1. 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 Safety acc. to EN 60065
intended for clear reproduction of speech, foreground and Water protection acc. to EN 60529 IP x4
background music to be used in general indoor and
Self extinguishing acc. to UL94 V 0
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. Installation/Configuration Notes
Typical applications are: theme bars, music restaurants, The cabinets include a built‑in transformer that offers a
theme parks, retail outlets, audio visual, boardrooms and selection of nominal full power, half power, quarter power
offices, exhibition areas, showrooms, fitness centre’s and or eight power radiation (i.e. in 3 dB steps) for 70 V,
presentation environments. 100 V or 8 Ohm bypass.
Selection is done by a convenient switch on the rear
enclosure.
Certifications and Approvals A two meter long twin‑core loudspeaker cable (in
All Bosch loudspeakers are designed to withstand matching color with the cabinet) is connected to the
operating at their rated power for 100 hours in loudspeaker. The core ends are stripped ready for use.
accordance with IEC 268‑5 Power Handling Capacity The cabinets can be mounted horizontally to allow the
(PHC) standards. Bosch has also developed the Simulated loudspeaker to be directed up or down, or vertically to
Acoustical Feedback Exposure (SAFE) test to demonstrate allow left and right rotation by means of a steel U-shaped
that the speakers can withstand two times their rated wall bracket (standard supplied).
power for short durations. This ensures extra reliability The rotatable logo can be easily adjusted to match the
under extreme conditions, leading to greater customer mounting orientation.
satisfaction, longer operating life, and much less chance
of failure or performance deterioration.
www.boschsecurity.com
2. 2 | LB2‑UCxx‑x Premium‑sound Cabinet Loudspeaker Range
165.9
(6.5)
1
208
(8.2)
117.8
(4.6)
Rear view LB2-UC15-30-D/L
1 Power tapping switch
LB2‑UC15‑D/L
Mechanical diagram: side view in mm (in.)
10
Ø (0.4)
205
(8.1)
80
1 (3.1)
12.5
Ø (0.5)
225.4
(8.9)
136
(5.4)
80
(3.1)
1
10
Ø (0.4)
Mechanical diagram: rear view in mm (in.)
F 8 ohms
1 Rotatable logo E 1.9W
D 3.75W 1.9W
Mechanical diagram: front and top view in mm (in.) C 7.5W 3.75W
2.2uf
B 15W 7.5W
A 15W
100V 70.7V
0
F' C
E'
D'
C'
B'
A'
Circuit diagram
4. 4 | LB2‑UCxx‑x Premium‑sound Cabinet Loudspeaker Range
2000 Hz 115 121 10
Ø(0.4)
4000 Hz 101 35
8000 Hz 76 44
Acoustical performance specified per octave
* (all measurements are done with a pink noise signal; the 78
(3.1)
values are in dB SPL)
LB2‑UC30‑D/L 262.4
(10.3)
18 78
Ø(0.7) (3.1)
245
(9.6)
1 10
Ø (0.4)
Mechanical diagram: rear view in mm (in.)
160
(6.3) F 8 ohms
E 3.75W
D 7.5W 3.75W 2.2uf
C 15W 7.5W
B 30W 15W
A 30W
100V 70.7V
0
F' C
E'
D'
C'
B'
1 Rotatable logo A'
Mechanical diagram: front and top view in mm (in.)
Circuit diagram
169.3
(6.7) 110
dB SPL
BOSCH
100
90
80
70
60
10 100 1000 10000 100000
1
Frequency (Hz)
Frequency response
247
(9.7)
130.8
(5.1)
1 Power tapping switch
Mechanical diagram: side view in mm (in.)
