Communications Systems | LB2‑UCxx‑x Premium‑sound Cabinet Loudspeaker Range
LB2‑UCxx‑x Premium‑sound Cabinet
Loudspeaker Range
High-fidelity music and speech reproduction
▶
Selectable 8 ohm, 70 V and 100 V inputs
▶
Compact yet robust ABS enclosure
▶
Supplied with adjustable mounting bracket
▶
Complies with international installation and safety
▶
regulations
The LB2‑UCxx‑x Premium‑sound cabinet loudspeakers are
intended for clear reproduction of speech, foreground and
background music to be used in general indoor and
outdoor applications. The Premium‑sound cabinet
loudspeaker range consists of a 15 W and 30 W model,
available in a light or dark color. The loudspeakers have
selectable 8 ohm, 70 V and 100 V inputs.
Typical applications are: theme bars, music restaurants,
theme parks, retail outlets, audio visual, boardrooms and
offices, exhibition areas, showrooms, fitness centre’s and
presentation environments.
Certifications and Approvals
All Bosch loudspeakers are designed to withstand
operating at their rated power for 100 hours in
accordance with IEC 268‑5 Power Handling Capacity
(PHC) standards. Bosch has also developed the Simulated
Acoustical Feedback Exposure (SAFE) test to demonstrate
that the speakers can withstand two times their rated
power for short durations. This ensures extra reliability
under extreme conditions, leading to greater customer
satisfaction, longer operating life, and much less chance
of failure or performance deterioration.
Safety acc. to EN 60065
Water protection acc. to EN 60529 IP x4
Self extinguishing acc. to UL94 V 0
Installation/Configuration Notes
The cabinets include a built‑in transformer that offers a
selection of nominal full power, half power, quarter power
or eight power radiation (i.e. in 3 dB steps) for 70 V,
100 V or 8 Ohm bypass.
Selection is done by a convenient switch on the rear
enclosure.
A two meter long twin‑core loudspeaker cable (in
matching color with the cabinet) is connected to the
loudspeaker. The core ends are stripped ready for use.
The cabinets can be mounted horizontally to allow the
loudspeaker to be directed up or down, or vertically to
allow left and right rotation by means of a steel U-shaped
wall bracket (standard supplied).
The rotatable logo can be easily adjusted to match the
mounting orientation.
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2 | LB2‑UCxx‑x Premium‑sound Cabinet Loudspeaker Range
205
(8.1)
136
(5.4)
1
1
117.8
(4.6)
208
(8.2)
165.9
(
6
.
5
)
1
Ø
Ø
Ø
80
(3.1)
80
(3.1)
225.4
(8.9)
10
(0.4)
12.
5
(0.5)
10
0.4
)
(
1.9W
2.2uf
3.75W
7.5W
15W
15W
7.5W
3.75W
1.9W
70.7V100V
8 ohms
C
0
A
B
C
D
E
F
F'
E'
D'
C'
B'
A'
Rear view LB2-UC15-30-D/L
LB2‑UC15‑D/L
1 Rotatable logo
Mechanical diagram: front and top view in mm (in.)
1 Power tapping switch
Mechanical diagram: side view in mm (in.)
Mechanical diagram: rear view in mm (in.)
Circuit diagram
60
70
80
90
100
110
10 100 1000 10000 100000
Frequency (Hz )
dB S PL
BOSCH
Frequency response
-3
0
-25
-20
-15
-10
-5
0
5
0
10
20
30
40
50
60
70
80
90
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130
140
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170
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310
320
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340
350
125 250 500 1000
-
3
0
-25
-20
-15
-10
-5
0
5
0
10
20
30
40
50
60
70
80
90
100
110
120
130
140
150
160
170
180
190
200
210
220
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240
250
260
270
280
290
300
310
320
330
340
350
1000 2000 4000 8000
-3
0
-25
-20
-1
5
-1
0
-5
0
5
0
10
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
-3
0
-25
-20
-15
-10
-5
0
5
0
10
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
LB2‑UCxx‑x Premium‑sound Cabinet Loudspeaker Range | 3
Polar diagram vertical
Polar diagram horizontal
Polar diagram horizontal
Polar diagram vertical
Octave band sensitivity *
Octave SPL
1W/1m
Total octave SPL
1W/1m
Total octave SPL
Pmax/1m
125 Hz 80.6 - -
250 Hz 80.4 - -
500 Hz 82.7 - -
1000 Hz 85.9 - -
2000 Hz 87.8
4000 Hz 88.9 - -
8000 Hz 88.8 - -
A-weighted - 84.7 95.9
Lin-weighted - 85.0 95.6
Octave band opening angles
Horizontal Vertical
125 Hz 360 > 180
250 Hz 360 > 180
500 Hz 360 > 180
1000 Hz 179 168
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4 | LB2‑UCxx‑x Premium‑sound Cabinet Loudspeaker Range
245
(9.6)
16
0
(
6
.
3)
1
169.3
(6.7)
247
(9.7)
1
30.
8
(5
.
1
)
1
18
(0.7
)
78
(3.1)
78
(3.1)
262.4
(10.3)
10
(0.4)
10
(0.4
)
Ø
Ø
Ø
C'
D'
E'
F'
E
D
C
B
A
0
C
100V 70.7V
2.2uf
F
8 ohms
A'
B'
30W
15W
7.5W
3.75W
3.75W
7.5W
15W
30W
60
70
80
90
100
110
10 100 1000 10000 100000
Frequency (Hz )
dB S PL
BOSCH
2000 Hz 115 121
4000 Hz 101 35
8000 Hz 76 44
Acoustical performance specified per octave
* (all measurements are done with a pink noise signal; the
values are in dB SPL)
LB2‑UC30‑D/L
Mechanical diagram: rear view in mm (in.)
