Bosch LC1-UM Metal Ceiling Loudspeaker

The LC1-UM Metal Ceiling Loudspeaker is a Bosch ceiling loudspeaker for distributed paging and background music. It belongs to Bosch's public address and voice alarm range. Bosch quotes a 70 - 20000 Hz / 55 - 20000 Hz frequency response, 89 dB sensitivity and 180 x 180 ° coverage.

It offers easy installation with one grille size and one complete set of accessories, choice of different ceiling mounting methods and optional Pilot Tone indication. It ships with installation instruction. Pick the version you need from the options on this page; each one ships as its own Bosch part number.

Frequency range (-10 dB) (Hz)	70 - 20000 Hz / 55 - 20000 Hz
Sensitivity (1 W, 1 m, 1 kHz octave) (dB)	89 dB
Coverage angle HxV (-6 dB, 1 kHz) (°)	180 x 180 °
Coverage angle HxV (-6 dB, 4 kHz) (°)	62 x 62 ° / 64 x 64 ° / 58 x 58 °
Dimensions (Ø x H) (mm)	220 x 125 mm
Weight (kg)	1.16 kg / 1.30 kg
Operating relative humidity, non-condensing (%)	0 - 95 %
Operating temperature (°C)	-25 - 55 °C