DVA S1521N
DVA S1521N
DVA S1521N
DVA S1521N
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DVA S1521N
DVA S1521N
The DVA S1521N is a powered 21“ subwoofer housed in a bass reflex enclosure that we tuned for accurate, ultra low-frequency response. It readily integrates into large DVA and DVX Series PA systems as a sub-bass unit or as a stacked subwoofer.
The DVA S1521N is a powered 21“ subwoofer housed in a bass reflex enclosure that we tuned for accurate, ultra low-frequency response. It readily integrates into large DVA and DVX Series PA systems as a sub-bass unit or as a stacked subwoofer.
DVA S1521N, Top-notch 21“ woofer

Serving as the unit's transducer is a state-of-the-art 21" woofer with 4.5" voice coil.
This combination of high-quality materials and sophisticated magnetic drivers fields some pretty impressive results.
Even very low bass frequencies are rendered with pinpoint precision and hairtrigger transient response, treating audiences to a breathtaking audio experience.
Made of durable multiplex housing covered in robust black textured lacquer, the high-quality housing provides six carrying handles, an M20 pole mount, and bushings on the rear panel that accept casters. 
Pick-points for attaching DRK-10 and DRK-20 harnesses are built into the top panel to enable easy, safe stacking.
Technical Data
Speaker Type
Active Bassreflex-Subwoofer
Acoustical data
Frequency Response [+/- 3dB]
30 - 105 Hz
Max SPL
139 dB
Directivity
Omnidirectional, Cardiod Option with DSP setup
LF
21 "
Voice Coil LF
4.5 "
Amplifier
Amp Technology
Digipro® G2
Amp Class
Class D
Power Supply
1.5 kW SMPS
LF Amp
1500 W RMS
Cooling
Convection
Processor
Controller
DSP 56 bit
AD/DA Converter
24bit / 96 kHz
System Presets
X-Over,Delay
Phase
0, 180 °
Limiter
RMS, Peak, Thermal
Delay Option
0-4.5 ms internal
Crossover Frequency LF-MF
60-105Hz | steps of 5Hz
LF-Xover out slope:
24 dB/Octave
Mechanics
Housing
Multiplex plywood
Housing Design
Rectangular
Handles
3x Per Side
Accessory
Dolly, Wheels 100mm,
Dust Cover, Rain Cover
Pole Mount
M20
Rigging Points
2xPick Points on top to fix
DRK10/20 rigging frames
Width
580 mm (23.2 in)
Height
800 mm (32 in)
Depth
720 mm (28.8 in)
Weight
52.5 kg (115.74 lbs)
Features
  • VARIABLE CROSSOVER FREQUENCIES
  • PRECISE LIMITER FUNCTIONS
  • ON BOARD DELAY FOR PERFECT TIME ALIGNMENT
  • PRESET FOR CONFIGURING CARDIOD SYSTEMS
  • SETTINGS ACCESSIBLE VIA ROTARY ENCODER
  • X-OVER OUT
  • RDNET NETWORK PORT
Video
 
 
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Digipro® G2
System of digital amplification engineered by dBTechnologies.
Based on the previous Digipro project, the newest G2 versions' efficiency has been improved by cutting down on consumption and heating.
The introduction of a 'new avant-garde' component, a better s/n relation and a lighter weight, confer a superior dynamism to the new Digipro G2 digital speakers.
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dBTechnologies Composer
A software able to supply each and every necessary information on the installation of the DVA and VIO systems depending on the necessities of the event.
Visit Composer to download the software and get more infos.
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PFC (Power Factor Corrector)
An integration of the power supply, PFC allows real time correction of the power factor in order to optimize the function of the Digipro and Digipro G2 digital speakers.
Toghether with the full range supply system it enables the systems performances to remain unaltered if tension supply alterations occur.
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RD-Net
Digital net for bi-directional control of connected devices.
The acronym RD-Net originates from the development, on behalf of RCF and dBTechnologies, of a universal network which allows adjustments in real time and supervision of all the connected systems, using cables based on ehternet cat 5 wires.
With the specific software and the interfaces control 2 and control 8, a complete command of the acoustic system will be possible allowing real time supervision on each eletrical component of the various speakers.

RDnet allows you to

Monitor levels, limiters, and temperatures
Select system presets
Configure setups off-line
Mute units
Group modules and assigning group EQ, delay and phase  
Test individual components
Automatically address system components   
Tap into LAN and USB interfaces  
Extend the network via wireless LAN access points.
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X-over
The cross over (X-over) is the intersection point of different frequencies from different ranges.
In sound systems it delimitates the areas in which low, mid, and high frequencies work.
A cross over is also an electronic object, active or passive, which comands the division of the frequencies' areas.
In other words, it separates an incoming full range signal into two or more areas of frequency.

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dBTechnologies Network
Compatible with dBTechnologies Network
dBTechnologies Network is the software to control remotely dBTechnologies products using RDNet Protocol.
Visit Network page to download the software and get more infos.
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