Technical data
Electrical*
Product
LB1‑UM20E‑(D/L)
LB1‑UM50E‑(D/L)
Description
Premium‑sound Cabinet
Loudspeaker
Premium‑sound Cabinet
Loudspeaker
Maximum power
30 W
75 W
Rated power (PHC)
20 W
50 W
Power tapping
20 / 10 / 5 / 2.5 W
50 / 25 / 12.5 / 6.25 W
Sound pressure level
at rated power /
1 W (1 kHz, 1 m)
101 dB / 88 dB (SPL)
108 dB / 91 dB (SPL)
Sound pressure level
at rated power /
1 W (1 kHz, 4 m)
87 dB / 74 dB (SPL)
94 dB / 79 dB (SPL)
Effective frequency range
(-10 dB)
90 Hz to 20 kHz
90 Hz to 20 kHz
Opening angle
at 1 kHz / 4 kHz (-6 dB)
horizontal
174° / 136°
186° / 126°
vertical
127° / 141°
84° / 62°
Product
LB1‑UM20E‑(D/L)
Rated input
voltage
Rated impedance
12.65 V
70 V
100 V
20 W
8 Ohm
250 Ohm
500 Ohm
10 W
N.A.
500 Ohm
1000 Ohm
5 W
N.A.
1000 Ohm
2000 Ohm
2.5 W
N.A.
2000 Ohm
4000 Ohm
Product
LB1‑UM50E‑(D/L)
Rated input
voltage
Rated impedance
20 V
70 V
100 V
50 W
8 Ohm
100 Ohm
200 Ohm
25 W
N.A.
200 Ohm
400 Ohm
12.5 W
N.A.
400 Ohm
800 Ohm
6.25 W
N.A.
800 Ohm
1600 Ohm
Connector
3‑pole screw block
* Technical performance data acc. to IEC 60268‑5
2
4
en | Technical data
Metal Cabinet Loudspeaker
2017.02 | V1.03 |
Installation note
Bosch Security Systems B.V.
