LHS41 Loudspeaker System

Designed and qualified to meet the air-to-ground requirements and operational roles of both current and future super medium and heavy helicopters.

Drives 142 dB of SPL and intelligibly clear audio at long range.

The Loud Hailer System (LHS) is AEM’s newest in loudspeaker system technology. Building upon the successes and high performance of AEM’s existing family of loudspeaker systems, the LHS41 delivers unmatched audio quality and Sound Pressure Level (SPL) output from an impressively efficient and relatively compact mechanical package.

The LHS41 is capable of generating decibels louder than the active flight deck of an aircraft carrier, and louder than a freight train passing by when the system is broadcasting air-to-ground at a distance of 1,000 meters (1km).

Made up of the LS800-34DT (Loudspeaker), LSA800-002 (Amplifier) and LSC22-10xN (Controller), the LHS41 produces 142 dB with extremely low distortion levels and a full system weight at a lean 36.6 lb (MAX). As a result of efficient Direct Drive loudspeaker drivers, the LHS41 requires only 800W peak output power to produce AEM’s loudest and clearest system to date.  

The LHS41 is designed and qualified to fully meet the operational special roles of both super medium and heavy rotary wing aircraft.

*AEM’s LHS41 is a full system made up of the LS800-34DT, LSA800-002 and LSC22-10xN. These products are not meant to be cross-compatible with other AEM loudspeaker system products.

  • Front-mount auxiliary input allows message transmission from an MP3 player or smartphone
  • Convenient onboard digital storage for fast recording and playback
  • Field-adjustable mic input sensitivity function to boost low level mic signals and reduce feedback
  • Power-saving Direct Drive loudspeaker drivers
  • Unibody loudspeaker chassis construction
  • DO-160G and DO-214 qualified
  • Standard MIL-STD Speaker Connectors
  • Standard NVIS-compliant lighting

LHS41 Documents

TitleCategoriesDownload

LSC22 Mechanical Specs
Height1.11" [28.2 mm] MAX
Depth (behind panel with connectors)6.59” [167.4 mm] MAX
Depth (behind panel)6.34” [161.0 mm] MAX
Weight1.2 lb [0.54 kg] MAX
Width (behind panel)4.84" [122.9 mm] MAX
Width (front panel)5.74" [145.8 mm] MAX

LSA800-002 Mechanical Specs
Height5.51” [140 mm] MAX
Width3.74” [95 mm] MAX
Length9.86” [250.4 mm] MAX
Weight6.30 lb [2.9 kg] MAX
LS800-34DT Mechanical Specs
Height11.06” [281 mm] MAX
Width15.1” [383.5 mm] MAX
Length15.1” [383.5mm] MAX
Weight29 lb [13.2 kg] MAX

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