telephone. The company shall not be liable for any consequential damage as a result of the product's use in any circuit or assembly.

4.dbx reserves the right to make changes in design or make additions to or improvements upon this product without incurring any obligation to install the same additions or improvements on products previously manufactured.

5.The foregoing is in lieu of all other warranties, expressed or implied, and dbx neither assumes nor authorizes any person to assume on its behalf any obligation or liability in connection with the sale of this product. In no event shall dbx or its dealers be liable for special or consequential damages or from any delay in the performance of this warranty due to causes beyond their control.

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DriveRack™ User Manual

v

DriveRack™

Section 1

Getting Started

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Section 1		Getting Started	DriveRack

1.1 Rear Panel Connections (480)

IEC Power Cord Receptacle

The 480 comes with an International power supply that will accept voltages ranging from 100V240V at frequencies from 50Hz-60Hz. An IEC cord is included.

MIDI In, Out and Thru Connectors

These connectors provide MIDI functionality to the 480 DriveRack™. The In, Out and Thru jacks allow you to use the 480 DriveRack™ at any point in the MIDI chain.

RS485 Control Bus Input (DB-9 connector type)

This input network connection is used to receive information being sent from other units in the DriveRack™ network link.

RS485 Control Thru Bus (DB-9 connector type)

This Thru network connection is used to pass information to other units in the DriveRack™ network link.

RS485 Control Bus Input (RJ-45 connector type)

This input network connection is used to receive information being sent from other units in the DriveRack™ network link.

RS485 Control Thru Bus (RJ-45 connector type)

This Thru network connection is used to pass information to other units in the DriveRack™ network link.

Termination LEDs

These LEDS indicate when network is properly terminated. The Green LED indicates that the network has been correctly terminated.

Remote Controller In Connection

This DB-9 type input connection is used to send and receive information from the 480R Remote Control unit.

PC Connection

This DB-9 type connection is used to send and receive information to and from the GUI interface.

Outputs 1-8

The output section of the 480 DriveRack™ offers eight electronically balanced XLR connectors.

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DriveRack™

Getting Started

Section 1

Inputs 1-4

The input section of the 480 DriveRack™ offers four electronically balanced XLR connectors. Inputs 3 and 4 offer Line/RTA switches that allow you to run a real time audio analyzer microphone directly into the input of the 480 DriveRack™. The four XLR inputs of the 480 DriveRack™ also offer Pin 1 lift switches which lift the ground of the selected XLR input pair when pressed.

WARNING - For proper operation of the RTA microphone, the RTA button must be depressed and the ground /lift switch must be in the grounded position. When the RTA button on the back panel is depressed, 48V phantom power is applied to pins 2 and 3 of the XLR connector. To maintain a proper ground return for the phantom power, the ground/lift switch must be in the grounded position. This will prevent the possibility of electrical shock.

1.2 Front Panel (480)

LCD Display

The large LCD display of the 480 DriveRack™ provides the user with all of the vital processing information of the DriveRack™ including: signal routing, configuration modes, effect block editing and RTA displays. The top left corner of the display indicates network device ID numbers. The reverse background number indicates the number of the slave unit being controlled, while Mst indicates that the unit is set to act as the master.

Function Buttons

The function buttons of the 480 DriveRack™ allow access to all editing and navigating functions of the 480 DriveRack™.

Parameter Knobs

The parameter knobs of the 480 DriveRack™ allow the user to edit parameters of selected effects of the 480 DriveRack™. The parameter knobs of the 480 and 480R DriveRack™ units also incorporate light display Logicators™ which surround the knob itself and indicate levels of parameter and effect activity. The parameter knobs of the 480 DriveRack™ also provide the

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Section 1	Getting Started	DriveRack

user with different modes of functionality including: coarse/fine encoding (successive presses will toggle the knob between a fast and slow mode of operation) and horizontal-vertical navigators, which allow the parameter buttons (when used in program and configuration mode) to navigate the program screen horizontally and vertically.

