The LA1-UW36-x is a 36W column loudspeaker for indoor use where directivity is important. It has high sensitivity and provides good speech intelligibility and background music reproduction. It has a swivel wall mounting bracket and is available in black or white. It uses four dual cone drivers and a durable MDF enclosure for reliability under extreme conditions.

1. Communications Systems | LA1‑UW36‑x Column Loudspeakers
LA1‑UW36‑x Column Loudspeakers
www.boschsecurity.com
u Good speech intelligibility and background music
reproduction
u For applications where directivity is important
u High sensitivity
u Swivel wall mounting bracket supplied as standard
u Available in black or white
The LA1-UW36-x is a 36 W, general-purpose, cost- extra reliability under extreme conditions, leading to
effective column loudspeaker for indoor use where higher customer satisfaction, longer operating life, and
beaming is desirable, such as places of worship, much less chance of failure or performance
congress venues, meeting rooms and canteens. A deterioration.
swivel wall mounting bracket is supplied as standard.
The column loudspeaker is available in black and Safety acc. to EN 60065
white.
Installation/configuration notes
Functions
The column loudspeakers can be wall mounted using
The robust, solid MDF (Medium Density Fiber board) the supplied swivel bracket, allowing accurate
enclosures are covered with a durable, easy-to-clean positioning. A convenient, easy-to-use, four-pole push-
vinyl in a choice of black or white. The ABS fronts are in terminal block is present on the rear panel for on-
covered with fine woven cloth in matching color. site wiring. This terminal block has provision for power
tapping on the 100 V, matching transformer in the
These powerful column loudspeakers are fitted with cabinet. It allows selection of nominal full-power, half-
four dual cone high sensitivity loudspeaker drivers. power or quarter-power radiation (in 3 dB steps).
Certifications and approvals
All Bosch loudspeakers are designed to withstand
operating at their rated power for 100 hours in
accordance with IEC 268-5 Power Handling Capacity
(PHC) standards. Bosch has also developed the
Simulated Acoustical Feedback Exposure (SAFE) test
to demonstrate that they can withstand two times
their rated power for short durations. This ensures

2. 2 | LA1‑UW36‑x Column Loudspeakers
120
841.0
Frequency response
151.0 129.0
Dimensions in mm
42.0
1.65
Polar diagram horizontal (measured with pink noise)
121.0
4.76
6.3
0.25
6.3
14.0 0.25
0.55
14.0
0.55
0.91
23.0
22.1
0.87
40.9 11.1
1.61 0.44 mm
63.0
2.48 in
Bracket dimensions
Ø
~
Polar diagram vertical (measured with pink noise)
Parts included
Circuit diagram
Quantity Component
1 LA1-UW36-x Column Loudspeaker
1 Swivel wall mounting bracket

3. 3 | LA1‑UW36‑x Column Loudspeakers
Technical specifications
Electrical*
Maximum power 54 W
Rated power 36 / 18 / 9 W
Sound pressure level 114 dB / 98 dB (SPL)
at 36 W / 1 W (1 kHz, 1 m)
Effective frequency range 160 Hz to 19 kHz
(-10 dB)
Opening angle 1 kHz / 4 kHz (-6 dB)
horizontal 190° / 88°
vertical 30° / 8°
Rated input voltage 100 V
Rated impedance 278 ohm
Connector 4-pole push-in terminal block
* Technical performance data acc. to IEC 60268-5
Mechanical
Dimensions (H x W x D) 841x 151 x 129 mm
(33.1 x 5.9 x 5.1 in)
Weight 6 kg ( 13.2 lb)
Color Black (D) or white (L)
cabinet / cloth (D) Matches RAL 9004 / RAL 9004
cabinet / cloth (L) Matches RAL 9010 / RAL 7044
Environmental
Operating temperature -25 ºC to +55ºC (-13 ºF to +131 ºF)
Storage temperature -40 ºC to +70 ºC (-40 ºF to +158 ºF)
Relative humidity <95%
Ordering information
LA1‑UW36‑D Column Loudspeaker
36 W, black
Order number LA1-UW36-D
LA1‑UW36‑L Column Loudspeaker
36 W, white
Order number LA1-UW36-L
Represented by:
Americas: Europe, Middle East, Africa: Asia-Pacific: China: America Latina:
Bosch Security Systems, Inc. Bosch Security Systems B.V. Robert Bosch (SEA) Pte Ltd, Security Bosch (Shanghai) Security Systems Ltd. Robert Bosch Ltda Security Systems Division
12000 Portland Avenue South P.O. Box 80002 Systems 201 Building, No. 333 Fuquan Road Via Anhanguera, Km 98
Burnsville MN 55337, USA 5617 BA Eindhoven, The Netherlands 11 Bishan Street 21 North IBP CEP 13065-900
Phone: +1-800-392-3497 Phone: + 31 40 2577 284 Singapore 573943 Changning District, Shanghai Campinas, Sao Paulo, Brazil
Fax: +1-800-955-6831 Fax: +31 40 2577 330 Phone: +65 6571 2808 200335 China Phone: +55 19 2103 2860
audiosupport@us.bosch.com emea.securitysystems@bosch.com Fax: +65 6571 2699 Phone +86 21 22181111 Fax: +55 19 2103 2862
www.boschsecurity.com www.boschsecurity.com apr.securitysystems@bosch.com Fax: +86 21 22182398 al.securitysystems@bosch.com
www.boschsecurity.asia www.boschsecurity.com.cn www.boschsecurity.com
© Bosch Security Systems 2012 | Data subject to change without notice
1911110155 | en, V2, 24. Nov 2012