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Speakers

LSC-506 5-inch EN54-24 Ceiling Loudspeaker

Loudspeaker type
5" Round Ceiling Loud Speaker
Rated power
6W
Power tap at 100v
6W/3W/1.5W/0.75W
Power tap at 70v
3W/1.5W/0.75W/0.375W
Rated input voltage
100V/70V
Rated impedance
1.7KΩ/3.3KΩ/6.7KΩ/13KΩ
Driver impedance

Overview

What it is and how it fits the system.

The LSC-506 is an EN54-24 approved round 5-inch flush-mounted ceiling loudspeaker with capacitors, designed for voice alarm and fire detection systems. Rated at 6W on a 100V/70V line, it offers selectable power taps (6W/3W/1.5W/0.75W at 100V) and delivers 91 dB at 1W/1m and 88 dB at 6W/4m measured to EN54-24. Its 8-ohm driver and tapped impedances from 1.7K to 13K ohms suit flexible distributed voice-alarm layouts.

Technical overview

The LSC-506 is an EN54-24 approved round 5-inch flush-mounted ceiling loudspeaker with capacitors, designed for voice alarm and fire detection systems and offering full compliance with BS5839 Part 8. Selectable power taps on its 100V/70V line let installers set the output to suit distributed voice-alarm layouts, while the tapped impedances give flexibility across large, zoned systems.

Built-in protection means that damage to an individual loudspeaker does not result in a failure of the wider loudspeaker circuit; ceramic terminal blocks and a thermal fuse provide this integral safeguarding. The flush-mounted design, finished with a metal fire dome, makes the unit well suited to suspended ceilings. It is fitted using the mounting spring on the body, with the fire dome sliding into place over a flying-lead wiring arrangement.

Physical wiring and connection details, including the ceramic terminal blocks and flying leads, are covered in the installation manual rather than here; this datasheet is not intended for installation purposes. For physical connections, refer to the installation manual.

Specifications

Full technical data for this part.

Loudspeaker type5" Round Ceiling Loud Speaker
Rated power6W
Power tap at 100v6W/3W/1.5W/0.75W
Power tap at 70v3W/1.5W/0.75W/0.375W
Rated input voltage100V/70V
Rated impedance1.7KΩ/3.3KΩ/6.7KΩ/13KΩ
Driver impedance
Sound pressure level 1w 1m91 dB (1W/1m 100Hz-10kHz pink noise as per EN54-24)
Sound pressure level 1w 4m79 dB (1W/4m, 100Hz-10kHz pink noise as per EN54-24)
Sound pressure level 6w 4m88 dB (6W/4m, 100Hz-10kHz pink noise as per EN54-24)
Frequency response180Hz-20 k Hz
ConnectionCeramic Terminal
Speaker diameter127mm (5")
Hole cut out size155mm

Specifications sourced from manufacturer documentation.

Specifications per manufacturer documentation, subject to change — E&OE. Spotted an inaccuracy? Let us know

Datasheets & documents

Reference downloads.