Subwoofers

Cardioid subwoofer

Components 15"/12"
Dispersion Cardioid
SPLmax 131 dB
Weight 44 kg / 97 lb

Article number Z0610

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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 following current d&b amplifiers can be used to drive the loudspeaker:

Mobile

D40 audio processor with a touchscreen display and control buttons, designed for professional audio applications.

D40

D80

D25 audio device with a touchscreen interface, featuring various control options and indicators for audio settings.

D25

D90 audio processor with a touchscreen interface, featuring multiple input/output options and control buttons.

D90

Installation

10D

Black audio processor with a touchscreen display, labeled "40D," showing menu options and settings for audio management.

40D

Black electronic device labeled "25D" with a touchscreen display showing various settings and options.

25D

For further information on which heritage d&b amplifiers can be used to drive the loudspeaker, please refer to the current release notes on the amplifier firmware.

System data

Frequency response (-5 dB standard)

40 - 150 Hz

Frequency response (-5 dB 100 Hz mode)

40 - 100 Hz

Max. sound pressure¹
with 10D
with D25/25D
with D40/D80/D90/40D

128 dB
131 dB
131 dB

Cabinets per amplifier channel

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 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 1 m, free field, SPL max peak test signal: pink noise with crest factor 4, one speaker driven
² dimensions without wheels

Title

Category

File type

Size

Language

Release

2D DWG CAD package 1.4

2D CAD drawings

ZIP

388 MB

25.02.2025

2D DWG CAD package Release notes 1.4

2D CAD drawings

PDF

626 KB

English

25.02.2025

3D DWG CAD package release notes 1.5

3D CAD drawings

PDF

346 KB

English

07.05.2026

3D DWG CAD package 1.5

3D CAD drawings

ZIP

252 MB

07.05.2026

The E-Series brochure

Brochures

PDF

4.05 MB

English

02.05.2023

The T-Series brochure

Brochures

PDF

6.03 MB

English

02.05.2023

E-Series cables and adapters

Brochures

PDF

704 KB

English

30.01.2014

EU Declaration of Conformity (CE) Subwoofer

Declarations of conformity

PDF

251 KB

English

04.11.2023

EU Declaration of Conformity (CE) E-Series

Declarations of conformity

PDF

250 KB

English

11.10.2021

Architectural specifications B4-SUB

Loudspeakers

TXT

1.71 KB

English

30.05.2020

B4-SUB Manual 1.2

Manuals

PDF

688 KB

English

14.02.2017

d&b Revit Families - E-Series / B4 / B8 1.1

Revit files/BIM

ZIP

16.27 MB

29.01.2020

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.

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