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LA1-UM20E-1

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LA1-UM40E-1
LA1-UM40E-1
LA1-UM20E-1

LA1-UM20E-1

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A slim 20 W aluminium column loudspeaker for speech where directivity matters: passenger terminals, places of worship, conference venues, pools and factories. IP65 for indoor and outdoor use, designed for voice alarm to EN 54-24. 70 V, 100 V or 8 ohm; swivel bracket supplied. Scroll down for details.

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  • Brand - BOSCH
BOSCH
BOSCH

Global leader in Public Address, Voice Evacuation and Conference Systems.

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BOSCH
BOSCH

Global leader in Public Address, Voice Evacuation and Conference Systems.

Column & Line Array

LA1-UM20E-1

Metal column loudspeaker, 20W

20 / 10 / 5 / 2.5 W | Aluminium enclosure and grille | 92 dB SPL (1W, 1m) | 240 Hz to 16 kHz | EN54-24

Bosch LA1-UM20E-1 Product Highlights

Explore the key capabilities of the Bosch LA1-UM20E-1 column loudspeaker.

Directed Sound

A narrow vertical beam, 80° / 22° V, keeps speech clear in echoing spaces.

Voice Alarm, EN 54-24

To EN 54-24, with ceramic terminal, thermal fuse and heat-resistant wiring.

IP65 Slim Aluminium

Slim, weatherproof aluminium column for indoor and outdoor use.

Swivel Bracket on a Slider

The bracket slides to any point along the back; or fit a floor stand.

Rotary Tap Switch

20 / 10 / 5 / 2.5 W on 70 V or 100 V, or 8 ohm.

Terminals and Worship

Passenger terminals, places of worship, conference venues, pools.

Key specs

  • Taps 20 / 10 / 5 / 2.5 W (70 / 100 V), 8 ohm
  • Max 30 W
  • 105 / 92 dB SPL at rated / 1 W (1 kHz, 1 m)
  • 240 Hz to 16 kHz (-10 dB)
  • Opening angle 210° / 94° H, 80° / 22° V (1 / 4 kHz)
  • 478 x 84 x 96 mm, 2.9 kg
  • Aluminium enclosure and grille, ABS end caps
  • 1 m 3-wire cable, ceramic terminal, thermal fuse
  • IP65
  • White RAL 9010
  • EN 54-24 (CPR)
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Electrical

Maximum power

30 W

Rated power (PHC)

20 W

Power tapping

20 / 10 / 5 / 2.5 W

Sound pressure level at rated power / 1 W (1 kHz, 1 m)

105 / 92 dB (SPL)

Sound pressure level at rated power / 1 W (4 kHz, 1 m)

108 / 95 dB (SPL)

Effective frequency range (-10 dB)

240 Hz to 16 kHz

Horizontal opening angle at 1 kHz / 4 kHz (-6 dB)

210°/ 94°

Vertical opening angle at 1kHz/4kHz (-6 dB)

80°/ 22°

Rated input voltage

12.65/70/100 V

Rated impedance

8/251/500 ohm

Mechanical

Dimensions (L x W x D)

450 x 84 x 96 mm

Weight

2.9 kg (6.4 lb)

Color

White (RAL 9010)

Material (housing and grille)

Extruded aluminum / steel

Connection

2 m (78.8 in) 3-wire cable

Connector

(phase, common, earth)

3‑pole screw block

Environmental

Operating temperature

-25 ºC to +55 ºC (-13 ºF to +131 ºF)

Storage temperature

-40 ºC to +70 ºC (-40 ºF to +158 ºF)

Relative humidity

<95%
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