Communications Systems | LBC 3941/11 Sound Projector
LBC 3941/11 Sound Projector
www.boschsecurity.com
The LBC 3941/11 is a 6 W cost-effective sound
projector. It features a very wide opening angle
and unobtrusive styling. Water and dust protection
to IP 65 make it suitable for indoor and outdoor
use.
Features
u
Excellent speech and music reproduction
u
Very wide opening angle
u
Modern unobtrusive styling
u
Simple power setting
u
Splash – waterproof
2 | LBC 3941/11 Sound Projector
Technical specifications
Electrical*
Maximum power
9W
Rated power
6 / 3 / 1.5 / 0.75 W
Sound pressure level
96 dB / 88 dB (SPL)
at 6 W / 1 W (1 kHz, 1
m)
Sound pressure level
100 dB / 92 dB (SPL)
at 6 W / 1 W (2 kHz, 1
m)
Opening angle
180° / 90°
at 1 kHz / 4 kHz (-6 dB)
Effective frequency
130 Hz to 18 kHz
range (-10 dB)
Rated voltage
100 V
Rated impedance
1667 ohm
Connection
2 m 5-wire cable
* Technical performance data acc. to IEC 60268-5
Mechanical
Dimensions (D x L)
Speaker diameter
Weight
Color
Magnet weight
Environmental
165 x 200 mm
(6.50 x 7.87 in)
100 mm (4 in)
1.5 kg (3.3 lb)
White (RAL 9010)
101 g (3.57 oz)
Dimensions in mm (in)
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%
Certifications and approvals
Region
Certification
Europe
CE
Safety
acc. to EN 60065
Water and dust protecacc. to EN 60529, IP 65
tion
Self-Extinguishing
acc. to UL 94 V0
Installation/configuration notes
The sound projector is supplied with a steel mounting bracket painted in white. The
bracket has three 10 mm holes, which can be used to easily mount the projector to
walls and ceilings. The direction of the projector can be adjusted by means of two
screws covered with white plastic covers. The unit is supplied with a 2 m color-coded five-core cable, with each color connected to a different primary tap on the
matching transformer. This makes it easy to select full-power, half-power, quarterpower and eighth-power radiation without opening the unit during installation.
Frequency response
Ordering information
LBC 3941/11 Sound Projector
LBC3941/11
Represented by:
Americas:
Bosch Security Systems, Inc.
12000 Portland Avenue South
Burnsville MN 55337, USA
Phone: +1-800-392-3497
Fax: +1-800-955-6831
audiosupport@us.bosch.com
www.boschsecurity.com
Europe, Middle East, Africa:
Bosch Security Systems B.V.
P.O. Box 80002
5617 BA Eindhoven, The Netherlands
Phone: + 31 40 2577 284
Fax: +31 40 2577 330
emea.securitysystems@bosch.com
www.boschsecurity.com
© Bosch Security Systems 2013 | Data subject to change without notice
7837238283 | en, V1, 01. Oct 2013
Asia-Pacific:
Robert Bosch (SEA) Pte Ltd, Security Systems
11 Bishan Street 21
Singapore 573943
Phone: +65 6571 2808
Fax: +65 6571 2699
apr.securitysystems@bosch.com
www.boschsecurity.asia
China:
America Latina:
Bosch (Shanghai) Security Systems Ltd. Robert Bosch Ltda Security Systems Division
201 Building, No. 333 Fuquan Road
Via Anhanguera, Km 98
North IBP
CEP 13065-900
Changning District, Shanghai
Campinas, Sao Paulo, Brazil
200335 China
Phone: +55 19 2103 2860
Phone +86 21 22181111
Fax: +55 19 2103 2862
Fax: +86 21 22182398
latam.boschsecurity@bosch.com
www.boschsecurity.com.cn
www.boschsecurity.com