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Communications Systems | LBC 3950/01 Ceiling Loudspeaker



LBC 3950/01 Ceiling Loudspeaker
www.boschsecurity.com




                                                           u   Compact yet powerful

                                                           u   Very wide opening angle

                                                           u   Modern unobtrusive styling

                                                           u   Installation friendly

                                                           u   Splash-waterproof




 The LBC 3950/01 is a compact, 6 W loudspeaker with        Certifications and Approvals
 a circular plastic grille. It has excellent audio
 performance and is easy to install with its integral      All Bosch loudspeakers are designed to withstand
 mounting clips. The loudspeaker is IPx4 water             operating at their rated power for 100 hours in
 protected from the front so it can be installed in        accordance with IEC 268-5 Power Handling Capacity
 humid environments.                                       (PHC) standards. Bosch has also developed the
                                                           Simulated Acoustical Feedback Exposure (SAFE) test
 Functions                                                 to demonstrate that they can withstand two times
                                                           their rated power for short durations. This ensures
 The LBC 3950/01 has a circular pattern plastic grille     extra reliability under extreme conditions, leading to
 with a plastic surround, finished in an attractive off-   higher customer satisfaction, longer operating life, and
 white RAL color. The unobtrusive styling of this          much less chance of failure or performance
 loudspeaker complements modern interior lighting.         deterioration.
 The loudspeaker feature a very wide opening angle,        All plastic parts are manufactured from self-
 which means fewer units are required to cover a given     extinguishing high-impact ABS material (according to
 area. The wide frequency range means better speech        UL 94V0).
 and music reproduction. The unit is supplied with a
 100 V matching transformer with taps on the primary       Safety                    acc. to EN 60065
 winding for full-power, half-power, quarter-power and
 eighth-power radiation.                                   Water protected           acc. to EN 60529, IPx4
 The loudspeaker (with special treated paper cone), is
 IP 4 water protected from the front and can be applied    Region            Certification
 in humidity environments for example bathrooms,           Europe            CE        Declaration of Conformity
 saunas, atriums and swimming pool areas.
2 | LBC 3950/01 Ceiling Loudspeaker



Installation/Configuration Notes

Installation is easy with integral clips that securely
hold the ceiling loudspeaker in its cut-out. Ceilings
from 9 to 25 mm thick can be accommodated. A
template is also provided for accurately marking the
cutout in ceiling panels. Wiring is via a connection
block with push-type terminals, making installation
possible without using any special tools. The terminal
blocks have provision for loop-through wiring. The
transformer is delivered wired for 6 W rated output
                                                         Frequency response
power, but can easily be changed for other
connections using the color-coded wires and terminal
block.




0   Clamp
1
0   Matching transformer                                 Polar diagram
2
                                                                       125      250   500      1        2     4     8
0   Terminal block
                                                                       Hz       Hz    Hz       kHz      kHz   kHz   kH
3
                                                                                                                    z
Dimensions in mm (in)
                                                         SPL 1.1       87       88    86       88       89    91    89

                                                         SPL max.      95       96    94       96       97    99    97

                                                         Q-factor      4        5.6   2.6      3        3.8   8.1   15

                                                         Efficienc     0.1      0.1   0.19     0.2      0.2   0.1   0.
                                                         y             6        4              7        6     9     06

                                                         H. angle      180      180   180      170      165   90    55

                                                         V. angle      180      180   180      170      165   90    55
                                                         Acoustical performance specified per octave

Circuit diagram                                          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)
3 | LBC 3950/01 Ceiling Loudspeaker



 Sound pressure level                      99 dB / 91 dB (SPL)
 at 6 W / 1 W (4 kHz, 1 m)

 Effective frequency range                 60 Hz to 18 kHz
 (-10 dB)

 Opening angle                             170° / 90°
 at 1 kHz/4 kHz (-6 dB)

 Rated voltage                             100 V

 Rated impedance                           1667 ohm

 Connector                                 2-pole push-in terminal block
 * Technical performance data acc. to IEC 60268-5
 Mechanical

 Diameter                                  160 mm (6.30 in)

 Maximum depth                             95 mm (3.74 in)

 Ceiling thickness                         9 to 25 mm (0.35 to 0.98 in)

 Mounting cut-out                          145 mm (5.71 in)

 Speaker diameter                          101.6 mm (4 in)

 Weight                                    690 g (1.52 lb)

 Color                                     Off-white (RAL 9010)

 Magnet weight                             101 g (3.57 oz)

 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%

 Ordering Information

 LBC 3950/01 Ceiling Loudspeaker
 6 W, with a circular plastic grille.
 Order number LBC3950/01
 Accessories
 LBC 1256/00 EVAC Connection Adapter
 3-pole screw connector, 100 pieces
 Order number LBC1256/00




Represented by:

Americas:                               Europe, Middle East, Africa:         Asia-Pacific:
Bosch Communications Systems            Bosch Security Systems B.V.          Robert Bosch (SEA) Pte Ltd
12000 Portland Avenue South             P.O. Box 80002                       11 Bishan Street 21
Burnsville, Minnesota 55337, USA        5600 JB Eindhoven, The Netherlands   Singapore 573943
Phone: +1-800-392-3497                  Phone: + 31 40 2577 284              Phone: +65 6571 2600
Fax: +1-800-955-6831                    Fax: +31 40 2577 330                 Fax: +65 6571 2698
audiosupport@us.bosch.com               emea.securitysystems@bosch.com       apr.securitysystems@bosch.com
www.boschsecurity.com                   www.boschsecurity.com                www.boschsecurity.com

