Bosch LBC 3700 / 00 f.01u.506.051 lbc3700 / 00 horn speaker



▶ High quality music horn speaker for excellent voice definition and music reproduction

▶ Two frequency division system

▶ high sensitivity

▶ Wide open angle

▶ Simple and convenient power setting

▶ The waterproof and dustproof grade meets IP 65 standard

▶ Elegant and fashionable ABS shell

▶ Comply with international installation and safety regulations

Bosch LBC 3700 / 00 horn speaker has a wider frequency range and higher sensitivity, which can provide excellent speech definition and high quality music reproduction performance. The speaker has an ultra wide open angle to ensure even sound transmission, so only a few horns can cover the designated area.

basic function

The rectangular horn speaker is a unique combination of a cavity horn and two transducers (one for low frequency and the other for high frequency) to produce unparalleled speech clarity. This horn speaker is waterproof, so it can be used in highly humid places. Therefore, it is not only suitable for outdoor places such as swimming pool, sports ground, leisure park, cruise, school and railway station, but also suitable for indoor public address system. Light gray ral 7035 coating, ABS horn speaker design fashion, lightweight.

Certificate and recognition

All Bosch loudspeakers comply with IEC 268-5 power handling capacity (PHC) standard and can operate continuously for 100 hours at rated power. In addition, Bosch has conducted simulated acoustic feedback exposure (SAFE) tests to ensure that they can withstand twice the rated power in a short period of time. This ensures high reliability of loudspeakers in extreme conditions, improves customer satisfaction, extends service life, and significantly reduces the probability of failure or performance degradation.

Regional certification

European CE declaration of conformity

Safety in accordance with en 60065

Waterproof and dustproof meet IEC 60529, IP 65 standards

Flame retardant ABS meets UL 94 V0 standard

Installation / configuration

The 100 V horn speaker has a built-in transformer and jumpers on the primary winding can be used for different power settings. By connecting the 100 V line to the corresponding jumper, it is easy to select rated full power, 1 / 2 power, 1 / 4 power or 1 / 8 power (increase by 3 dB). Horn loudspeakers are equipped with solid aluminum (corrosion resistant) mounting brackets to allow sound beams to travel in the correct direction.

technical specifications

Electrical indicators*

Maximum power 45 w

Rated power 30 / 15 / 7.5 / 3.75 w

Sound pressure level

At 30 W / 1 W (2 kHz, 1 m)

113 dB / 98 dB (sound pressure level)

Effective frequency range (- 10 dB) 125 Hz to 20 kHz

Open angle 1 kHz / 4 kHz (- 6 dB)

Horizontal 105 ° / 90 °

110 ° / 125 ° vertically

Rated voltage 100 V

Rated impedance 333 ohm

Connector screw terminal box

*The technical performance data conform to IEC 60268-5 standard

Mechanical index

Dimensions (H x W x D) 260 x 442 x 287.5 mm (10.2 x 17.4 x 11.3 in)

Weight 5 kg (11 lb)

Color light grey (RAL 7035)

Cable diameter 6 mm to 8 mm (0.24 inch to 0.31 inch)

Environmental requirements

Operating temperature - 25 ° C to + 55 ° C (- 13 ° f to + 131 ° f)

Storage temperature - 40 ° C to + 70 ° C (- 40 ° f to + 158 ° f)

Relative humidity < 95%

Ordering Information

LBC 3700 / 00 horn speaker

45 W, light grey

LBC3700/00

Hardware accessories

LBC 1256 / 00 evac connection adapter

3-pole screw connector, 100

Sales telephone (same number of wechat): 13428785305 QQ: 2461903042