Measuring 365mm high x 423mm wide x 450mm deep and weighing 14.5Kg, the eLS400 sub uses a high excursion 12-inch Neodymium driver in a cabinet constructed in a bass-reflex design. Constructed from 15mm baltic birch plywood, the cabinet is protected by a strong polyurethane based coating and the Magnelis® front grille is covered by a black UV and fire resistant cloth. Achieving a peak SPL of 130dB with a frequency range extending down to 45Hz, the eLS400 features convenient rigging points and two pairs of In/Out connectors on pitch screw terminal blocks with an IP cover.

Key Features

  • Installation sub with high-excursion 12-inch woofer
  • Ideal companion to ePS6 and ePS8 installation loudspeakers
  • Compact design that can be stacked or flown with ePS6 or ePS8 companion main speaker
  • Discrete, easy to integrate design
  • Lightweight (14.5kg / 32lbs) using neodymium driver and birch plywood enclosure
  • Solid construction using 15mm birch plywood enclosure
  • IP55 protection level
  • Comprehensive range of accessories for deploying the eLS400 in a wide variety of applications


Frequency Response @-6 dB45 Hz to 150 Hz
Sensitivity 1W@1m102 dB SPL Nominal
Peak SPL@1m130 dB
Crossover Frequency45-85 Hz, 45-120 Hz, 45-150 Hz
Nominal Impedance6 Ω
Recommended Power450 to 700 Watts / 6 Ohms (requires a 700 to 1000 Watts / 4 Ohms amplifier)


LF Component1 x Neodymium 12" 6 Ohms long excursion
Connectors2 pairs (In/Out) of 7.62 mm pitch screw terminal blocks (+/- poles)
Compatible cables sectionCables from 1.5 mm² to 3.3 mm² (AWG 12 to 15) copper section
Compatible cables outside diameterCable with maximum outside diameter of 11 mm
Rigging points4 x pairs of M10 rigging points (two on each side)
Material15 mm thick birch plywood body and Magnelis® grille
FinishBlack structural paint (RAL9005 or Custom RAL upon request)
Front FinishUV & Fire resistant acoustic fabric
Height x Width x Depth365mm x 423mm x 450mm (14.4" x 16.7" x 17.7")
Weight: Net14.5 kg (32 lbs)
Operating temperature range0°C - 40 °C (32° F - 104° F)
Storage temperature range-20 °C - 60 °C (-4 ° F - 140° F)
IP RatingIP55
System Operation
Recommended powering solutionNXAMP4x1mk2 Powered TDcontroller: up to 2 x eLS400 per channel
Optional powering solutionDTDcontroller + DTDAMP4x0.7 : 1 x eLS400 per channel
DTDcontroller + DTDAMP4x1.3 : 1 x eLS400 per channel
NXAMP4x2mk2 Powered TDcontroller: up to 3 x eLS400 per channel
NXAMP4x4mk2 Powered TDcontroller: up to 3 x eLS400 per channel