Audio Installation

IC 656/54

Acoustic Simulator

Ceiling speaker with EN 54-24 certification

WORK PRO IC ceiling loudspeakers comply with the EN 54-24 emergency safety standard (Fire alarm and fire detection system) so they can be used in evacuation systems. The IC 656/54 loudspeaker is designed and manufactured from 5VB plastic, which prevents fire from damaging it in case of an emergency. It can be easily installed using the speaker mounting spring on the ceiling panel. This loudspeaker has a transformer that allows it to be installed in high impedance lines (70 / 100V) offering a great sound quality. Its use is ideal for installation in spaces such as offices, airports, restaurants, supermarkets or schools.


  • 70/100 volt line.
  • EN 54-24 standard.
  • 5VB plastic.
  • Fireproof dome.
TypePassive. EN 54-24
L100V Power6667 Ohm( 1.5W) / 3333 Ohm (3W) / 1667 Ohm (6W)
L70V Power3333 Ohm (1.5W) / 1667 Ohm (3W) / 817 Ohm (6W)
TransducerWoofer 6.5"
Coverage500Hz: 270º, 1kHz: 180º, 2kHz: 150º. 4kHz: 55º, according to EN 54-24
Sensitivity92dB (1W, 1m) (100 Hz-10 kHz,) pink noise. According to EN 54-24
Max SPL100 dB
Mounting diameter157.1 mm
Mounting depth60 mm
Material5VB plastic.
DimensionsØ199 x 72.1 mm
Weight0.88 Kg
Master Carton0.510.500.3215.04

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