Communications Systems | LBC 3430/02 Bidirectional Sound Projector
LBC 3430/02 Bidirectional Sound Projector
www.boschsecurity.com
u Excellent speech and music reproduction
u Ceiling and/or wall mounting
u Robust aluminum extrusion enclosure
u Water and dust protected to IP 55
u BS 5839 8 and EN 60849 compliant
The LBC 3430/02 is a 12 W bidirectional sound projector intended for speech and music reproduction in indoor and outdoor applications. The two loudspeakers facing in opposite directions are ideally suited to applications such as subway tunnels, long corridors and shopping arcades. The sturdy, aluminum enclosure is finished in the color off-white. The sound projector is suitable for use in voice alarm systems.
Functions
Voice alarm loudspeakers are specifically designed for use in buildings where performance of systems for verbal communication announcements is governed by regulations. The LBC 3430/02 is designed for use in voice alarm systems and is compliant with British Standard BS 5839 8 and EN 60849.
The loudspeaker has built-in protection to secure that, in the event of a fire; damage to the loudspeaker does not result in failure of the circuit to which it is connected. In this way, system integrity is maintained; ensuring loudspeakers in other areas can still be used to inform people of the situation. The loudspeaker has a ceramic terminal block, thermal fuse and heat resistant, high-temperature wiring.
The sound projector is constructed from extruded aluminum and finished in offwhite. The front-grills and bracket are made from aluminum to increase corrosion resistance.
Certifications and approvals
Quality assurance
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 they can withstand two times their rated power for short durations. This ensures improved reliability under extreme conditions, leading to higher customer satisfaction, longer operating life, and lessons the chance of failure or performance deterioration.
Safety |
acc. to EN 60065 |
|
|
Emergency |
acc. to BS 5839 8 / EN 60849 |
|
|
Water and dust protection |
acc. to IEC 60529, IP 55 |
|
|
2 | LBC 3430/02 Bidirectional Sound Projector
Region Certification
Europe CE
Installation/configuration notes
Mounting
The sound projector mounts to the ceiling or to the wall in such a way, that the connection cable is not visual which is important in areas where vandalism is a potential hazard.
Power setting
A one-meter long fire-resistant six core connection cable is standard fitted to the loudspeaker. Each core is a different color, and is connected to one of the primary taps on the transformer.
146 |
186 |
|
5.75 |
7.32 |
|
166 |
6.54 |
|
175 |
100 |
|
3.94 |
||
6.89 |
||
MM |
||
|
IN
5.5 0.22
|
|
157 |
6.18 |
|
|
MM
IN
Dimensions mm / in
0 
12W
6W
3W 
1.5W
Circuit diagram
10dB |
|
|
|
|
|
|
|
|
|
90 |
|
|
|
|
|
|
|
|
|
SPL(dB) |
|
|
|
|
|
|
|
|
|
31.5 |
63 |
125 |
250 |
500 |
1k |
2k |
4k |
8k |
16k |
Frequency (Hz)
Frequency response
|
0˚ |
0˚ |
|
|
30˚ |
0 |
|
30˚ |
|
|
|
|
||
|
-10 |
|
|
|
60˚ |
|
|
60˚ |
|
|
-20 |
|
|
|
90˚ |
|
|
90˚ |
|
|
-20 |
|
|
|
120 ˚ |
|
|
120 ˚ |
|
|
-10 |
|
|
|
|
0 |
|
150 ˚ |
|
150 ˚ |
|
|
|
|
180 ˚ |
180 ˚ |
|
|
|
|
|
|
||
250 HZ |
|
|
2000 HZ |
|
500 HZ |
|
|
4000 HZ |
|
1000 HZ |
|
|
8000 HZ |
|
Polar diagram |
|
|
|
|
Octave band sensitivity * |
|
|
|
|
|
Octave SPL |
Total octave |
Total octave |
|
|
1W/1m |
|
SPL |
SPL |
|
|
|
1W/1m |
Pmax/1m |
125 Hz |
76.8 |
|
- |
- |
250 Hz |
85.0 |
|
- |
- |
500 Hz |
88.9 |
|
- |
- |
1000 Hz |
91.6 |
|
- |
- |
2000 Hz |
95.5 |
|
|
|
4000 Hz |
96.4 |
|
- |
- |
8000 Hz |
92.3 |
|
- |
- |
A-weighted |
- |
|
91.3 |
101.3 |
Lin-weighted |
- |
|
91.4 |
100.6 |
Octave band opening angles |
|
|
||
|
Horizontal |
Vertical |
|
|
125 Hz |
119 |
|
119 |
|
250 Hz |
129 |
|
129 |
|
500 Hz |
131 |
|
131 |
|
Loading...