B4 subwoofer

B4 subwoofer front
B4 subwoofer back
B4 subwoofer front
B4 subwoofer back

B4 subwoofer

Subwoofers

Cardioid subwoofer

  • Components 15"/12"
  • Dispersion Cardioid
  • max SPL 131 dB
  • Weight 44 kg / 97 lb

Product description

The B4-SUB is an actively driven cardioid subwoofer powered by a single amplifier channel. It 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. The cardioid dispersion pattern resulting from this approach avoids unwanted energy behind the system that greatly reduces the reverberant field at low frequencies and provides the greatest accuracy of low frequency reproduction. The B4 subwoofer can only be used in a ground stacked setup. The B4-SUB cabinet is constructed from marine plywood, has an impact and weather resistant paint finish and a pair of handles. An M20 threaded flange in the top panel accepts the d&b Loudspeaker stand winder M20. The loudspeaker cabinet is also available in Special Colour (SC) options.

Amplifiers

The d&b D20 and 30D amplifiers are recommended to drive the B4-SUB. The d&b D80, 10D and D6 can also be used.

D20

30D

Architectural specifications for detailed project planning

Do you require architectural specifications? For a d&b system or a specific d&b Series? Here are the most important technical specifications ready for download.

System data
Frequency response (-5 dB standard)
40 - 150 Hz
Max. sound pressure (1m, free field)1
with D6/10D
with D20/30D
with D80

128 dB
131 dB
131 dB
Cabinets per amplifier channel
2
Loudspeaker data
Configuration
Cardioid subwoofer
Nominal impedance
6 Ω
Power handling capacity (RMS/peak 10 ms)
500/2000 W
Components
15" / 12" driver
Connections
2 x NLT4 F/M
optional 2 x EP5 or 2 x NL4
Dimensions / weight
Dimensions (H x W x D)
476 x 580 x 7002 / 800 mm
18.7 x 22.8 x 27.73 / 31.6"
Weight
44 kg
97 lb

1 SPL max peak test signal: pink noise with crest factor 4
2 dimensions without wheels

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.

 
Release
Category
File type
Size
Language
 
NEW The T-Series brochure
08.11.2018
Brochures
PDF
6 MB
English
NEW The E-Series brochure
06.11.2018
Brochures
PDF
5 MB
English
3D CAD drawings - B4-SUB
11.05.2018
CAD Data 2D/3D
ZIP
231 KB
2D CAD drawings - B4-SUB
09.05.2018
CAD Data 2D/3D
ZIP
161 KB
EU Declaration of Conformity (CE)
06.03.2018
Other documentation
PDF
53 KB
English
B4-SUB Manual 1.2
14.02.2017
Manuals
PDF
688 KB
English
E-Series cables and adapters
30.01.2014
Brochures
PDF
704 KB
English
Similar applications
All categories

d&b applications

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.
view all applications
Looking for a sales contact in your country?find a reseller now