Bosch LC4-UC06E, Installation Manual

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10 en | Technical specifications Ceiling loudspeaker
2018.06 | V1.1 | Installation manual Bosch Security Systems B.V.
2 Technical specifications
Electrical *
LC4‑UC06E LC4‑UC12E
Description Ceiling loudspeaker
Rated power 6 W (6/3/1.5/0.75W) 12 W (12/6/3/1.5W)
Sound pressure level
at 6 W power / 1 W
(1 kHz, 1 m) 95 dB / 87 dB (SPL) 98 dB / 87 dB (SPL)
Sound pressure level at rated
power / 1
W (1 kHz, 4 m)
(reference axis 0 degrees, free
field)
84 dB / 75 dB (SPL) 86 dB / 75 dB (SPL)
Opening angle
at 1 kHz / 4kHz (-6
dB)
180° / 180° ** 180° / 180° **
Effective frequency range
(-10 dB) 65 Hz to 20 kHz 65 Hz to 20 kHz
Rated input voltage LC4‑UC06E 6.93 V 70 V 100 V
Rated impedance LC4‑UC06E 6 W 8 Ohm 835 Ohm 1667 Ohm
3 W N/A 1667 Ohm 3333 Ohm
1.5 W N/A 3333 Ohm 6667 Ohm
0.75 W N/A 6667 Ohm 13333 Ohm
Rated input voltage LC4‑UC12E 9.8 V 70 V 100 V
Rated impedance LC4‑UC12E 12 W 8 Ohm 418 Ohm 833 Ohm
6 W N/A 833 Ohm 1667 Ohm
3 W N/A 1667 Ohm 3333 Ohm
1.5 W N/A 3333 Ohm 6667 Ohm
Electrical connection 4‑way screw terminal block
Acceptable wire gauge 0.5 - 3 mm 2
LC4‑UC24E
Description Ceiling loudspeaker
Rated power 24 W (24/12/6/3 W)
Sound pressure level
at 6 W power / 1 W
(1 kHz, 1 m) 101 dB / 87 dB (SPL)