Free Shipping on every single order. Period.

DB Technologies DVA S1521N 21" Active Subwoofer, 1500W

Sale price
Regular price
You save
$2,889 (35%)

Free Shipping on every single order. Period.

High demand, ships in 11-20 business days
American Express
Apple Pay
Diners Club
Meta Pay
Google Pay
Shop Pay
Important Shipping Details

Due to fluctuations in demand and stock availability, lead times for products marked as "In stock and ready for shipping" are subject to change. In general, products will fit into one of these 3 categories:

- Most products are in stock and ready to ship

- Some may take anywhere from 11-20 days to ship

- Very few will take 30+ days to ship due to backorder

- Shipping is always FREE regardless of the lead time

Please review our Shipping Policy here or contact

Frequently Bought Together

Free Shipping

on every single order

Fast Delivery

domestic orders

All Star Service

we're here for you

Price Matching

match our competitors


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.


  • 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)

Recommended for You

Shop by Application

House of Worship

Meeting Rooms

Home/Studio Recording