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d&b audiotechnik B22-SUB


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Product Overview

Multi-Purpose Omnidirectional Subwoofer

The B22-SUB is a high performance subwoofer designed for ground stacked applications, housing two long excursion 18” drivers built into a bandpass horn cabinet design. With high Sound Pressure Levels and an extended frequency response, the B22-SUB is ideal for any large format sound reinforcement application. When operated in INFRA mode, the B22-SUB can be used to complement other d&b subwoofers by extending the frequency response of the system. When three or any multiple of three B22 subwoofers are used, they can be positioned in a Cardioid Subwoofer Array, achieving impressive directivity control at lower frequencies and significantly reducing the energy radiating towards to the rear.

The cabinet is constructed from marine plywood, and has an impact resistant paint finish. The front of the loudspeaker cabinet is protected by a rigid metal grill backed by an acoustically transparent foam. The side panels of the B22-SUB both incorporate four handles, whilst four wheels are mounted to the rear. The enclosure features two runners to protect the bottom panel from scratching. Two correspondingly shaped recesses are incorporated into the top panel of each B22-SUB cabinet to accept these runners, preventing cabinet movement when stacked.


The d&b audiotechnik loudspeaker range is designed exclusively for operation with d&b amplifiers. These provide power as well as comprehensive control and protection functions tailored to achieve the performance, reliability and longevity associated with the d&b System approach. The d&b D80 amplifier is recommended to drive the B22-SUB. The d&b D12, D20 and 30D amplifiers can also be used with the appropriate loudspeaker configuration selected.





System data 

  • Frequency response (–5 dB standard): 37 Hz - 90 Hz
  • Frequency response (–5 dB INFRA mode): 32 Hz - 68 Hz
  • Max. sound pressure (1m, free field) [1]
    with D12/D20/30D: 140 dB
    with D80: 143 dB
  • Cabinets per channel D12/D20/D80/30D: 1


Loudspeaker data

  • Configuration: High performance subwoofer intended for ground stacked applications
  • Nominal impedance: 4 Ω
  • Power handling capacity (RMS/peak 10 ms): 1000/4000 W
  • Components: 2 x 18" driver with neodymium magnet
  • Connections:
    2 x NLT4 F/M
    optional 2 x EP5


Dimensions, weight

  • Dimensions (H x W x D): 585 x 1160 x 920 / 1046 mm, 23 x 45.7 x 36.2 / 41.2”
  • Weight: 106 kg (234 lb)


[1] SPL max peak test signal: pink noise with crest factor 4

Application information is presented for guidance only. d&b reserves the right to make any necessary changes to the products and the published specifications. As part of the ongoing development program d&b tries to maintain the highest degree of product compatibility.

Product Downloads

  • B22-SUB Mobile Sound Products Brochure PDF 4.8 MB
  • B22-SUB Data Sheet v1.1 PDF 0.4 MB
  • B22-SUB User Manual v1.1 PDF 0.8 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 B22-SUB.