dB TECHNOLOGIES DVA S1518N - Manual (Page 7)

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DESCRIPTION
DVA S1518N
The DVA S1518N 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.
The box of the subwoofer DVA S1518N is made from birch wood, designed for medium to
large environments, with a "BAND PASS" solution which allows to obtain high sound
pressure and a low bass.
The subwoofer has a rectangular shape; at the top there is a pedestal support M20 and it is
provided with 6 metal handles (3 for each side).
At the top there are as well two inserts, to fasten (groundstack) the flybars DRK10 or
DRK20, for the speakers DVA T4 and DVA T12.
The speaker can also be hung to the flybars DRK10 or DRK20 through the optional
bracket kit SRK-10.
To facilitate the transport you can fit 4 wheels (diameter 100mm) to the rear, (KIT SWK-18)
or use the appropriate dolly fastened with two PINs (DVA S1518N and DVA S2585N dolly).
Both woofers DVA S1518N and DVA S2585N are equipped with proprietary network
interface, called RDNET, for PC interface through a device (RDNET hub).
For this purpose, a 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.
/Delay
For more details refer to the information about the RDNET controller.
USB
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 that
must be requested from the manufacturer and installed on a computer.
The update must be done when the amplifier module is not powered and the «SUB
Phase
» rotary potentiometer must be set to 4.5mS.
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RDNET hub PC
PC
DVA S2585N
The active subwoofer DVA S2585N is equipped with
an amplifier module DIGIPRO 1500S and an
amplifier module DIGIPRO 1000S, both of the
DIGIPRO® G2 series, for a total power of 2500W
RMS (1000W + 1500W)
The subwoofer has been designed as supercardioid
system with 2 separated acoustic chambers:
- the front section in BAND-PASS configuration, is
equipped with a 18" woofer (4" RCF coil) powered by
the amplifier module DIGIPRO 1500S
- the rear section, as well in BAND-PASS
configuration, is equipped with a 15" woofer (4" RCF
coil) powered by the amplifier module DIGIPRO
1000S
The power supply circuits of the amplifiers DIGIPRO® G2 are designed to work in full-
range mode; SMPS (Switched-Mode Power Supply) and PFC (Power Factor Correction)
technology enable operation with supply voltages from 100V to 240V, ensuring the same
acoustic performance even with fluctuating, non-stabilized supply lines.
The digital pre-amplifier with DSP (Digital Signal Processing) manages acoustic
components, delays, frequency response and limiters.
The system is designed for medium to large environments; the placement of the
subwoofer in front of the stage or on its sides prevents low frequencies radiation from the
rear of the speaker, thus avoiding microphone feedbacks, mechanical noises of the load
bearing structures and sound distortions due to low frequencies loading below the stage.
The DVA S2585N provides up to three operating modes, (cardioid, supercardioid and
hypercardioid), selectable through the RDNET interface.
A detailed description of the topic is included in a separate chapter.
The subwoofer has a rectangular shape; at the top there is a pedestal support M20 and it
is provided with 6 metal handles (3 for each side).
At the top there are as well two inserts, to fasten (groundstack) the flybars DRK10 or
DRK20, for the speakers DVA T4 and DVA T12.
The speaker can also be hung to the flybars DRK10 or DRK20 through the optional
bracket kit SRK-10.
A dedicated dolly (DVA S1518N and DVA S2585N dolly), which is attached to the rear with
two PINs, is provided to ease transport.