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LB1-UM20E-D

Bosch LB1-UM20E-D Premium-sound Cabinet Loudspeaker 20W Charcoal, SPL at rated power / 1 W (1 kHz, 1 m) : 101 dB / 88 dB, Effective frequency range (-10 dB) : 90 Hz to 20 kHz, Opening angle at 1 kHz / 4 kHz (-6 dB) : horizontal 174° / 136°, Vertical 127° / 141°, Aluminum Enclosure

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    Premium Sound Speaker

    The Premium‑sound range of cabinets is intended for clear reproduction of speech, foreground and background music to be used in general indoor and outdoor applications. 

    Voice Alarm

    Voice alarm loudspeakers are specifically designed for use in buildings, where the performance of Public Address systems is subject to official regulations. The LB1‑UM20E‑D are designed for voice alarm systems

    Protection

    The loudspeakers have built‑in protection to ensure that in the event of a fire damage does not cause failure of the connected circuit. In this way, system integrity is maintained.

    Electrical

    Description

    Premium‑sound Cabinet Loudspeaker

    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)

    101 dB / 88 dB (SPL)

    Effective frequency range (-10 dB)

    90 Hz to 20 kHz

    Opening angle at 1 kHz / 4 kHz (-6 dB)

    Horizontal: 174° / 136°

    Vertical: 127° / 141°

    Rated input voltage

    12.65 / 70 / 100 V

    Rated impedance

    8 / 250 / 500 ohm

    Connector

    3‑pole screw block

    Mechanical

    Dimensions

    274x160x180mm

    10.78x6.29x7.08in

     

    Loudspeaker diameter

     

    Woofer

    134.5 mm (5 in)

     

    Dome tweeter

    25.4 mm (1 in)

     

    Material

     

    Cabinet

    Aluminum

     

    Front grille

    Aluminum

     

    Top and bottom

    ABS

     

    Color

    Charcoal

    (RAL 7021) (D)

     

    Weight

    3.88 kg (8.55 lb)

     

    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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