Column Loudspeakers. Communications Systems Column Loudspeakers. Good speech intelligibility and background music reproduction

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1 Commnications Systems Colmn Lodspeakers Colmn Lodspeakers Good speech intelligibility and backgrond msic reprodction For applications where directivity is important High sensitivity Swivel wall-monting bracket spplied as standard Available in black or white The Colmn Lodspeakers are, general-prpose, cost effective colmn lodspeakers for indoor se where beaming is desirable, sch as places of worship, conference venes, meeting rooms, and canteens. The colmn lodspeaker is available in 24 W and 36 W rated power, and in dark or light color. A swivel wall monting bracket is spplied as standard. Fnctions The robst, solid MDF (Medim Density Fiber board) enclosres are covered with a drable, easy-to-clean vinyl in a choice of black or white. The ABS fronts are covered with fine woven cloth in matching color. These powerfl colmn lodspeakers are fitted with for dal-cone, high-sensitivity, lodspeaker drivers. Certifications and approvals Qality assrance All Bosch lodspeakers are designed to withstand operating at their rated power for 1 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 improved reliability nder extreme conditions, leading to higher cstomer satisfaction, longer operating life, and lessons the chance of failre or performance deterioration. Safety acc. to EN 665 Region Erope Certification CE CE Installation/configration notes The colmn lodspeakers can be wall monted sing the spplied swivel bracket, allowing accrate positioning. A convenient, easy to se, doble five pole psh in terminal block is present on the rear panel for on-site wiring. This terminal block has provision for power tapping on the 7 V / 1 V, matching transformer in the cabinet. It allows selection of nominal fll-power, half-power, qarter-power or eightpower radiation (in 3 db steps).

2 2 Colmn Lodspeakers 152 mm / 5.98" 127 mm / 5" 7 V 1 V 839 mm / mm / W 18 W 9 W 4,5 W 36 W 18 W 9 W 4,5 W LA1 UW24 x1 dimensions 152 mm / 5.98" 127 mm / 5" LA1 UW36 x1 circit diagram db mm / mm / Freqency LA1 UW24 x1 freqency response db LA1 UW36 x1 dimensions 7 V 1 V Freqency LA1 UW36 x1 freqency response 24 W 12 W 6 W 3 W 24 W 12 W 6 W 3 W Note: The freqency response is based on measrements at a distance of 1 meter and 4 meter on the main axis. LA1 UW24 x1 circit diagram

3 3 Colmn Lodspeakers LA1 UW24 x1 polar diagram horizontal (low freqency) LA1 UW24 x1 polar diagram vertical (low freqency) LA1 UW24 x1 polar diagram horizontal (high freqency) LA1 UW24 x1 polar diagram vertical (high freqency) Polar diagrams are measred with pink noise. Normalized at the degree axis.

4 4 Colmn Lodspeakers LA1 UW36 x1 polar diagram horizontal (low freqency) LA1 UW36 x1 polar diagram vertical (low freqency) LA1 UW36 x1 polar diagram horizontal (high freqency) LA1 UW36 -x1 polar diagram vertical (high freqency) Polar diagrams are measred with pink noise. Normalized at the degree axis.

5 5 Colmn Lodspeakers Octave band sensitivity* LA1 UW24 x1 Octave 125 Hz Hz Hz Hz Hz Hz Hz Pmax/1m A-weighted Lin-weighted Octave band opening angles LA1 UW24 x1 Horizontal Vertical 125 Hz Hz Hz Hz Hz Hz Hz Octave band sensitivity* LA1 UW36 x1 Octave 125 Hz Hz Hz Hz Hz Hz Hz Pmax/1m A-weighted Lin-weighted Octave band opening angles LA1 UW36 x1 Horizontal Vertical 125 Hz Hz Hz Hz Hz Hz Hz Acostical performance specified per octave * (all measrements are done with a pink noise signal; the vales are in db ) Parts inclded Qantity Component 1 LA1 UW24 x1 Colmn Lodspeaker or LA1 UW36 x1 Colmn Lodspeaker 1 Swivel wall monting bracket Technical specifications Electrical* Colmn Lodspeaker type LA1 UW24 D1/ L1 Maximm power 36 W 54 W Rated power 24 / 12 / 6 / 3 W Sond pressre level at 24 W/36 W / 1 W (1 khz, 1 m) Effective freqency range (-1 db) Opening angle 11 db / 96 db +/- 3 db () 15 Hz to 12.5 khz 1 khz / 4 khz (-6 db) LA1 UW36 D1/ L1 36 / 18 / 9 / 4.5 W 114 db / 98 db +/- 3 db () 16 Hz to 13.5 khz 1 khz / 4 khz (-6 db) horizontal 19 / / 88 vertical 3 / 8 3 / 8 Rated inpt voltage 1 V and 7 V 1 V and 7 V Rated impedance 417 ohm 278 ohm Connector 5 pole psh in terminal block * Technical performance data according to IEC Mechanical Dimensions (H x W x D) Weight LA1 UW24 x1 Weight LA1 UW36 x1 Color 841x 151 x 129 mm (33.1 x 5.9 x 5.1 in) 5.5 kg (12.1 lb) 6 kg (13.2 lb) Black (D1) or white (L1) 5 pole psh in terminal block cabinet / cloth (D1) Matches RAL 94 / RAL 94 cabinet / cloth (L1) Matches RAL 91 / RAL 744

6 6 Colmn Lodspeakers Environmental Operating temperatre -25 ºC to +55ºC (-13 ºF to +131 ºF) Storage temperatre -4 ºC to +7 ºC (-4 ºF to +158 ºF) Relative hmidity <95% Ordering information Colmn Lodspeaker Colmn lodspeaker 24 W, MDF enclosre with finewoven cloth fronts, finished in black, spplied with a swivel wall-monting bracket. Order nmber LA1 UW24 D1 Colmn Lodspeaker Colmn lodspeaker 24 W, MDF enclosre with finewoven cloth fronts, finished in white, spplied with a swivel wall monting bracket. Order nmber LA1 UW24 L1 Colmn Lodspeaker Colmn lodspeaker 36 W, MDF enclosre with finewoven cloth fronts, finished in black, spplied with a swivel wall monting bracket. Order nmber LA1 UW36 D1 Colmn Lodspeaker Colmn lodspeaker 36 W, MDF enclosre with finewoven cloth fronts, finished in white, spplied with a swivel wall monting bracket. Order nmber LA1 UW36 L1 Represented by: Americas: Erope, Middle East, Africa: Asia-Pacific: China: America Latina: Bosch Secrity Systems, Inc. Bosch Secrity Systems B.V. Robert Bosch (SEA) Pte Ltd, Secrity Bosch (Shanghai) Secrity Systems Ltd. Robert Bosch Ltda Secrity Systems Division 12 Portland Avene Soth Brnsville MN 55337, USA Phone: Fax: adiospport@s.bosch.com P.O. Box BA Eindhoven, The Netherlands Phone: Fax: emea.secritysystems@bosch.com Systems 11 Bishan Street 21 Singapore Phone: Fax: apr.secritysystems@bosch.com 21 Bilding, No. 333 Fqan Road North IBP Changning District, Shanghai 2335 China Phone Fax: Via Anhangera, Km 98 CEP Campinas, Sao Palo, Brazil Phone: Fax: latam.boschsecrity@bosch.com Bosch Secrity Systems 215 Data sbject to change withot notice en, V2, 1. Jl 215