Beschrijving
Active Subwoofer, 21? Bassreflex
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. Made of durable birch multiplex 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.
Top-notch 21? woofer
Serving as the unit?s transducer is a state-of-the-art 21? woofer with neodymium magnets and a 4.5? voice coil. This combination of high-quality materials and sophisticated magnetic drivers yields some pretty impressive results. Even very low bass frequencies are rendered with pinpoint precision and hair-trigger transient response, treating audiences to a breathtaking audio experience.
Specifications
Technical data
| Speaker Type | Active Bassreflex-Subwoofer |
Acoustical data
| Frequency Response [+/- 3dB] | 30 – 110 Hz |
| Max SPL | 139 dB |
| Directivity | Omnidirectional, Cardiod Option with DSP setup |
| LF | 21 “ |
| Type LF | RCF Neodymium |
| Voice Coil LF | 4.5 “ |
Amplifier
| Amp Technology | digipro |
| 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 | DSP, steps of 5 Hz |
| Slope LF-MF | 24 dB/Octave |
Input Section
| Signal Input | 1x XLR fem, sym. |
| Network | RDnet, 2x RJ45 |
| Signal Output | 1x Link XLR, male, sym 1x X-Over Out, XLR male, sym. |
| Power Socket | Powercon In/Out |
| Voltage Range | 90 – 240 V |
Mechanics
| Housing | Multiplex birch plywood |
| Housing Design | Rectangular |
| Color | Black |
| Surface Texture | Textured acrylic lacquer |
| Handles | 3x Per Side |
| Pole Mount | M20 |
| Front Grille | 1.5mm metall grille |
| Rigging Points | 2xM10 on top to fix DRK10/20 rigging frames |
| Flytracks | No |
| Castors | Optional |
| Width | 580 mm (23.2 in) |
| Height | 800 mm (32 in) |
| Depth | 720 mm (28.8 in) |
| Weight | 52.5 kg (115.74 lbs) |
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