B2 subwoofer

B2-SUB subwoofer

B2 subwoofer

Double band pass subwoofer

  • Components 2 x 18"
  • SPLmax 139 dB


The B2 subwoofer with its high output bandpass horn design and extremely high SPL is ideal for extended bass requirements. It is configurable to be either an infrabass for the C4 system or a high output, alternative subwoofer for the F1222 or C7 systems. When used with a C4 system, d&b recommend a ratio of four C4-SUBs to one B2. The B2 cabinet is constructed from marine plywood, has an impact resistant paint finish and eight integral steel handles. The front of the subwoofer cabinet is fitted with catches at the sides for securing an optional wooden lid, and mounted on the rear are four heavy duty wheels.
System data
Frequency response (-5 dB)
37 - 90 Hz1/32 - 68 Hz2
Cabinets per D12
Max. sound pressure3
with D12/D20
with D80

1394/1365 dB SPL
1394/1365 dB SPL
Cabinets per D20/D80
Loudspeaker data
Power handling capacity (RMS/peak 10 ms)
600/2400 W
2 x 18" driver
Dimensions / weight
Dimensions (H x W x D)
1160 x 580 x 920 mm6
45.6 x 22.8 x 36.2"6
102 kg
225 lb

1 standard mode
2 INFRA mode
3 1 m, free field, SPL max peak test signal: pink noise with crest factor 4
4 standard mode
5 INFRA mode
6 dimensions without wheels

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Mobile application or fixed installation? Indoors or outdoors? Large or small? d&b provides tailored-made solutions for each and every requirement. What is more, the dedicated simulation software optimizes the planning of the system installation.
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