Bosch LB1-UM50E-D & LB1-UM50E-L EN54-24 Premium Cabinet Loudspeaker

The Bosch LB1-UM50E-D & LB1-UM50E-L EN54-24 cabinet loudspeaker is rated at 50 watts and is suitable for clear reproduction of speech, foreground and background music.

Integral safety features ensure that the LB1UM50E is compliant with EN54-24, for use in emergency voice evacuation systems.

The input is selectable between 70V, 100 volt line and 8 ohm.

A sturdy wall mounting bracket is supplied.

Available in charcoal: LB1-UM50E-D or white: LB1-UM50E-L.

  • High-fidelity music and speech reproduction
  • Supplied with adjustable wall?mounting bracket
  • Self?restoring overload protection
  • Provision for internal mounting of the optional line / loudspeaker supervision board
  • EN 54?24 certified
  • Water resistant. IP65 rated.

*Please note that the charcoal coloured speaker in the image above is the LB1-UM20E


Description LB1?UM50E cabinet loudspeaker
Maximum power 75 W
Rated power (PHC) 50 W
Power tapping 50/25/12.5/6.2/5 W
Sound pressure levelat rated power / 1 W (70 Hz, 1 m) 108 / 91 dB
Effective frequency range (-10 dB) 90 Hz to 20 kHz
Rated input voltage 20/70/100 V
Rated impedance 8/100/200 Ohm
Connector 3 pole screw block
Dimensions (H x W x D) 405 x 160 x 180 mm(15.94 x 6.29 x 7.08 in)
Weight 5.58kg (12.3 lb)
Color White (RAL 9010) or Charcoal (RAL7021)
– Loudspeaker cabinet & front grille Aluminium
– Top & bottom ABS
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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