d&b audiotechnik 27A-SUB Compact Subwoofer

Compact, flyable 2,000W subwoofer with dual neodymium long-throw drivers and integrated rigging system


The d&b audiotechnik 27A-SUB is a compact, flyable subwoofer with dual neodymium long-throw drivers in an impact resistant, bass-reflex cabinet with an integrated rigging system in the side panels.

The 27A-SUB is a compact, flyable subwoofer built for use with d&b audiotechnik xA-Series and xS-Series loudspeakers. A high-performance, 2,000W (peak) design with a maximum SPL of 132dB, the cabinet houses two long excursion neodymium drivers in an integrated cardioid setup: a 15″ driver in a bass-reflex design facing to the front and a 12″ driver in a two chamber band-pass design radiating to the rear. It can be used in stand-alone, stacked, or as a base for a mixed ground stack. The 27A-SUB can also be combined with 10A and 10AL loudspeakers in vertical flown arrays. The enclosure is constructed from marine plywood with an impact resistant black paint finish and is Ball Impact Resistant according to DIN 18032-3 for schools, sports arenas, and multipurpose halls.

D&b audiotechnik 27A-SUB—At a Glance:

  • Installation-specific, cardioid flyable compact subwoofer
  • 15″ and 12″ front- and rear-facing (respectively) long-throw neodymium drivers
  • Bass-reflex design
  • Cardioid dispersion
  • Use in standalone, stacked, or as a base for a mixed ground stack
  • Integrated rigging system for vertical arrays
  • 131dB maximum SPL

D&b audiotechnik 27A-SUB—Parsing the Details

The front of the loudspeaker cabinet is protected by a rigid metal grille backed by an acoustically transparent foam. The side panels have an integrated rigging system and the rear panel incorporates two Neutrik NL4 speakON connectors, as well as a two-pole screw terminal block. The loudspeaker cabinets and most accessories are also available with the Special Color (SC) option that can be executed in all RAL* colors, whilst the Weather Resistant (WR) option provides an IP55* rating, and enables operation of loudspeakers in changing ambient conditions.

*RAL is a color-matching system that defines standard colors for varnish, powder coating, and plastics. It’s the most popular Central European color standard used today. 

**The IP Code or International Protection Rating, sometimes also interpreted as Ingress Protection Rating. IP55: Protected from limited dust ingress. Protected from low-pressure water jets from any direction.  

27A-SUB rigging components  

27A-SUB cabinets are connected to form a vertical array each using the Z5418 Connector plates xA-SUB. Up to four 27A-SUB cabinets can be connected. When integrated at the top of a 10A or 10AL array, up to two 27A-SUB cabinets can be combined with up to six 10A/10AL cabinets. Vertical arrays are supported using the Z5414 Flying bar xA and the Z5413 Flying bar connector plates xA.

Compatible amplifiers

The d&b amplifiers are designed specifically to power d&b loudspeakers, forming the heart of the d&b System. They incorporate digital signal processing for comprehensive loudspeaker management, switchable filter functions, remote capabilities, and user-definable controls to fulfill the exact needs of each application.

The d&b 30D amplifier is recommended to drive the 27A-SUB. The d&b D20, D80, 10D, and D6 can also be used.

27A-SUB applications:

  • Theater and Opera
  • Houses of Worship
  • Other (e.g. Edman Chapel, Wheaton College, Illinois)

For assistance ordering or configuring a d&b audiotechnik system with 27A-SUB subwoofers and xA-series loudspeakers, call or chat online with your Parsons Audio Professional today.


d&b audiotechnik 27A-Sub Specifications:

System data

  • Frequency response (-5 dB standard): 40Hz – 140Hz
  • Frequency response (-5 dB 100 Hz mode): 40Hz – 100Hz

Max. sound pressure*

  • D6/10D amplifier: 128 dB
  • D20/30D amplifier: 131dB
  • D80 amplifier: 131dB
  • Cabinets per amplifier channel: 2

Loudspeaker data

  • Configuration: Installation-specific flyable compact subwoofer
  • Nominal impedance: 6 ohm
  • Power handling capacity (RMS/peak 10ms): 500/2000W
  • Components: 15″ driver with neodymium magnet (front); 12″ rear driver with neodymium magnet (rear)
  • Connections: 2 x NL4, screw terminal block

Dimensions / Weight (H x W x D) (Approx.)

  • Height: 19-3/16″
  • Width: 22-13/16″
  • Depth: 27-5/8″
  • Weight: 90 lb. / 41 kg

* 1 m, free field, SPL max peak test signal: pink noise with crest factor 4


Additional information

Weight 90 lbs
Dimensions 28 × 23 × 20 in