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en | Technical data
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Technical data
Electrical*
Product
Description
Maximum power
Rated power (PHC)
Power tapping
Sound pressure level
at rated power /
1 W (1 kHz, 1 m)
Sound pressure level
at rated power /
1 W (1 kHz, 4 m)
Effective frequency range
(-10 dB)
Opening angle
at 1 kHz / 4 kHz (-6 dB)
Product
Rated input
voltage
Rated impedance
Product
Rated input
voltage
Rated impedance
Connector
* Technical performance data acc. to IEC 60268‑5
2017.02 | V1.03 |
horizontal
vertical
LB1‑UM20E‑(D/L)
20 W
10 W
5 W
2.5 W
LB1‑UM50E‑(D/L)
50 W
25 W
12.5 W
6.25 W
LB1‑UM20E‑(D/L)
Premium‑sound Cabinet
Loudspeaker
30 W
20 W
20 / 10 / 5 / 2.5 W
101 dB / 88 dB (SPL)
87 dB / 74 dB (SPL)
90 Hz to 20 kHz
174° / 136°
127° / 141°
12.65 V
8 Ohm
N.A.
N.A.
N.A.
20 V
8 Ohm
N.A.
N.A.
N.A.
Installation note
Metal Cabinet Loudspeaker
LB1‑UM50E‑(D/L)
Premium‑sound Cabinet
Loudspeaker
75 W
50 W
50 / 25 / 12.5 / 6.25 W
108 dB / 91 dB (SPL)
94 dB / 79 dB (SPL)
90 Hz to 20 kHz
186° / 126°
84° / 62°
70 V
100 V
250 Ohm
500 Ohm
500 Ohm
1000 Ohm
1000 Ohm
2000 Ohm
2000 Ohm
4000 Ohm
70 V
100 V
100 Ohm
200 Ohm
200 Ohm
400 Ohm
400 Ohm
800 Ohm
800 Ohm
1600 Ohm
3‑pole screw block
Bosch Security Systems B.V.
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