L SUB 4000 A

L SUB 4000 A is a flexible 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 in the range of 30 to 70 Hertz.

  • Powerful and versatile 18" subwoofer
  • Rugged wooden enclosure of birch multiplex: 15/18 mm, 9/13 ply
  • 1200 W
  • 31 Hz – X-Over
  • 137 dB half space
  • 1 x 18" 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 (A)
L SUB 4000 A
Max SPL135 dB half space (@ 10% THD)
Max SPL peak137 dB half space (@ 10% THD)
Max SPL calculated138 dB half space
Frequency response +/- 3 dB39 Hz – X-Over
Frequency response -10 dB31 Hz – X-Over
Power Rating1200 W
AmplifierClass D
Active protection circuitsUndervoltage Protection, Thermoprotection, Short Circuit Protection, Overcurrent Protection, Subsonic 24 dB/oct., Peak Limiter
LF Speaker1x 18" featuring advanced ventilated voice coil gap
Cut-off Frequency active70 Hz /100 Hz variable with 24 dB/oct.
Connections2x XLR–1/4"-Combo In, 2x XLR Thru, 2x XLR Mid/High Out
Input Sensitivity+4 dBu @ Gain center-notched
Pole mount2x M20 (K&M)
Handles8x HK Audio MultiGrip
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, tilt unit
Dimensions (WxHxD)91 x 51 x 81 cm
Weight59 kg/130.1 lbs

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

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.

Satellite Add-On Package XLR

A special accessory kit for deploying active satellite systems using M20 poles, the Satellite Add-On Package comprises two aluminum mounting poles and two 3-metre long XLR cables in a nifty nylon carrying bag.

WB-4 Wheel Board

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

Related products