d&b audiotechnik 27A-SUB Compact Subwoofer


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.


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d&b audiotechnik 27A-SUB Compact Subwoofer

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 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, the rear panel incorporates two Neutrik NL4 speakON connectors and 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, while the Weather Resistant (WR) option provides an IP55* rating and enables the 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 and 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.


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

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