LBC 34xx/12 Horn Loudspeakers

Transcription

1 Commnications Systems LBC xx/ Horn Lodspeakers LBC xx/ Horn Lodspeakers High efficien drivers Up to W ( power) Wide opening angle Excellent speech reprodction Simple power setting Bosch high-efficien horn lodspeakers provide excellent speech reprodction and sond distribtion for a wide scope of otdoor applications. They are ideal for sports gronds, parks, exhibitions, factories and swimming pools. System Overview The LBC / is a circlar horn lodspeaker, and the LBC / is a rectanglar model. Both are W, and are made from ABS. The LBC / is a circlar, W horn lodspeaker with a large horn measring mm in diameter. It is made from a combination of alminm with ABS for optimm strength and low weight. The edge of the horn is covered with a PVC profile for protection against impact damage. The LBC / is a circlar, W horn lodspeaker with a large horn measring mm in diameter. It is made from a combination of alminm with ABS for optimm strength and low weight. The edge of the horn is covered with PVC for protection against impact damage. Fnctions All for models are for direct connection to a V line otpt and are finished in light grey (RAL ). The horns are water and dst protected. The horn lodspeakers inclde a V transformer with taps on the primary winding to allow different power settings. Nominal fll-power, half-power or qarter-power radiation (in db steps) can easily be selected by connecting the amplifier otpt to the appropriate tap. A m for-core cable is fitted to the horns. Each core is a different color, and is connected to one of the primary taps on the transformer. The horn lodspeakers are spplied complete with strdy adjstable monting brackets, allowing the sond beam to be accrately directed. Certifications and Approvals All Bosch lodspeakers are designed to withstand operating at their rated power for hors in accordance with IEC - Power Handling Capacity (PHC) standards. Bosch has also developed the Simlated Acostical Feedback Exposre (SAFE) test to demonstrate that they can withstand two times their rated power for short drations. This ensres extra reliability nder extreme conditions, leading to

2 LBC xx/ Horn Lodspeakers higher cstomer satisfaction, longer operating life, and mch less chance of failre or performance deterioration. Safety acc. to EN Self-extingishing Water and dst protection acc. to UL V acc. to EN IP Region Certification Erope CE Declaration of Conformity Installation/Configration Notes LBC / Polar diagram (measred with pink noise) k k k k Q-factor H. angle - - Circit diagram V. angle - - Acostical performance specified per octave LBC / Freqen response

3 LBC xx/ Horn Lodspeakers Circit diagram Freqen response k k k k Polar diagram vertical (measred with pink noise) Q-factor H. angle - - V. angle - - Acostical performance specified per octave Polar diagram horizontal (measred with pink noise)

4 LBC xx/ Horn Lodspeakers LBC / k k k k. - - Q-factor H. angle - V. angle - Acostical performance specified per octave LBC / Circit diagram Freqen response Circit diagram Freqen response Polar diagram (measred with pink noise)

5 LBC xx/ Horn Lodspeakers Accessories LBC / EVAC Connection Adapter -pole screw connector, pieces Order nmber LBC/ Polar diagram (measred with pink noise) k k k k. - - Q-factor H. angle - V. angle - Acostical performance specified per octave Ordering Information LBC / Horn Lodspeaker, Circlar, W W, circlar Order nmber LBC/ LBC / Horn Lodspeaker, Rectanglar, W W, rectanglar Order nmber LBC/ LBC / Horn Lodspeaker, Circlar, W W, circlar Order nmber LBC/ LBC / Horn Lodspeaker, Circlar, W W, circlar Order nmber LBC/

6 LBC xx/ Horn Lodspeakers Technical Specifications LBC / Horn Lodspeaker, Circlar, W LBC / Horn Lodspeaker, Rectanglar, W LBC / Horn Lodspeaker, Circlar, W LBC / Horn Lodspeaker, Circlar, W Electrical Max power W W W W Rated power (PHC) / /. W / /. W / / W / /. W Sond pressre level at rated power / W ( k, m) Sond pressre level at rated power / W ( k, m) Effective freqen range (- db) db / db () db / db () db / db () db / db () db / db () db / db () db / db () db / db () to k to.k to.k to k Opening angle horizontal vertical k / k (- db) / / k / k (- db) / / k / k (- db) / / k / k (- db) / / Rated voltage V V V V Rated impedance ohm ohm ohm ohm Connection m, -wire cable m, -wire cable m, -wire cable m, -wire cable Mechanical Dimensions (L x W) - x mm. x. in - - Apertre (L x W) Apertre diameter mm (. in) x mm (. x. in) mm (. in) mm (. in) Overall length mm (. in) mm (. in) mm (. in) mm (. in) Color Light grey (RAL ) Light grey (RAL ) Light grey (RAL ) Light grey (RAL ) Weight. kg (. lb). kg (. lb). kg (. lb) kg (. lb) Environmental Operating temperatre - ºC to + ºC (- ºF to + ºF) - ºC to + ºC (- ºF to + ºF) - ºC to + ºC (- ºF to + ºF) - ºC to + ºC (- ºF to + ºF) Storage temperatre - ºC to + ºC (- ºF to + ºF) - ºC to + ºC (- ºF to + ºF) - ºC to + ºC (- ºF to + ºF) - ºC to + ºC (- ºF to + ºF) Relative hmidity <% <% <% <%

7 LBC xx/ Horn Lodspeakers Represented by: Americas: Erope, Middle East, Africa: Asia-Pacific: Bosch Commnications Systems Portland Avene Soth Brnsville, Minnesota, USA Phone: +--- Fax: +--- Bosch Secrity Systems B.V. P.O. Box JB Eindhoven, The Netherlands Phone: + Fax: + emea.secritysystems@bosch.com Robert Bosch (SEA) Pte Ltd Bishan Street Singapore Phone: + Fax: + apr.secritysystems@bosch.com Bosch Secrity Systems Data sbject to change withot notice en, V,. Apr