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Bosch LB1-UM20E-L Premium-sound Cabinet Loudspeaker 20 W White overview

LB1-UM20E-L Premium-Sound Cabinet Loudspeaker Range (20W, White)

Manufacturers Product Description

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. The range comprises two models, offering a choice of 20 W or 50 W power handling capacity. The enclosures are made from aluminum with ABS top and bottom covers and are available in charcoal (D) and white (L).Typical applications for these products are: theme bars, music restaurants, theme parks, retail outlets, audio visual, boardrooms and offices, exhibition areas and presentation environments, fitness centre.Its excellent sound reproduction capability is attributed the superb to the use of high-quality driver components and crossover network design.A self-restoring passive element protects the high frequency driver against incidental overload.A three-way ceramic terminal block with screw connections suitable for loop-through wiring is located in the compartment in the base of the unit.An easy to install, sturdy wall mounting bracket is standard supplied. The same bracket can be used in combination with the universal floor stand LBC 1259/00 for temporary installations.All models are supplied with a built-in 70/100 V transformer with taps on the primary winding for full-power, half-power, quarter-power and one-eighth power radiation. These taps are connected to a rotary vari-tap switch located in the compartment in the base of the enclosure, to allow simple output power setting. A low ohmic connection is also provided on the vari-tap switch.Functions 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-UMx0E-x are designed for voice alarm systems, and are EN 54-24 certified and compliant with BS 5839-8 and EN 60849.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; ensuring loudspeakers in other areas can still be used to inform people of the situation.

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General Information

Manufacturer Website Address
Brand NameBosch
Product TypeSpeaker
ManufacturerThe Bosch Group
Manufacturer Part NumberF.01U.076.929
Packaged Quantity1
Product NameLB1-UM20E-L Premium-sound Cabinet Loudspeaker 20 W White
Product ModelLB1-UM20E-L


Package Contents
  • LB1-UM20E-L Premium-sound Cabinet Loudspeaker 20 W White
  • 1 x Adjustable Wall-Mounting Bracket
  • 1 x Installation Instruction

Technical Information

Minimum Frequency Response90 Hz
Sensitivity101 dB
RMS Output Power20 W
Impedance500 Ohm
Maximum Frequency Response20 kHz
Driver Type127 mm Woofer
PMPO Output Power30 W

Physical Characteristics

Form FactorWall Mountable
Speaker InstallationIndoor/Outdoor
Width160 mm
Depth180 mm
Weight Approximate3.88 kg
Height274 mm
Woofer Diameter127 mm
Dimensions274 mm (H): 160 mm (W): 180 mm (D)


Limited Warranty36 Month

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