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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. Voice alarm loudspeaker
voice alarm loudspeakers are specifically designed for use in buildings
where performance of systems for verbal evacuation announcements is
governed by regulations. The LBC 3087/41 is designed for use in voice
alarm systems and is compliant with British Standard Built-in protection The loudspeaker has built-in protection to ensure that, in the event of a fire, damage to the loudspeaker does not result in failure of the circuit to which it is connected. In this way, system integrity is maintained, ensuring loudspeakers in other areas can still be used to inform people of the situation. The loudspeaker has ceramic terminal blocks, thermal fuse and heat-resistant, high-temperature wiring. It can also be fitted with an optional fire-dome to increase protection of the cable termination. Excellent price/performance ratio The LBC 3087/41 is an economic flush-mounting ceiling loudspeaker for general purpose applications. It is a fullrange loudspeaker for speech and music reproduction in shops, department stores, schools, offices, sports halls, hotels and restaurants. Dual-cone loudspeaker The LBC 3087/41 has a single-piece, 6 W dual-cone loudspeaker. A 100 V matching transformer is mounted on the back of the frame.The circular metal grille is an integrated part of the front, and is finished in an unobstrusive white colour (RAL 9010) Mounting The assembly is quickly installed into a hole in the ceiling cavity and secured with three white-coloured screws (supplied). A circular template for marking a 165 mm (6.5 in) diameter hole is included with the loudspeaker. Simple power setting The unit has a three-way terminal block with screw connections suitable for loop-through wiring. Four primary taps are provided on the matching transformer to allow selection of nominal full-power, half-power, quarter-power or eighth power radiation (i.e. in 3 dB steps). Fire dome
During a fire, the ceiling cavity can allow fire or smoke to spread
throughout a building.To inhibit fire entering the cavity via the ceiling
loudspeaker, it can be fitted with an LBC 3080/01 steel fire dome. This is
mounted on the L B C 3 0 8 7 / 4 1 loudspeaker assembly using four
self-tapping screws supplied with the fire dome. The fire-dome has
knockout Quality assurance All Philips loudspeakers are designed to withstand operating at their rated power for 100 hours in accordance with IEC 268-5 Power Handling Capacity (PHC) standards. Philips has also developed the Simulated Acoustical Feedback Exposure (SAFE) test to demonstrate that they can withstand two times their rated power for short durations. This ensures extra reliability under extreme conditions, leading to higher customer satisfaction, longer operating life, and much less chance of failure or performance deterioration. Safety aspects In common with all Philips products, care is taken to meet high safety standards. This loudspeaker complies with the relevant safety and installation regulations of EN 60065 and BS5839 part 8.
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SUITABLE FOR SPEECH AND
MUSIC REPRODUCTION
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