Input Meters

The 480 DriveRack™ provides the user with four independent 12 segment Lightpipe™ input meters that range from -30 to +22 dBu. Note: These meters are calibrated for the +22dBu setting of the gain jumpers.

Threshold Meters

The threshold meters indicate that the threshold level has been exceeded within the dynamics section (compressor/limiter), and gain reduction is taking place within the specific output channel.

Output Meters

The 480 DriveRack™ provides the user with eight independent 12-seg- ment Lightpipe™ output meters that range from -30 to +22 dBu. Note: These meters are calibrated for the +22dBu setting of the gain jumpers.

Output Mutes

The eight output mute buttons are used for independently muting each output on all eight outputs of the 480 DriveRack™.

Power Switch

Turns the 480 DriveRack™ on and off. Note: dbx Professional Products recommends that power amps connected to the DriveRack™, should be powered down prior to cycling the DriveRack™.

1.3 Rear Panel Connections (481)

IEC Power Cord Receptacle

The 481 comes with an International power supply that will accept voltages ranging from 100V240V at frequencies from 50Hz-60Hz. An IEC cord is included.

RS485 Control Bus Input (DB-9 connector type)

This input network connection is used to receive information being sent from other units in the DriveRack™ network link.

RS485 Control Thru Bus (DB-9 connector type)

This Thru network connection is used to pass information to other units in the DriveRack™ network link.

RS485 Control Bus Input (RJ-45 connector type)

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DriveRack™

Getting Started

Section 1

This input network connection is used to receive information being sent from other units in the DriveRack™ network link.

RS485 Control Thru Bus (RJ-45 connector type)

This Thru network connection is used to pass information to other units in the DriveRack™ network link.

Termination LEDs

These LEDS indicate when network is properly terminated. The Green LED indicates that the network has been correctly terminated.

Remote Controller In Connection

This DB-9 type input connection is used to send and receive information from the 480 Remote DriveRack™ Unit.

Outputs 1-8 (Euroblock Connectors)

The output section of the 481 DriveRack™ offers eight electronically balanced Euroblock connectors.

Inputs 1-4

The input section of the 481 DriveRack™ offers four electronically balanced Euroblock connectors.

Ground Lift Switch

This switch (when pressed in), is used to lift the Pin one ground on either inputs 1 and 2 or 3 and 4.

1.4 Front Panel (481)

PC Connection

This DB-9 type connection is used to send and receive information to and from the GUI interface.

Program Up and Down

These program up and down buttons are used to scroll through the program menu of the 481.

Program Display

This program display is used to indicate the currently selected program of the 481.

ID Display

This ID display is used to indicate the current assigned identification of the 481. This identification is essential for unit recognition when the 481 is used in a network system.

Control Bus LED

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Section 1	Getting Started	DriveRack

This LED (when lit), indicates that the 481 is connected to the control bus.

When it is flashing, the 481 is sending/receiving network information.

Remote LED

This LED (when lit), indicates that the 481 is connected to the 480R. When it is flashing, the 481 is sending/receiving information from the 480R.

PC LED

This LED (when lit), indicates that the 481 is connected to the PC. When it is flashing, the 481 is sending/receiving information from the PC.

Input Meters

The 481 DriveRack™ provides the user with four independent 6-segment lightpipe™ input meters that range from -30 to +22 dBu. Note: These meters are calibrated for the +22dBu setting of the gain jumpers.

Output Meters

The 481 DriveRack™ provides the user with eight independent 6-segment lightpipe™ output meters that range from -30 to +22 dBu. Note: These meters are calibrated for the +22dBu setting of the gain jumpers.

Power Switch

Turns the 481 DriveRack™ on and off. Note: dbx Professional Products recommends that power amps connected to the DriveRack™ should be powered down prior to cycling the DriveRack™.

1.5 Rear Panel Connections (482)

IEC Power Cord Receptacle

The 482 comes with an International power supply that will accept voltages ranging from 100V-240V at frequencies from 50Hz-60Hz. An IEC cord is included.

MIDI In, Out and Thru Connectors

These connectors provide MIDI functionality to the 482 DriveRack™. The In, Out and Thru jacks allow you to use the 482 DriveRack™ at any point in the MIDI chain.

