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d&b audiotechnik 27S-SUB


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Product Overview

The 27S-SUB is a compact high performance cardioid subwoofer powered by a single amplifier channel and is for use with the xS-Series and xA-Series loudspeakers.

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 bandpass design radiating to the rear. It can be used stand-alone, stacked or individually flown.  The loudspeaker cabinets and most accessories are also available with the Special Colour (SC) option that can be executed in all RAL colours, whilst the Weather Resistant (WR) option provides an IP34 rating, and enables operation of loudspeakers in changing ambient conditions.

The 27S-SUB is driven by either the d&b D6 or D12 dual channel power amplifiers configured for the 27S-SUB. More detailed information on specific loudspeaker setups with d&b amplifiers is available either in the relevant loudspeaker or amplifier manuals.



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 and sports halls. The front of the loudspeaker cabinet is protected by a rigid metal grill backed by an acoustically transparent foam. Incorporated into the side panels are a pair of M10 threaded inserts and into the rear panel are two NL4 connectors as well as a two pole screw terminal block.


  • System data           
  • Frequency response (–5 dB standard)           40 Hz - 140 Hz
  • Frequency response (–5 dB 100 Hz mode)           40 Hz - 100 Hz
  • Max. sound pressure (single cabinet, 1 m, free field)           
  • with D6           128 dB
  • with D12           131 dB
  • Loudspeaker data           
  • Nominal impedance           6 ohms
  • Power handling capacity (RMS/peak 10 ms)           500 W/2000 W
  • Components           15” driver with neodymium magnet
                12” driver with neodymium magnet
  • Connections           2 x NL4
                screw terminal block
  • Pin assignments           NL4: 2+/2–
  • Weight           41 kg (90 lb)

Product Downloads

  • 27S-SUB xS-Series Brochure PDF 4.6 MB
  • 27S-SUB Installation Sound Products Brochure PDF 7.1 MB
  • 27S-SUB User Manual v1.2 PDF 0.3 MB


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*Prices are in AUD, include GST and are subject to change. Please call National Audio for pricing and availability on the 27S-SUB.