Lb1-bw12-x is a high-quality and inexpensive 12 W two-way

 speaker suitable for indoor use. The reflector design of the loudspeaker makes the opening angle very large, so it is very suitable for use in the corridor. Keyholes in the back panel facilitate fast and easy wall mounting. Speakers are available in black or white. Basic function robust MDF (medium density fiberboard) housing covered with durable and easy to clean vinyl film, available in white or black. The front panel is made of ABS material and covered with color matching exquisite speaker cloth. The speaker has two dual basin speaker drivers, which are installed on the inclined reflector plate, which can produce a large opening angle. This model is suitable for use in long corridors, such as shopping arcades. Certificate and accreditation 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 high 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, three keyholes in the rear panel allow easy and fast wall mounting. Convenient and easy to use four pole push in terminal box on the back panel for field wiring. This terminal box provides power tap connections for the 100 V matching transformer in the voice column. This allows the user to choose between rated full power, half power or quarter power radiation (3 dB increments). Dimensions (in mm) 3W Ø ~ circuit diagram frequency response directivity diagram (measured with pink noise) technical specifications electrical specifications * maximum power 18 w rated power 12 / 6 / 3 W 12 W / 1 W sound pressure level (1 kHz, 1 m) 97 / 86 dB (SPL) effective frequency range (- 10 dB) 140 Hz to 20 kHz, 1 kHz / 4 kHz (- 6 dB) opening angle 270 ° / 165 ° Rated input voltage 100 V rated impedance 833 ohm interface 4-pin push in junction box * technical performance data in accordance with IEC 60268-5 standard mechanical dimensions (H x W x D) 240 x 238 x 133 mm (9.4 x 9.3 x 5.24 in.) weight 1.5 kg (3.3 lb) color black (d) or white (L) speaker / cloth (d) ral 9004 standard speaker / fabric (L) ral compliant 9010 / ral 7044 Standard ambient specification 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 Lb1 ￣ bw12 ￣ D bidirectional speaker, dual directional speaker, 12 W, MDF case covered with fine woven fabric at the front end, black coating, with 3 keyholes for wall mounting. Order No. lb1-bw12-d Lb1 ￣ bw12 ￣ l bi directional speaker, 12 W, front end covered with MDF case of fine woven fabric, white coating, with 3 keyholes for wall mounting. Order No. lb1-bw12-l

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