XSLi-GSUB subwoofer

White electronic equipment enclosure with ventilation grilles and control panel on the front. Designed for housing electronic components.White audio speaker with a perforated front grille, designed for sound amplification in various settings.
White audio speaker with a perforated front grille, designed for sound amplification in various settings.
White electronic equipment enclosure with ventilation grilles and control panel on the front. Designed for housing electronic components.

XSLi-GSUB subwoofer

Subwoofers

Installation specific medium format cardioid subwoofer

  • Components 18"/12"
  • Dispersion Cardioid
  • SPLmax 137 dB
  • Weight 62 kg / 136 lb

Article number Z0779

Where to buy

Product description

The XSLi-GSUB is an installation specific cardioid subwoofer for the XSLi System. It can be used to supplement XSLi8 and XSLi12 loudspeakers, either flown (XSLi-SUB) or ground stacked (XSLi-GSUB).

The XSLi-GSUB is an actively driven, 2-way bass-reflex design housing two long excursion neodymium drivers; an 18” driver faces to the front of the cabinet, and a 12” driver radiates to the rear. The front and rear facing drivers operate in independent bass-reflex chambers and are driven from separate amplifier channels. Two XSLi-GSUBs can be linked to a pair of D80 / D40 amplifier channels.

The subwoofer’s 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 37 Hz to 110 Hz (35 Hz to 85 Hz in INFRA mode). Two XSLi-GSUBs can be linked to a pair of 40D amplifier channels.

The cabinets are constructed from marine plywood and have an impact and weather protected PCP (Polyurea Cabinet Protection) finish.  The front and rear of the cabinet is protected by a rigid metal grille backed by an acoustically transparent and water repellent fabric.

Amplifiers

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

Installation


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)
37 Hz - 110 Hz
Frequency response (–5 dB INFRA mode)
35 Hz - 85 Hz
Max. sound pressure1
with D40/D80/D90/40D
137 dB
Cabinets per D40/D80/D90/40D
4
Loudspeaker data
Nominal impedance front/rear
8/16 ohms
Power handling capacity front (RMS/peak 10 ms)
700/1500 W
Power handling capacity rear (RMS/peak 10 ms)
400/800 W
Splay angle settings
0° and 2.5°
Components
1 x 18" front LF driver
1 x 12" rear LF driver
Connections
NLT4 F/M
Phoenix option
Dimensions / weight
Dimensions (h x w x d)
565 x 700 x 773 mm
22.2 x 27.6 x 30.4"
Weight
62 kg
136 lb

1 1 m, free field, SPL max peak, test signal: pink noise with crest factor 4, one speaker driven

Title
Category
File type
Size
Language
Release
 
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
XSLi System brochure
Brochures
PDF
15.35 MB
English
09.06.2022
XSL-System Introductory brochure
Brochures
PDF
1.54 MB
English
28.11.2021
XSLi-GSUB Datasheet 1.1
Datasheets
PDF
1.17 MB
English
14.10.2026
Architectural specification XSLi-GSUB 1.1
Loudspeakers
TXT
1.45 KB
English
14.10.2026
NEW
XSLi-SUB/XSLi-GSUB Manuale d'uso 1.5
Manuals
PDF
1.26 MB
Italiano
20.10.2026
XSLi-SUB/XSLi-GSUB Manual 1.5
Manuals
PDF
1.26 MB
English
07.10.2026
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