Bosch Premium Sound Loudspeaker

The LC2-PC30G6-4 is a 4-inch two-way Premium-sound Ceiling Loudspeaker which provides; wide dispersion, high efficiency, high maximum output, ease-of-installation, and wide-range reproduction of music and voice. It consists of a baffle assembly, grille, back-can enclosure, 4-inch coax two-way loudspeaker and internal output-power matching transformer. The loudspeaker features a waveguide coupled titanium coated dome tweeter. The rear enclosure provides an optimum internal volume for extended low frequency performance. The loudspeaker utilizes a second order crossover network at 3.3 kHz, with a comprehensive protection circuit to protect the network, woofer, and tweeter drivers from excessive power levels. The loudspeaker can be installed optionally with the LC2-PC60G6-10 ceiling subwoofer to enhance the low frequency reproduction down to 45 Hz Functions: 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 LC2-PC30G6-4 is designed for use in voice alarm systems and is compliant with British Standard BS 5839-8 and EN 60849. 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. It is standard fitted with a back-can enclosure to increase protection of the cable termination. The loudspeaker has an emergency compliant ceramic screw-terminal block and thermal fuse. Maximum power :50 W?Rated power 30 / 15 / 7.5 / 3.75 W (1.88 W only, 70 V). Sound pressure level at 30 W / 1 W (1 kHz, 1 m) 101 / 86 dB (SPL) Effective frequency range (-10 dB) 65 Hz to 20 kHz Coverage (conical) 130? Rated voltage 70 V or 100 V Rated impedance 167 or 333 or 8 ohm LF transducer 100 mm (4 in.) Polypropylene cone HF transducer 19 mm (0.75 in.) Ti Mylar laminate Connector 3-pole screw terminal block Mechanical Diameter 210 mm (8.3 in) Maximum depth 176 mm (6.9 in) Ceiling thickness 4 to 25 mm (0.16 to 1.00 in.) Mounting cut-out 183 5 mm (7.188 0.20 in.) Baffle ABS (UL94V0) Back-can Zinc-plated steel Grille Powder coated steel Weight 2.7 kg (6.0 lb) Color White (RAL 9010) Environmental Operating temperature -25 ?C to ?C (-13 ?F to ? ?F) Storage temperature -40 ?C to ?C (-40 ?F to ? ?F) Relative humidity <95%