VIETA VDC-48 User Manual
VDC-48
Loudspeaker Management System
User Manual
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Important Safety Instructions
1. READ THESE INSTRUCTIONS
All the safety and operating instructions should be read before the product is operated.
2. KEEP THESE INSTRUCTIONS
The safety and operating instructions should be retained for future reference.
3. HEED ALL WARNINGS
All warnings on the product and
in
the operating instructions should be adhered to.
4. FOLLOW ALL INSTRUCTIONS
All operating and use of instructions should be followed.
5. DO NOT USE THIS APPARATUS NEAR WATER
Do not use the product near water. For example, near a bathtub, washbowl, kitchen sink,
or laundry tub,
in a
wet basement, or near a swimming
pool,
and the like.
6. CLEAN ONLY WITH DRY CLOTH
Unplug the unit from the wall outlet before cleaning. Do not use
liquid
cleaners or
aerosol cleaners. Use a damp cloth for cleaning.
7. DO NOT BLOCK ANY VENTILATION OPENINGS
Slots and openings
in
the cabinet back or bottom are provided for ventilation, to ensure
reliable operation of the limit and to protect it from overheating. These openings must
not be blocked or covered. The openings should never be blocked by placing the product
on a bed, sofa, rug, or similar surface. This product should never be placed near or over
a radiator or heat source. This product should not be placed
in a
built-in installation such
as a bookcase or rack unless proper ventilation is provided or the manufacture's
instructions have been adhered to.
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8. DO NOT INSTALL NEAR ANY HEAT SOURCES
This Product should be situated away from heat sources such as radiators, stoves, or
other products (including amplifiers) that produces heat.
9. DO NOT DEFEAT THE SAFETY PURPOSE OF THE POLARIZED OR GROUNDING-TYPE
PLUG
A Polarized
plug
has two blades with one
wi
der than the other. A grounding-type
plug
has two blades and a third groun
ding
prong. The wide blade or the third prongs are
provided for your safety. If the provided
plug
does not fit into your outlet, consult an
electrician for replacement of the obsolete outlet.
10. PROTECT THE POWER CORD FROM BEING WALKED ON OR
PI
NCHED
PARTICULARLY AT PLUGS, CONVENIENCE RECEPTACLES, AND THE POINT WHERE
THEY EXIT FROM THE APPARATUS.
11. ONLY USE ATTACHMENTS/ACCESSORIES SPECIFIED BY THE MANUFACTURER.
12. USE ONLY WITH CART, STAND, TRIPOD, BRACKET, OR TABLE SPECIFIED BY THE
MANUFACTURER, OR SOLD WITH THE APPARATUS. WHEN A CART
IS
USED, USE
CAUTION WHEN MOVING THE CART/APPARATUS TO AVOID INJURY FROM TIP-OVER
.
Do not place this unit on an unstable cart, stand, tripod, bracket, or table. The unit may
fall, causing serious injury to someone, and serious damage to the appliance. A unit and
cart combination should be moved with care. Quick stops, excessive force, and uneven
surfaces may cause the product and cart combination to overturn.
13. UNPLUG THIS APPARATUS DURING
LI
GHTNING STORMS OR WHEN UNUSED FOR
LONG PERIODS OF
TI
ME.
For added protection for this unit during a
lightning
storm, or when it is left unattended
and unused for
long
periods of time, unplug it from the wall outlet and disconnect the
antenna or cable system. This
will
prevent damage to the unit due to
lightning
and power
line surges.
14. REFER ALL SERVICING TO QUALIFIED SERVICE PERSONNEL. SERVICING
IS
REQUIRED WHEN THE APPARATUS HAS BEEN DAMAGED IN ANYWAY, SUCH AS
WHEN THE POWER SUPPLY CORD OR PLUG
IS
DAMAGED,
LI
QUID HAS BEEN SPILLED
OR OBJECTS HAVE FALLEN INTO THE APPARATUS, THE APPARATUS HAS BEEN
EXPOSED TO RAIN OR MOISTURE, DOES NOT OPERATE NORMALLY, OR HAS BEEN
FROPPED.
15. WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE
THIS APPARATUS TO RAIN OR MOISTURE.
16. APPARATUS SHALL NOT BE EXPOSED TO DRI
PPING OR
SPLASHING AND NO
OBJECTS FILLED WITH LIQUID
S,
SUCH AS VASES, SHALL BE PLACED ON THE
APPARATUS
.
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Table of Contents
Table of Contents ................................................................... 4
1.0 Introduction .................................................................... 5
2.0 Features .......................................................................... 6
3.0 Front Panel Functions ................................................... 7
4.0 Rear Panel Functions .................................................... 9
5.0 Powering Up the Device .............................................. 10
6.0 Operating the Channel Menus .................................... 11
7.0 Operating the System Menus ..................................... 18
8.0 Quick Reference........................................................... 25
9.0 PC Control Software .................................................... 26
10.0 Specifications............................................................... 27
11.0 Warranty........................................................................ 29
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1.0 Introduction
The
VDC-48 is a
digital loudspeaker management system designed for
the touring or
fi
xed sound installation markets. The absolute latest in
available technology is utilized with 40-bi
t fl
oating 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 24bit 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
VDC-48
can be controlled or configured in real time on the front panel or with the
intuitive PC GUI accessed via
the
RS-232, USB or Ethernet 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:
-
VDC-48
Unit
- User Manual
- XConsole Software CD
- Power Cord
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2.0 Features
>
Up to 8 Inputs and 8 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
>
Ethernet, USB and RS232 Interface for PC Control and Configuration
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3.0 Front Panel Functions
1. USB – a standard Type
B
USB connector. 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 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
<<
Menu or Me
nu>>
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
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.
1
2 3 4
5
6 7
8
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5. Peak Level LED – Indicates the current peak level of the Signal:
Signal, -12dB, -6dB, -3dB, Over/Limi
t.
The Input Limit LED references
to the device's maximum headroom. The Output Limit LED references
to the threshold of the output limiter.
6. LCD – Shows all the necessary information to control the uni
t.
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 is explained below:
<<Menu:
Go to previous menu screen. Holding this button
down while pressing Mute key will go to the specify
channel menu.
Menu>>:
Go to next menu screen.
Holding this button down
while pressing Mute key will go to the specify
channel menu.
<<Cursor:
Go to previous cursor in the menu screen.
Cursor>>:
Go to next cursor in the menu screen.
Enter/Sys/Speed: Enter is used only in the System Me
nu 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 ease 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.
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4.0 Rear Panel Functions
1,2,3 4 5
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. Ethernet – RJ45 connector for Ethernet control.
The device should be
connected to a router/switch/hub via a straight through CAT-5 cable.
5. Analog Inputs and Outputs – Separate 3-pin 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
-.
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