1 Rotatable logo
Mechanical diagram: front and top view in mm (in.)
1 Power tapping switch
Mechanical diagram: side view in mm (in.)
Circuit diagram
Frequency response
LB2‑UCxx‑x Premium‑sound Cabinet Loudspeaker Range | 5
-30
-25
-20
-15
-10
-5
0
5
0
10
20
30
40
50
60
70
80
90
100
110
120
130
140
150
160
170
180
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220
230
240
250
260
270
280
290
300
310
320
330
340
350
125 250 500 1000
-30
-25
-20
-
15
-1
0
-5
0
5
0
10
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
-30
-25
-20
-1
5
-10
-5
0
5
0
10
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
-1
5
-10
-5
0
5
0
10
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
Polar diagram horizontal
Polar diagram horizontal
Polar diagram vertical
Octave band sensitivity *
Octave SPL
1W/1m
Total octave SPL
1W/1m
Total octave SPL
Pmax/1m
125 Hz 83.2 - -
250 Hz 82.6 - -
500 Hz 85.1 - -
1000 Hz 89.5 - -
2000 Hz 89.8
4000 Hz 92.8 - -
8000 Hz 88.6 - -
A-weighted - 87.5 100.9
Lin-weighted - 87.6 100.5
Octave band opening angles
Horizontal Vertical
125 Hz 360 > 180
250 Hz 360 > 180
500 Hz 360 > 180
1000 Hz 160 150
2000 Hz 97 116
4000 Hz 81 90
8000 Hz 93 52
Polar diagram vertical
Acoustical performance specified per octave
* (all measurements are done with a pink noise signal; the
values are in dB SPL)
Parts Included
Quantity Components
1 LB2‑UCxx‑x
1 Mounting bracket
1 Installation instruction
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6 | LB2‑UCxx‑x Premium‑sound Cabinet Loudspeaker Range
Technical Specifications
Electrical*
Product LB2‑UC15‑(D/L) LB2‑UC30‑(D/L)
Description Premium‑sound Cabi-
net Loudspeaker
Premium‑sound Cabinet Loudspeaker
Maximum power 22.5 W 45 W
Rated power (PHC) 15 W 30 W
Power tapping 15 / 7.5 / 3.75 / 1.9 W 30 / 15 / 7.5 / 3.75 W
Sound pressure level
98/86 dB (SPL) 105/90 dB (SPL)
at rated power / 1 W
(1 kHz, 1 m)
Effective frequency
95 Hz to 19.5 kHz 100 Hz to 18.5 kHz
range (-10 dB)
Opening angle
at 1 kHz / 4 kHz (-6 dB)
179° / 101° (hor.)
168° / 35° (ver.)
160° / 81° (hor.)
150° / 90° (ver.)
Rated input voltage 11/70/100 V 15.5/70/100 V
Rated impedance 8 / 326 / 667 ohm 8 / 163 / 333 ohm
Transducers 101.6 mm (4”) woof-
er, 13 mm (0.51 “)
dome tweeter
Connection 2 m (78.8 in.) two‑wire
cable
127 mm (5”) woofer,
13 mm (0.51 “) dome
tweeter
2 m (78.8 in.) two‑wire
cable
* Technical performance data acc. to IEC 60268‑5
Ordering Information
LB2‑UC15‑D Premium‑sound Cabinet
Loudspeaker
15 W, ABS charcoal
LB2‑UC15‑L Premium‑sound Cabinet
Loudspeaker
15 W, ABS white
LB2‑UC30‑D Premium‑sound Cabinet
Loudspeaker
30 W, ABS charcoal
LB2‑UC30‑L Premium‑sound Cabinet
Loudspeaker
30 W, ABS white
LB2-UC15-D
LB2-UC15-L
LB2-UC30-D
LB2-UC30-L
Mechanical
Dimensions (H x W x D) 205 x 136 x 117 mm
(8.07 x 5.35 x 4.60 in)
Weight Approx. 1.9 kg
(4.18 lb)
Color White (RAL 9010) (L)
or
Charcoal (RAL 7021)
(D)
250 x 160 x 140 mm
(9.84 x 6.30 x 5.51 in)
Approx. 2.4 kg
(5.29 lb)
White (RAL 9010) (L)
or
Charcoal (RAL 7021)
(D)
Environmental
Operating temperature -25 ºC to +55 ºC (-13 ºF to +131 ºF)
Storage temperature -40 ºC to +70 ºC (-40 ºF to +158 ºF)
Relative humidity <95%
Americas:
Bosch Communications Systems
12000 Portland Avenue South
Burnsville, Minnesota 55337, USA
Phone: +1-800-392-3497
Fax: +1-800-955-6831
audiosupport@us.bosch.com
www.boschsecurity.com
© Bosch Security Systems Inc. 011 | Data subject to change without notice
T4994409227 | Cur: en-US, V11, 27 Jan 2011
Europe, Middle East, Africa:
Bosch Security Systems B.V.
P.O. Box 80002
5600 JB Eindhoven, The Netherlands
Phone: + 31 40 2577 284
Fax: +31 40 2577 330
emea.securitysystems@bosch.com
www.boschsecurity.com
Asia-Pacific:
Robert Bosch (SEA) Pte Ltd
11 Bishan Street 21
Singapore 573943
Phone: +65 6571 2600
Fax: +65 6571 2698
apr.securitysystems@bosch.com
www.boschsecurity.com
Represented by
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