OUTSIDE LOUDSPEAKER BOX
for Mainline & Mass-transit Vehicles

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On Board Applications Metro & Sub Urban Rail MAIN CONTROLLER UNIT PUBLIC ADDRESS AMPLIFIER TRAIN NUMBER INDICATOR DESTINATION INDICATOR EXTERNAL SIDE DESTINATION DISPLAY SALOON DISPLAY EMERGENCY TALK BACK UNIT EMERGENCY ALARM BUTTON MAIN OPERATING PANEL AUXILIARY OPERATING PANEL OUTSIDE LOUDSPEAKER BOX DYNAMIC ROUTE MAP DISPLAY PANEL

OUTSIDE LOUDSPEAKER BOX

Outside Loudspeakers are powered by the audio amplifier unit and provide emergency audio announcement or chimes to passenger standing on the platform.

 

Technical Features

  • Each loudspeaker can be driven with 4W of power
  • Loudspeaker are driven by provided by the audio amplifier unit
  • 100V line distribution system
  • Stainless steel IP65 design

Technical Specifications

  • Drive power: 4 W
  • Sensitivity: 94dB @ 1 W/m
  • Voice coil: Dia 20mm
  • Nominal impedance: 8
  • Frequency response: 350 Hz to 5800 Hz