Bosch LB1-UM20E Series Installation and operation manual

Metal Cabinet Loudspeaker
LB1-UM20E-x, LB1-UM50E-x
en Installation note

Installation
1
2
3
4
5
6
LBC 1259/10
A
B
A
B
55 mm (2.17")
7 mm
(0.82")
100 mm (3.94")
1/8
1/8
8
1/4
1/4
1/2
1/2
1
1
100V
70V
78
5
4
3
2
6
1
2
1
LBB 4441
LBB 4442
LBB 4443
1
2
3
4
1
3
2
1
Metal Cabinet Loudspeaker Installation | en 3
Bosch Security Systems B.V. Installation note 2017.02 | V1.03 |

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
4en | Technical data Metal Cabinet Loudspeaker
2017.02 | V1.03 | Installation note Bosch Security Systems B.V.

Mechanical
Product LB1‑UM20‑(D/L) LB1‑UM50‑(D/L)
Dimensions (W x D) 274x160x180mm
10.78x6.29x7.08in
405x160x180mm
15.94x6.29x7.08in
Loudspeaker diameter
Woofer 134.5 mm (5 in) 134.5 mm (5 in)
Dome tweeter 25.4 mm (1 in) 25.4 mm (1 in)
Material
Cabinet Aluminum Aluminum
Front grille Aluminum Aluminum
Top and bottom ABS ABS
Color White (RAL 9010) (L) or
Charcoal (RAL 7021) (D)
White (RAL 9010) (L) or
Charcoal (RAL 7021) (D)
Weight 3.88 kg (8.55 lb) 5.58 kg (12.30 lb)
Environmental
Operating temperature -25 ºC to +55 ºC (-13 ºF to +131 ºF)
Storage and transport
temperature
-40 ºC to +70 ºC (-40 ºF to +158 ºF)
Relative humidity <95%
Note:
– The specification data is measured in an anechoic chamber, free field
– The reference axis is perpendicular to the center point of the front grille
– The reference plane is perpendicular to the center of the reference axis
– The horizontal plane is perpendicular to the center of the reference plane
Certification and approvals
Safety acc. to EN 60065
Water protection acc. to EN 60529, IP65
Self-extinguishing ABS acc. to UL 94 V 0
2.1
Metal Cabinet Loudspeaker Technical data | en 5
Bosch Security Systems B.V. Installation note 2017.02 | V1.03 |

Additional technical data
LB1-UM20E-x
274 mm
10.78 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
2.5W
( )
( )
5W
10W
20W
20W
10W
5W
2.5W
70.7V100V
8 ohms
8 ohms
W
T
C
0
A
B
C
D
E
F
F'
E'
D'
C'
B'
A'
60
70
80
90
100
110
10 100 1000 10000 100000
(Hz)
dB SPL
BOSCH
Circuit diagram Frequency response
-30
-25
-20
-15
-10
-5
0
5
010 20
30
40
50
60
70
80
90
100
110
120
130
140
150
160
170
180
190
200
210
220
230
240
250
260
270
280
290
300
310
320
330
340 350
125 250 500 1000
-30
-25
-20
-15
-10
-5
0
5
010 20
30
40
50
60
70
80
90
100
110
120
130
140
150
160
170
180
190
200
210
220
230
240
250
260
270
280
290
300
310
320
330
340 350
1000 2000 4000 8000
2.2
6en | Technical data Metal Cabinet Loudspeaker
2017.02 | V1.03 | Installation note Bosch Security Systems B.V.

Horizontal polar diagram (measured with
pink noise)
Horizontal polar diagram (measured with
pink noise)
-30
-25
-20
-15
-10
-5
0
5
010 20
30
40
50
60
70
80
90
100
110
120
130
140
150
160
170
180
190
200
210
220
230
240
250
260
270
280
290
300
310
320
330
340 350
125 250 500 1000
-30
-25
-20
-15
-10
-5
0
5
010 20
30
40
50
60
70
80
90
100
110
120
130
140
150
160
170
180
190
200
210
220
230
240
250
260
270
280
290
300
310
320
330
340 350
1000 2000 4000 8000
Vertical polar diagram (measured with pink
noise)
Vertical polar diagram (measured with pink
noise)
LB1-UM50E-x
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
Metal Cabinet Loudspeaker Technical data | en 7
Bosch Security Systems B.V. Installation note 2017.02 | V1.03 |

6.25W
( )
( )
12.5W
25W
50W
50W
25W
12.5W
6.25W
70.7V100V
8 ohms
8 ohms
C
0
A
B
C
D
E
F
F'
E'
D'
C'
B'
A'
W
W
T
60
70
80
90
100
110
10 100 1000 10000 100000
(Hz)
dB SPL
BOSCH
Circuit diagram Frequency response
-30
-25
-20
-15
-10
-5
0
5
010 20
30
40
50
60
70
80
90
100
110
120
130
140
150
160
170
180
190
200
210
220
230
240
250
260
270
280
290
300
310
320
330
340 350
125 250 500 1000
-30
-25
-20
-15
-10
-5
0
5
010 20
30
40
50
60
70
80
90
100
110
120
130
140
150
160
170
180
190
200
210
220
230
240
250
260
270
280
290
300
310
320
330
340 350
1000 2000 4000 8000
Horizontal polar diagram (measured with
pink noise)
Horizontal polar diagram (measured with
pink noise)
-30
-25
-20
-15
-10
-5
0
5
010 20
30
40
50
60
70
80
90
100
110
120
130
140
150
160
170
180
190
200
210
220
230
240
250
260
270
280
290
300
310
320
330
340 350
125 250 500 1000
-30
-25
-20
-15
-10
-5
0
5
010 20
30
40
50
60
70
80
90
100
110
120
130
140
150
160
170
180
190
200
210
220
230
240
250
260
270
280
290
300
310
320
330
340 350
1000 2000 4000 8000
Vertical polar diagram (measured with pink
noise)
Vertical polar diagram (measured with pink
noise)
8en | Technical data Metal Cabinet Loudspeaker
2017.02 | V1.03 | Installation note Bosch Security Systems B.V.

CE-label
Metal Cabinet Loudspeaker Technical data | en 9
Bosch Security Systems B.V. Installation note 2017.02 | V1.03 |

Bosch Security Systems B.V.
Torenallee 49
5617 BA Eindhoven
Netherlands
www.boschsecurity.com
© Bosch Security Systems B.V., 2017