dB TECHNOLOGIES DVA S1521N - Manual (Page 5)

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DESCRIPTION
The DVA S1521N is equipped with one high efficiency amplifiers DIGIPRO 1500S of
DIGIPRO® G2 series, which delivers 1500W RMS.
The power supply circuits of the DIGIPRO® G2 amplifier has been conceived to work in
full-range mode; thanks to the SMPS (Switched-Mode Power Supplies) technology with
PFC (Power Factor Correction) the operation with supply voltages between 100 Vac and
240Vac is guaranteed by ensuring the same sound performances even with floating and
non-stabilized power supply systems.
The digital preamplifier with DSP (Digital Signal Processing) controls the audio crossover
of the acoustic components, the frequency response and the limiter.
DVA S1521N is made of birch wood, designed for medium size rooms. The subwoofer
speaker is made using "BASS REFLEX" which produces high pressure and a deep bass
sound.
CONTROLS AND FUNCTIONS
"Balanced Audio" section
1) "INPUT” - INPUT CONNECTOR
Balanced input at line level. It is able to accept “XLR” sockets.
2) "LINK” - OUTPUT CONNECTOR
The “XLR” connector connected in parallel with input (1) can be used to send the
input audio signal to another amplified speaker.
"Status" section
3) “LIMITER” INDICATOR LIGHT
This indicator comes on red to indicate that the internal limiter circuit has tripped.
This prevents amplifier distortion and protects the speakers against overloads.
Always avoid operating conditions where the system works for long periods
of time with LED flashes or it is always ON
4) “SIGNAL” INDICATOR LIGHT
This indicator comes on green to indicate the presence of an input signal to a level
higher than-20dBu.
5) “MUTE/PROT” INDICATOR LIGHT
This yellow indicator indicates amplifier status. In normal operating conditions, the
LED is off; if it flashes or is always on, refer to the diagnostics table to check
amplifier status.
6) “READY” INDICATOR LIGHT
This indicator comes on green to indicate that the main power voltage is correct. In
normal operating conditions, the LED is on; if it flashes or is off, refer to the
diagnostics table to check amplifier status.
"Input control " section
7) “INPUT SENS” INPUT SENSITIVITY CONTROL
This control regulates the sensitivity of the signal amplifier input.
This control does not affect the “LINK” (2) output level.
"Xover Out " section
8) OUTPUT CONNECTOR
Internal crossover audio balanced output, by XLR connector. The signal from this
output can be sent to any other amplified speaker.
The crossover frequency can be selected by means “Xover Frequency” switch (9).
9)
"Xover Frequency selection 24dB/Oct” SELECTOR
This selector permits selection of crossover frequency from 60Hz to 105Hz (step
5Hz) with a slope of 24dB/Oct.
The frequency choice depends to the reproduction desired and from system
configuration.
10) “Remote Preset Active” INDICATION LIGHT
When the amplifier is remotely controlled via RDNET, this yellow indicator indicates
the exclusion of the below commands:
Volume (7)
Phase (11)
Xover Frequency selection (9)
Delay (12)
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DVA Network
DVA USB Manager
The firmware of the amplifier module can be updated via the USB port.
To make this update possible and simple, a dedicated program has been developed.
DVA S1521N is equipped with proprietary network interface, called RDNET, for PC
interface through a device (RDNET control).
For this purpose, a proprietary communication protocol has been developed for receiving
and sending data; this connection permits real-time monitoring of the diffuser parameters,
such as output power, amplifier temperature, limiter status, etc...
It is also possible to select various equalizations or create new ones, set the desired
volume levels using the specific plug-in.
It is recommended to download DVA Network free software directly from
dB Technologies (www.dbtechnologies.com) in the special section
«Software & Controller»
It is recommended to download DVA USB Manager free software directly
from dB Technologies (www.dbtechnologies.com) in the special section
«Software & Controller»
DVA Composer Acoustical Simulation and aiming for DVA Systems
DVA Composer is a 2D software for aiming and simulating acoustical response of all line
arrays and Subwoofers from DVA Series.
The software allows you to set up a stereo system composed by tops and subs, and
simulates separately the acoustical response of both.
DVA Composer also gives to the user all the information about phase alignment between
flown systems and ground stacked subwoofers, as well as it suggests an optimized
aiming of the line arrays modules and their suggested EQ presets, in order to guarantee
maximum performances even for non-expert customers.
It is recommended to download DVA_Composer free software directly from
dB Technologies (www.dbtechnologies.com) in the special section «
Software & Controller»
PC
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