SL-GSUB subwoofer

SL-GSUB subwoofer front

SL-GSUB subwoofer

Subwoofers

Large format cardioid subwoofer

  • Components 3 x 21"
  • Dispersion Cardioid
  • SPLmax 144 dB
  • Weight 132 kg / 291 lb

Article number Z0761

Where to buy

Product description

The SL-SUB and SL-GSUB are cardioid subwoofers to compliment the GSL and KSL Systems. The SL-SUB rigging hardware allows columns of up to 14 cabinets to be flown while the SL-GSUB is intended for ground stacked applications only. Both subwoofers are actively driven 2-way bass-reflex designs housing three long excursion 21" neodymium drivers. Two drivers face to the front while one radiates to the rear. The front and rear facing drivers operate in independent bass reflex chambers and are driven from separate amplifier channels. The cardioid dispersion pattern reduces unwanted energy behind the system, resulting in less excitation of the reverberant field to deliver highly accurate low frequency reproduction. The frequency response extends from 33 - 84 Hz / 30 - 65 Hz. The SL-SUB cabinet incorporates front and rear rigging strands while the SL-GSUB has no rigging components and is intended for ground stack purposes. The cabinets are constructed from marine plywood with an impact and weather protected PCP (Polyurea Cabinet Protection) finish. The front and rear of the subwoofers are protected by rigid metal grills backed by an acoustically transparent and water repellent fabric. Two runners extend from the front to rear to protect the bottom panel. Two correspondingly shaped recesses are incorporated in the top panel accepting the runners and preventing cabinet movement when subwoofers are stacked. The side panels incorporate four recessed handles and four heavy duty wheels are mounted on the rear of the subwoofers.

Amplifiers

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

Mobile


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)
33 Hz - 84 Hz
Frequency response (–5 dB INFRA mode)
30 Hz - 65 Hz
Max. sound pressure1 with D80/D90
144 dB
Cabinets per D80
2
Loudspeaker data
Nominal impedance front/rear
3/6 ohms
Power handling capacity front (RMS/peak 10 ms)
1000/4000 W
Power handling capacity rear (RMS/peak 10 ms)
500/2000 W
Components
3 x 21" driver
Connections
1 x NLT4 F
Dimensions / weight
Dimensions (h x w x d)
585 x 1300 x 9752 / 1100 mm
23.0 x 51.2 x 38.42 / 43.3"
Weight
132 kg
291 lb

1 1 m, free field, SPL max peak, Broadband signal IEC 60268, 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
KSL System brochure
Brochures
PDF
14.51 MB
English
02.05.2023
GSL System brochure
Brochures
PDF
14.30 MB
English
10.02.2020
GSL Introductory brochure
Brochures
PDF
3.11 MB
English
17.07.2019
SL-Series cables and adapters
Brochures
PDF
1.25 MB
English
09.09.2018
SL-SUB/SL-GSUB Datasheet
Datasheets
PDF
708 KB
English
16.07.2019
Architectural specifications SL-GSUB
Loudspeakers
TXT
1.75 KB
English
30.05.2020
Architectural specifications SL-Series
Loudspeakers
ZIP
14.25 KB
English
07.10.2019
SL-SUB/SL-GSUB Manuale d'uso 1.5 it
Manuals
PDF
1.48 MB
Italiano
22.09.2026
SL-SUB/SL-GSUB Manual 1.5 en
Manuals
PDF
1.47 MB
English
04.09.2026
GSL/KSL Rigging manual 1.16
Manuals
PDF
23 MB
English
09.06.2026
d&b Revit Families - SL-Series 1.4
Revit files/BIM
ZIP
89 MB
29.08.2025
d&b Revit Families - SL-Series - Release notes 1.4
Revit files/BIM
PDF
1.33 MB
English
29.08.2025
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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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