Features :
- High efficiency drivers
- Up to 52.5w(max. power)
- Wide opening angle
- Excellent speech reproduction
- Simple power setting
- Water-and dust protected to ip65
- Versatile mounting bracket
- Voice evacuation compliant as standard
- Comply with international installation and safety regulations
BOSCH Security Systems high-efficiency horn loudspeaker provide excellent speech reproduction and sound distribution for a wide scope of outdoor applications. They are ideal for sports ground, parks, exhibitions, factories and swimming pools.
25W and 35W driver 14 inch and 20 inch bell
The 37.5W(max. power) LBC3472/00 and the 52.5W (max. power) LBC2 3473/00 are both horn loudspeaker drivers. They are direct connection to a 100V line output.The LBC3478/00 and the LBC 3479/00 are both circular bell measuring 355mm and 495mm in diameter respectively.The LBC3472/00 and LBC3473/00 are made from a combination of aluminium with ABS for optimum strength and low weight.
The edges of the bells of the LBC3478/00 and LBC3479/00 are cover with a PVC profile for protection against impact damage. All of models are finished in light grey (RAL 7035). The horns are water and dust protected.
Built-in protection
The loudspeaker has built-in protection to ensure 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, hightemperature wiring.
Simple power setting
The horn has a three-way terminal block with screw connection (including earth). Four primary taps are provided on the matching transformer to allow selection of nominal full-power, half-power or quarter-power radistion (i.e. in 3 dB)
Mounting
The horn loudspeaker are supplied complete with sturdy adjustable mounting brackets, allowing the sound beam to be accurately directed.
Technical performance data LBC3472/00 LBC3473/00
- Maximum power =37.5W/52.5W
- Rated power =25W/35W
- Sound pressure level 1W (at 1kHz,1m) =104dB/110dB
- Effective frequency range(-10 dB) =300Hz to 8kHz/200Hz to 6kHz
- Opening angle(at 1kHz/4kHz, -6 dB)
- Horizontal =80/35
- Vertical =80/35
- Rated input voltage =100V
- Rated impedance =400ohm/286ohm
- Ambient temperature range =-25 C to +55C
- Safety =according to EN 60065
- Connection =screw terminal block
Dimensions
- Aperture (L*W)
- LBC3472/00 =373*157mm
- LBC3473/00 =435*157mm
Aperture dia
- LBC3478/00 =355mm
- LBC3479/00 =495mm
- Color =Light grey RAL 7035 (all models)
Weight
- LBC3472/00 =2.9kg
- LBC3473/00 =3.5kg
- LBC3478/00 =0.7kg
- LBC3489/00 =1.0kg
