L SUB 4000

L SUB 4000 is a powerful 18” double vented bandpass subwoofer. Compatible with all LINEAR 5 fullrange speakers and mid/high units, its powerful low end – ranging from 30 to 100 Hertz – is totally and powerfully impressive. L SUB 4000 A can also serve as a sub-low add-on to LINEAR SUB 2000 to beef up the bottom end when required (optional frequency separation). Filter presets are available for Lab.gruppen IPD and PLM 12K44 controllers.

  • Powerful and versatile 18” subwoofer
  • Rugged wooden enclosure of birch multiplex: 15/18 mm, 9/13 ply
  • Power handling program: 2400 W
  • 31Hz – X-Over
  • 137 dB half space
  • 1 x 18” speaker with 4” voice coil
  • Compatible with all LINEAR 5 fullrange speakers and mid/high units
Ideal add-on for setups using LINEAR 5 LTS A
  • Sub-low add-on to LINEAR SUB 2000
  • Filter presets available for Lab.gruppen IPD and PLM 12K44 controllers
  • Made in Germany
L SUB 4000
Power-handling nominal (RMS)1200 W
Power-handling, program2400 W
Power-handling, peak4800 W
Nominal impedance4 ohms
Max SPL135 dB half space (@ 10% THD)
Max SPL peak137 dB half space (@ 10% THD)
Sensitivity 1W/1m106 dB half space
Frequency response +/- 3 dB39 Hz - X-over
Frequency response -10 dB31 Hz - X-over
LF Speaker1x 18" (4 ohms) with 2.5" voice coil featuring advanced ventilated voice coil gap (Neodymium)
Crossover frequency100 Hz, active X-over with controller amp (can be set lower when used as a sub-low)
Connections2x Speakon NL4, pin assignment switchable between 1+/1- and 2+/2-
Pole mount2x M20
Handles8, integrated
Castersoptional 100 mm
EnclosureBirch multiplex
Grille2 mm metal grille backed with black acoustic foam
FinishAcrylic enamel, black
Optional accessoriesProtective cover, M20 Distance Pole Add-On, 100 mm casters, Wheelboard, TiltUnit
Dimensions (WxHxD)91 x 51 x 81 cm
Weight57.1 kg / 125.9 lbs
Satellite Add-On M20 Speakon®
A special accessory kit for deploying satellite speakers and subwoofers on M20 poles, the Satellite Add-On Package includes two aluminum mounting poles and two 3-metre long speaker cables for Speakon® connectors, all packed away neatly in a nylon carrying bag.

Adjustable pole (steel) M20

Height adjustable and lockable speaker mounting pole with M 20 thread. Extra strong steel construction holds cabinets up to 40kg. Adjustable from app. 90cm – 150cm. Weight 2,3kg,

(Set of 2 x DFP)

Double flange plate. For attaching two distance poles with M20 threads to one subwoofer. Delivers acoustically correct, horizontal clusters of L5 LTS units in stacking setups.

Tilt Unit

The tilt unit permits perfect satellite-to-audience alignment and tilt protection using a full stack system.

Protective Covers

Padded covers are available as optional accessories for all Linear 5 models.

WB-4 Wheel Board

Professional wheel board for L SUB 4000 (A). Four 100 mm casters (two with braking mechanisms), two integrated handles.

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