dBTechnologies DSX 2040 Loudspeaker Management System User Manual

USER MANUAL

The warnings in this manual must be observed together with the “USER MANUAL – Section 2”.

IMPORTANT SAFETY INSTRUCTIONS

CAUTION: TO REDUCE THE RISK OF ELECTRICAL SHOCK, DO NOT REMOVE THE COVER (OR BACK). NO USER-SERVICEABLE
PARTS INSIDE; REFER SERVICING TO QUALIFIED PERSONNEL.
WARNING: TO REDUCE THE RISK OF FIRE OR E L E C T R I C A L S H O C K . D O N O T EXPOSE THIS APPLIANCE TO RAIN OR
MOISTURE.

This symbol, wherever it appears, alerts you to the presence of uninsulated dangerous voltage inside the enclosure – voltage that may be sufficient to constitute a risk of shock.
This symbol wherever it appears alerts you to important operating and maintenance instructions in the accompanying literature. Read the manual.

IMPORTANT NOTES

This manual is to be considered an integral part of the product, and must always accompany the equipment when it changes ownership, as a reference for correct installation and operation as well as for the safety regulations. The Manufacturing Company will not assume any responsibility for incorrect
installation of the amplifier.
Read these instructions
All the safety and operation instructions should be read before the appliance is operated.
Heed all Warnings
All warnings on the appliance and in the operating instructions should be adhered to
Long-period nonuse of equipment
If long-term non-use of the appliance is expected, it would be better to unplug this apparatus from the power supply, put it into proper packaging, and cover it to avoid dust exposure.
Damage and repair
If the apparatus has been damaged it is forbidden to repair it or to remove the cover. Disconnect the unit from the mains power and contact technical assistance for repair.

INSTALLATION AND OPERATING PRECAUTIONS GENERAL

Keep these instructions
For the correct use of the appliance, the safety and operating instructions should be retained for future reference.
Apparatus positioning
Make sure that the apparatus is positioned in a stable and secure way in order to avoid any dangerous conditions for persons or objects.
Grounding protection
The apparatus is made in protection CLASS I to prevent the risk of electrical shock the appliance must be connected to a mains socket outlet with a protective earthing connection. Before making the electrical connection of the appliance, ensure that the electrical distribution network conforms to the
regulations regarding electrical equipment.
Power Source
The appliance should be connected to a power supply only of the type described in the operating instructions or as marked on the appliance (see “Specifications”). In order not to jeopardize the safety of the amplifier, it must only be connected to the mains using the power cable provided.
Disconnection from the mains
The power mains connector ( VDE) is the device to disconnect from the mains. This device must be easily accessible after installation.
Power Cord Protection
To ensure safe use of the appliance, use only the power cord supplied with the equipment, taking care to place it and protect it to avoid damage during use. If the power cord becomes damaged contact technical assistance and request replacement. Do not use cables other than supplied cables.
Water and Moisture
Do not install this apparatus near water (e.g. near washbasins, sinks, showers, bathtubs, swimming pools, wet floors, or anything in the presence of water and liquids in general).
Object and Liquid Entry
The apparatus must be placed in an inappropriate position. Care should be taken so that objects do not fall and liquids are not spilled into the enclosure through the cooling grid with consequent electrical danger.
Ventilation
The appliance should be situated so that its location or position does not interfere with its proper ventilation. Do not block or cover any openings of the grid ventilation or heatsink. Install the apparatus at a distance that ensures good ventilation between devices.
Heat
Do not install the appliance near any source of heat. Accessories and installation For a safe installation, do not make any holes in the external chassis for the application of additional brackets. In case of particular installations not described in this manual, contact technical service for accessories specified by the manufacturer.
Follow the instructions
All operations and instructions in this user manual should be followed for the correct operation and function of the appliance. Pay attention in particular to:
-Never force the control elements (switches, controls, etc.).
-Do not force the amplifier to work in overload for extended periods of time.
Cleaning
Clean only with a dry cloth. Do not use solvents, alcohol, benzene, or volatile substances for cleaning the exterior parts.

CONNECTION

CAUTION

• For connecting the appliance, use only qualified and experienced personnel having sufficient technical knowledge or specific instructions for making the connections correctly and thus preventing electrical dangers.
• To prevent the risk of electrical shock, the appliance must only be supplied from the mains after all connections have been completed.
• Before powering up the appliance, it is advisable to re-check all the connections.
• The entire sound system must be designed and installed in compliance with the current standards and regulations regarding electrical systems.

SUGGESTIONS

CAUTION
To prevent inductive phenomena from giving rise to hum or disturbance which would jeopardize efficient appliance operation, the cables that transmit microphone signals or line-level signals (e.g. 0 dB/V) must be screened and should not be run in the vicinity of:

1. Equipment that produces strong magnetic fields (e.g. large power supply transformers)
2. Electrical energy conductors
3.  Lines that supply speakers.

