dBTechnologies DVA S1521N 21" Active Bass-Reflex Subwoofer
Brand
D B TECHNOLOGIES
Reach down into ultra-low sub-bass frequencies with the dBTechnologies DVA S1521N Active Subwoofer. Featuring a massive 21-inch neodymium woofer with a 4.5-inch voice coil in a tuned bass-reflex cabinet, this active sub reproduces subterranean frequencies starting at 30 Hz with an outstanding maximum output of 139 dB SPL. Engineered to extend the low-frequency limit of large-scale line array systems, it is the ideal sub-bass engine for concert touring rigs, festival stages, and large live sound installations.
Deliver massive, ultra-deep sub-bass frequencies and precision network control to your largest touring rigs and professional sound reinforcement systems with the dBTechnologies DVA S1521N, a high-performance active bass-reflex subwoofer engineered for elite live music venues and large-scale audio production.
Key Features & Engineering
- Digipro® G2 Class-D Amplification: Powered by an advanced 1500W RMS digital amplifier with a high-efficiency switched-mode power supply (SMPS) and Power Factor Corrector (PFC), ensuring exceptional thermal performance and stable power delivery worldwide.
- Massive 21-Inch Transducer: Houses a colossal 21" woofer featuring a 4.5" voice coil inside a durable multiplex plywood cabinet, rendering ultra-low bass frequencies with pinpoint precision, hair-trigger transient response, and a maximum SPL of 139 dB.
- Advanced Network & DSP Control: Features an on-board 56-bit DSP controller with 24-bit/96 kHz AD/DA converters, variable crossover frequencies, precise limiters, adjustable delay settings, and full RDNet compatibility for real-time remote supervision and management.
- Tour-Ready Enclosure: Finished in a tough black textured lacquer and equipped with six integrated carrying handles, an M20 pole mount, top pick-points for DRK-10/20 rigging frames, and rear bushings for transport casters.
Technical Specifications
| Speaker Type | Active Bass-Reflex Subwoofer |
|---|---|
| Frequency Response [+/- 3 dB] | 30 - 105 Hz |
| Max SPL | 139 dB |
| Low Frequency Driver (LF) | 21" Woofer (4.5" Voice Coil) |
| Amplifier Technology | Digipro® G2 Class-D with SMPS & PFC |
| RMS Power | 1500 W |
| Controller | DSP 56-bit with RMS, Peak, and Thermal Limiters |
| Network Integration | RDNet Ready for Bi-Directional Control and Supervision |
| Crossover Frequencies | 60 - 105 Hz (5 Hz steps, 24 dB/Octave slope) |
| Enclosure Material | Multiplex Plywood |
| Rigging & Mounting | Top pick-points for DRK-10/20 frames; M20 pole mount on top |
| Dimensions (W x H x D) | 580 mm x 800 mm x 720 mm (23.2 in x 32 in x 28.8 in) |
| Weight | 52.5 kg (115.74 lbs) |
Pro Audio Solutions at Gigstore UAE
Complete your professional touring or permanent sound installation rig with genuine pro audio equipment from Gigstore—your trusted destination for industry-standard sound solutions across Dubai, Abu Dhabi, and the UAE. Experience professional support, authentic gear, and reliable regional delivery.
| Brands | D B TECHNOLOGIES |
|---|
