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Philips loudspeakers offer a combination of quality, performance and innovation in public address. They are the result of over half a century’s experience in professional audio, and meet virtually all sound reinforcement system requirements. Excellent price/performance ratio The LBC 3090/01 is an economic flush-mounting ceiling loudspeaker for general purpose applications. It is a full-range loudspeaker for speech and music reproduction in shops, department stores, schools, offices, sports halls, hotels and restaurants. Dual-cone loudspeaker The LBC 3090/01 has a single-piece, 6 W dual cone loudspeaker. A 100 V matching transformer is mounted behind the front panel assembly. The moulded plastic front panel is mounted onto the loudspeaker’s metal frame, and a dust cover protectsthe rear. The appearance and colour are unobtrusivein any interior. Mounting Installation is both quick and easy as the unit(s) have two built-in spring-loaded locking clamps that secure them into holes in the ceiling (for suspended ceilings and wall boards from 9 to 25 mm thick).Alternatively, they can be fixed with four screws (using pre-drilled holes) in ceiling or wall panels less than 9 mm thick. A circular template for marking a 182 mm (7.1 in) diameter hole is included with the loudspeaker. For mounting onto the surface of a wall or ceiling, the colour-matched surface mounting box LBC 3091/01 is available. Simple power setting The unit has a two-way terminal block with push connections suitable for loop-through wiring. Three primary taps are provided on the matching transformer to allow selection of nominal full- power, half-power or quarter-power radiation (i.e. in 3 dB steps). Fire dome During a fire, the ceiling cavity in which loudspeakers are installed can allow flames to spread throughout a building. To prevent fire entering the cavity via the ceiling loudspeaker, an optional steel fire dome (LBC 3080/01) can be fitted. This is mounted on the loudspeaker assembly using four self-tapping screws (supplied).The fire-dome has knock-out holes for two grommets and two cable glands (PG 13).
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SUITABLE FOR SPEECH AND
MUSIC REPRODUCTION
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