Bosch LB1-UM20E-D User Manual
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Polar diagram vertical
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Polar diagram vertical
Octave band sensitivity *
Octave SPL
1W/1m
Total octave
SPL
1W/1m
Total octave
SPL
Pmax/1m
125 Hz
82.5
-
-
250 Hz
82.5
-
-
500 Hz
85.4
-
-
1000 Hz
88.2
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-
2000 Hz
88.0
4000 Hz
85.5
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-
8000 Hz
86.3
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-
A-weighted
-
84.1
96.4
Lin-weighted
-
85.0
97.4
Octave band opening angles
Horizontal
Vertical
125 Hz
360
360
250 Hz
360
360
500 Hz
206
360
1000 Hz
174
127
2000 Hz
128
141
4000 Hz
136
141
8000 Hz
132
117
Acoustical performance specified per octave
* (all measurements are done with a pink noise signal;
the values are in dBSPL)
* (all measurements are done with a pink noise signal;
the values are in dBSPL)
LB1‑UM50E‑D/L
405 mm
15.94 in
160 mm
6.29 in
180 mm
7.08 in
280 mm
11.02 in
55 mm (2.
17")
7 mm
(0.82")
100 mm (3.94")
Dimensions
3 | LB1‑UMx0E Premium‑sound Cabinet Loudspeaker Range