The Bosch high-efficiency horn speaker provides exceptional

 voice reproduction and sound transmission effects, suitable for a variety of outdoor applications. They are ideal for applications such as stadiums, parks, exhibitions, factories and swimming pools. System overview this series consists of two round horns with openings of 355 mm (14 in) and 490 mm (20 in) in diameter, as well as three actuators, 25 W, 35 W and 50 W. The horn and exciter (ordered separately) are assembled together to form an integrated horn speaker. Using this method to assemble horn and exciter, lbc3472 / 00 and lbc3478 / 00 are equivalent to integrated horn speaker lbc3482 / 00. The assembly combination of lbc3473 / 00 and lbc3479 / 00 is equivalent to the integrated horn speaker lbc3483 / 00. The assembly combination of lbc3474 / 00 and lbc3479 / 00 is equivalent to the integrated horn speaker lbc3484 / 00. The horns lbc3478 / 00 and lbc3479 / 00 are made of aluminum and the horn edges are covered with PVC profiles to prevent damage due to impact. Actuator units lbc3472 / 00, lbc3473 / 00 and LBC 3474 / 00 have aluminum inner cones and are supplied with steel mounting brackets. The back cover of actuator device is made of ABS flame retardant material (in accordance with UL 94 V 0 standard). Horn and exciter with light grey coating (RAL 7035). Note in order to reduce the packaging volume and reduce the cost, the exciter and horn are packed with 6 packages per box. Therefore, the minimum order quantity is 6 actuators and 6 horns. Actuators and horns are to be ordered separately. Certificate and approved quality assurance that all Bosch loudspeakers meet 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 higher reliability of loudspeakers in extreme conditions, improves customer satisfaction, extends service life, and significantly reduces the probability of failure or performance degradation. Safety in accordance with en 60065, waterproof and dustproof in accordance with IEC 60529, IP 65 standards, emergency compliance with en 54 ￣ 24 / BS 5839 ￣ 8

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