© Bosch Security Systems 2012 | Data subject to change without notice
1919368459 | en, V1, 16. Apr 2012
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Data sheet en_us_1919592971

  • 1. Communications Systems | LBC 3950/01 Ceiling Loudspeaker LBC 3950/01 Ceiling Loudspeaker www.boschsecurity.com u Compact yet powerful u Very wide opening angle u Modern unobtrusive styling u Installation friendly u Splash-waterproof The LBC 3950/01 is a compact, 6 W loudspeaker with Certifications and Approvals a circular plastic grille. It has excellent audio performance and is easy to install with its integral All Bosch loudspeakers are designed to withstand mounting clips. The loudspeaker is IPx4 water operating at their rated power for 100 hours in protected from the front so it can be installed in accordance with IEC 268-5 Power Handling Capacity humid environments. (PHC) standards. Bosch has also developed the Simulated Acoustical Feedback Exposure (SAFE) test Functions to demonstrate that they can withstand two times their rated power for short durations. This ensures The LBC 3950/01 has a circular pattern plastic grille extra reliability under extreme conditions, leading to with a plastic surround, finished in an attractive off- higher customer satisfaction, longer operating life, and white RAL color. The unobtrusive styling of this much less chance of failure or performance loudspeaker complements modern interior lighting. deterioration. The loudspeaker feature a very wide opening angle, All plastic parts are manufactured from self- which means fewer units are required to cover a given extinguishing high-impact ABS material (according to area. The wide frequency range means better speech UL 94V0). and music reproduction. The unit is supplied with a 100 V matching transformer with taps on the primary Safety acc. to EN 60065 winding for full-power, half-power, quarter-power and eighth-power radiation. Water protected acc. to EN 60529, IPx4 The loudspeaker (with special treated paper cone), is IP 4 water protected from the front and can be applied Region Certification in humidity environments for example bathrooms, Europe CE Declaration of Conformity saunas, atriums and swimming pool areas.
  • 2. 2 | LBC 3950/01 Ceiling Loudspeaker Installation/Configuration Notes Installation is easy with integral clips that securely hold the ceiling loudspeaker in its cut-out. Ceilings from 9 to 25 mm thick can be accommodated. A template is also provided for accurately marking the cutout in ceiling panels. Wiring is via a connection block with push-type terminals, making installation possible without using any special tools. The terminal blocks have provision for loop-through wiring. The transformer is delivered wired for 6 W rated output Frequency response power, but can easily be changed for other connections using the color-coded wires and terminal block. 0 Clamp 1 0 Matching transformer Polar diagram 2 125 250 500 1 2 4 8 0 Terminal block Hz Hz Hz kHz kHz kHz kH 3 z Dimensions in mm (in) SPL 1.1 87 88 86 88 89 91 89 SPL max. 95 96 94 96 97 99 97 Q-factor 4 5.6 2.6 3 3.8 8.1 15 Efficienc 0.1 0.1 0.19 0.2 0.2 0.1 0. y 6 4 7 6 9 06 H. angle 180 180 180 170 165 90 55 V. angle 180 180 180 170 165 90 55 Acoustical performance specified per octave Circuit diagram 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)
  • 3. 3 | LBC 3950/01 Ceiling Loudspeaker Sound pressure level 99 dB / 91 dB (SPL) at 6 W / 1 W (4 kHz, 1 m) Effective frequency range 60 Hz to 18 kHz (-10 dB) Opening angle 170° / 90° at 1 kHz/4 kHz (-6 dB) Rated voltage 100 V Rated impedance 1667 ohm Connector 2-pole push-in terminal block * Technical performance data acc. to IEC 60268-5 Mechanical Diameter 160 mm (6.30 in) Maximum depth 95 mm (3.74 in) Ceiling thickness 9 to 25 mm (0.35 to 0.98 in) Mounting cut-out 145 mm (5.71 in) Speaker diameter 101.6 mm (4 in) Weight 690 g (1.52 lb) Color Off-white (RAL 9010) Magnet weight 101 g (3.57 oz) 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% Ordering Information LBC 3950/01 Ceiling Loudspeaker 6 W, with a circular plastic grille. Order number LBC3950/01 Accessories LBC 1256/00 EVAC Connection Adapter 3-pole screw connector, 100 pieces Order number LBC1256/00 Represented by: Americas: Europe, Middle East, Africa: Asia-Pacific: Bosch Communications Systems Bosch Security Systems B.V. Robert Bosch (SEA) Pte Ltd 12000 Portland Avenue South P.O. Box 80002 11 Bishan Street 21 Burnsville, Minnesota 55337, USA 5600 JB Eindhoven, The Netherlands Singapore 573943 Phone: +1-800-392-3497 Phone: + 31 40 2577 284 Phone: +65 6571 2600 Fax: +1-800-955-6831 Fax: +31 40 2577 330 Fax: +65 6571 2698 audiosupport@us.bosch.com emea.securitysystems@bosch.com apr.securitysystems@bosch.com www.boschsecurity.com www.boschsecurity.com www.boschsecurity.com © Bosch Security Systems 2012 | Data subject to change without notice 1919368459 | en, V1, 16. Apr 2012