Various speaker options to suit the aircraft and mission.

AEM's 250-watt Public Address and Siren System is designed for special-mission aircraft that require a rugged and reliable public address system with voice and siren functionality.

The 250W legacy system has been the standard for light turbine helicopters such as the AW109, B407, AS350, and MD500/600 series. 


  • Front-mount auxiliary input allows message transmission from an MP3 player or smartphone
  • Convenient onboard digital storage for fast recording and playback
  • Solid-state amplifier contained in a durable, black anodized, aluminum chassis
  • Protective circuitry guards the amplifier
  • Various speaker options to suit the aircraft and mission 
TS92-02 Bell Array Loudspeaker
LSC22 Loudspeaker Controller
PA250 with VR33-001 Cropped.png
PA250 Amplifier with VR33 Power Conversion Device
PA250 with VR33-001 Cropped.png
Controller Mechanical Specs
Height 1.11"
Width 5.74"
Length 6.32"
Weight 1.30 lb
Amplifier Mechanical Specs
Height 4.26"
Width 8.75"
Length 10.00" incl. connectors
Weight 6.75 lb
Speaker Specs
Please refer to the TS9x Series Installation & Operation Manual

Installation & Operation Manuals


Product Brochure


Product Details Request Form 

If you have a capability requirement that isn’t met by an existing system, AEM is open to new opportunities that meet the demands of both fixed- and rotary-wing aircraft. We work with flight crew, integrators, and OEMs to deliver solutions for today’s avionics market.

Tell us what you need.


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