INTRODUCTION

The DSX 2040 is a digital loudspeaker management system designed for the touring or fixed sound installation markets. The absolute latest in available technology is utilized with 40-bit floating-point processors and high- performance 24-bit Analog Converters. The high-bit DSP prevents noise and distortion
induced by truncation errors of the commonly used 24-bit fixed-point devices. A complete set of parameters include I/O levels, delay, polarity, 8 bands of EQ per channel, 31 bands of GEQ per input, multiple crossover selections, and full function limiters. Precise frequency control is achieved with its 1 Hz resolution. Inputs and outputs can be routed in multiple configurations to meet any requirement. The DSX 2040 can be controlled or configured in real- time on the front panel or with the intuitive PC GUI accessed via the RS-232 or USB interface. Software upgrade for CPU and DSP via PC keeps the device current with newly developed algorithms and functions once available. Multiple setup storage and system security complete this professional package.
Shipped contents:

• DSX 2040 Unit
• User Manual
• console Software CD
• Power Cord

FEATURES

• 2 Inputs and 4 Outputs with flexible routing
• 40-bit floating-point DSP
• 96kHz Sampling Rate
• High-Performance 24-bit A/D Converters
• 1 Hz Frequency Resolution
• 8 Equalizers (Magnitude or Phase) for each Input and Output
• 31 Bands GEQ for each Input
• Multiple Crossover types with Full Function Limiters
• Precise Level, Polarity, and Delay
• CPU and DSP upgrade via PC
• Individual Channel Buttons with Linking capability
• 2-Line x 16 Character Backlit LCD Display
• Full 5-segment LED’s on every Input and Output
• Storage of up to 30 Preset Setups
• Security Lock
• USB and RS232 Interface for PC Control and Configuration

FRONT PANEL FUNCTIONS

1. USB – a standard Type B USB connector. The device driver from the provided software CD must be installed prior to usage.

2. RS232 – a standard female DB9 socket. A straight-through cable is required for a PC connection.

3. Mute (Channel Menu) Buttons – Mute or un-mute input and output channels. When an input channel is muted, a red LED will come on for indication.
   When the <

   > key is held down, the Mute Buttons selects the corresponding channel for the LCD menu display and is acknowledged by a green LED below the button. The last modified menu will be displayed on the LCD. Multiple channels can be linked or unlinked by pushing the desired channels. This eases programming for the same parameters across multiple channels. Multiple Inputs can be linked together and multiple outputs can be linked together.  Inputs and Outputs are linked separately.

4.  Channel Menu LED – Indicates the activated channels for data modification.

5. Peak Level LED – Indicates the current peak level of the Signal: Signal, -12dB, -6dB, -3dB, Over/Limit. The Input Limit LED references the device’s maximum headroom. The Output Limit LED references the threshold of the output limiter.

6. LCD – Shows all the necessary information to control the unit.

7. Menu Buttons – There are 6 menu keys: <<Menu (Menu Down), Menu>> (Menu Up),
   <<Cursor (Cursor Down), Cursor>> (Cursor Up), Enter/Sys/Speed, Exit.
   The functions of each key are explained below:
   <<Menu: Go to the previous menu screen. Holding this button down while pressing the Mute key will go to the specified channel menu.
   Menu>>: Go to the next menu screen. Holding this button down while pressing the Mute key will go to the specified channel menu.
   <<Cursor: Go to the previous cursor in the menu screen.
   Cursor>>: Go to the next cursor in the menu screen.
   Enter/Sys/Speed: Enter is used only in the System Menu to proceed with selected actions. Sys enters the System Menu from the main menu. Speed modifies delay and frequency (1 Hz resolution mode) data values by 100X.
   Exit: Exit to the Main Menu.

8. Rotary Thumb Wheel – Changes parameter data values. The wheel has travel velocity sensing which eases large incremental data modifications. For modifying delay and frequency (1 Hz resolution), pressing the Speed key simultaneously will increment/decrement the data value by 100X.

REAR PANEL FUNCTIONS

1. Main Power – Connects via a standard IEC socket. A compatible power cord is supplied with the unit. The voltage input is 90-240VAC, 50-60Hz.
2.  Main Fuse – T2.5A-250V. Slow blow type.
3. Power switch – Controls power On/Off.
4. Analog Inputs and Outputs – XLR connectors are provided for each audio input and output. The device’s output stage employs the balanced impedance topology. All I/O connectors have pin 1 as ground (shield), pin 2 as +, and pin 3 as -.

POWERING UP THE DEVICE

• After powering up the unit, the following initialization screen is displayed on the LCD:
• The initialization process takes several seconds and during that period the unit boots and displays the device model and firmware version.
• After the initialization process is finished the DSX 2040 displays its main screen:
• The screen shows the current program number and program name assigned to the unit. If the program number is 31 and the name is MEMORY, it means that the program is assigned, the last data before the previous power down is recalled no instead.
• Now the DSX 2040 is ready to operate.

OPERATING THE CHANNEL MENUS

Channel Linking – While holding down the <