RS485 Control Bus Input (DB-9 connector type)

This input network connection is used to receive information being sent from other units in the DriveRack™ network link.

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DriveRack™

Getting Started

Section 1

RS485 Control Thru Bus (DB-9 connector type)

This Thru network connection is used to pass information to other units in the DriveRack™ network link.

RS485 Control Bus Input (RJ-45 connector type)

This input network connection is used to receive information being sent from other units in the DriveRack™ network link.

RS485 Control Thru Bus (RJ-45 connector type)

This Thru network connection is used to pass information to other units in the DriveRack™ network link.

Termination LEDs

These LEDS indicate when network is properly terminated. The Green LED indicates that the network has been correctly terminated.

Remote Controller In Connection

This DB-9 type input connection is used to send and receive information from the 480 Remote DriveRack™ Unit.

PC Connection

This DB-9 type connection is used to send and receive information to and from the GUI interface.

Outputs 1-8

The output section of the 482 DriveRack™ offers eight electronically balanced XLR connectors.

Inputs 1-4

The input section of the 482 DriveRack™ offers four electronically balanced XLR connectors. Inputs 3 and 4 offer Line/RTA switches that allow you to run a real time audio analyzer microphone directly into the input of the 482 DriveRack™. The four XLR inputs of the 482 DriveRack™ also offer Pin 1 lift switches which lift the ground of the selected XLR input pair when pressed.

Warning - For proper operation of the RTA microphone, the RTA button must be depressed and the ground /lift switch must be in the grounded position. When the RTA button on the back panel is depressed, 48V phantom power is applied to pins 2 and 3 of the XLR connector. To maintain a proper ground return for the phantom power, the ground/lift switch must be in the grounded position. This will prevent the possibility of electrical shock.

1.6 Front Panel (482)

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Section 1	Getting Started	DriveRack

PC Connection

This DB-9 type connection is used to send and receive information to and from the GUI interface.

Program Up and Down

These program up and down buttons are used to scroll through the program menu of the 482.

Program Display

This program display is used to indicate the currently selected program of the 482.

ID Display

This ID display is used to indicate the current assigned identification of the 482. This identification is essential for unit recognition when the 482 is used in a network system.

Control Bus LED

This LED (when lit), indicates that the 482 is connected to the control bus. When it is flashing, the 482 is sending/receiving network information.

Remote LED

This LED (when lit), indicates that the 482 is connected to the 480R. When it is flashing, the 482 is sending/receiving information from the 480R.

PC LED

This LED (when lit), indicates that the 482 is connected to the PC. When it is flashing, the 482 is sending/receiving information from the PC.

Input Meters

The 482 provides the user with four independent 12 segment lightpipe™ input meters that range from -30 to +22 dBu. Note: These meters are calibrated for the +22dBu setting of the gain jumpers.

Threshold Meters

The threshold meters indicate that the threshold level has been exceeded within the dynamics section (compressor/limiter), and gain reduction is taking place within the specific output channel.

Output Meters

The 482 DriveRack™ provides the user with eight independent 12-seg- ment lightpipe™ output meters that range from -30 to +22 dBu. Note: These meters are calibrated for the +22dBu setting of the gain jumpers.

Output Mutes

The eight output mute buttons are used for independently muting each output of the 482 DriveRack™.

Power Switch

Turns the 482 DriveRack™ on and off. Note: dbx Professional Products recommends that power amps connected to the DriveRack™ should be powered down prior to cycling the DriveRack™.

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DriveRack™ Section 2

Editing Functions

EDITING

FUNCTIONS

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Section 2	Editing Functions	DriveRack

Editing

Functions

The 480 DriveRack™ has been carefully designed and engineered to ensure that all aspects of operation are intuitive and logical. Simply stated, the 480 DriveRack™ operating system was designed with user’s best interest in mind. Editing the 480 DriveRack™ can be done by utilizing key functions and tools. This section will provide you with detailed information on all of the tools used to optimize the editing performance of your DriveRack™. This intuitive front panel interface can also be used to control other units (481 and 482) which are used within a a DriveRack™ network system.

2.1 Basic Navigation Modes

Navigational aspects of the 480 DriveRack™ are clear, concise and more important: flexible. The DriveRack™ provides you with essentially three different modes of navigation when performing programming edits. 1. FX buttons - This array of 12 FX buttons is your primary mode of accessing any effect module. 2. NEXTPG & PREVPG page buttons - Successive presses of the NEXTPG or PREVPG page buttons will move the user from one page to the next in an effect block. 3. PARAMETER KNOBS - In addition to editing parameter values with the PARAMETER knobs, the PARAMETER 2 & 3 knobs (when used in program mode) will move the cursor throughout the display horizontally and vertically. For more information on this unique feature, please see section 2.4.

2.2 FX Button Array Overview

The following sections will provide you with detailed information for accurate navigation of the FX button section of the 480 DriveRack™. Each diagram indicates the functionality of each FX button and its ability to guide the user through each operational menu.

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DriveRack™

Editing Functions

Section 2

2.2 FX Button Array Overview (cont.)

PREVIOUS PAGE - Moves to the previous page in the currently selected effect menu.

NEXT PAGE - Moves to the next page in the currently selected effect menu.

EQ - Selects the EQ effect menu. Successive presses will rotate through the various

EQ modules.

XOVER - Selects the Cross over menu. Successive presses will toggle between the various crossovers

RTA - Enters the RTA mode of the DriveRack. Successive presses will toggle between the RTA modules.

DELAY - Selects the DELAY effect menu. Successive presses will toggle between the various delay modules.

DYNAMICS - Selects the Compressor/Limiter effect menu. Successive presses will move through the dynamics modules.

OTHER - Selects the Input and Output editing sections of the DriveRack™.

PROGRAM/CONFIG - This button will load a selected program, loads the Program mode or enters the Configuration edit mode when pressed and held.

STORE - The STORE button is used to store program edits.

UTILITY - Selects the Utility edit menu of the DriveRack.

COMPARE - The Compare button is used to compare program edits to the original (unedited) program.

PARAMETER KNOBS changes (parameter 1), knobs 2 and 3.

- The parameter knobs perform various functions including: program parameter value edits and cursor navigation utilizing the parameter

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Section 2		Editing Functions	DriveRack

2.3 Parameter Knob Encoders Coarse/Fine Operation

The parameter knob encoders of the 480 and 480R DriveRack™ Remote provide the user with the option of coarse or fine performance modes. This means that the parameter knobs can be set to either move or change values at a rapid (coarse) or slower (fine) rate. This option can be selected in any mode by simply pressing the selected parameter knob. Successive presses will toggle between coarse and fine mode.

2.4 Parameter Knobs (Horizontal-Vertical Navigation Mode)

The 480 DriveRack™ offers the horizontal-vertical navigation feature which helps streamline navigation and editing of the unit. The Horizontal-Vertical Navigation mode allows the user to use the parameter knobs (2&3) to quickly navigate through the program/configuration menu of any DriveRack™ unit. This feature can be used to navigate the display screen in program or configuration mode. To utilize this feature, simply select the high-lighted cursor, then use the PARAMETER 2 knob to move the cursor left and right, and use the PARAMETER 3 knob to move the cursor up and down while the unit is in Program or Configuration mode.

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DriveRack™	Editing Functions	Section 2
	2.5 Navigating the EQ Sections

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Section 2		Editing Functions	DriveRack

2.6 Navigating the XOVER

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DriveRack™	Editing Functions	Section 2
	2.7 Navigating the RTA

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Section 2		Editing Functions	DriveRack

2.8 Navigating the Delay

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DriveRack™	Editing Functions	Section 2
	2.9 Navigating the Dynamics Section

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Section 2	Editing Functions	DriveRack

2.10 Navigating the Other Section

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DriveRack™	Editing Functions	Section 2
	2.11 Navigating the Utility Section

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DriveRack™ Section 3

SOFTWARE

CONFIGURATION

FUNCTIONS

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