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User Manual for Bosch LB1-UM20E-L Premium-Sound Cabinet Loudspeaker Range Click to enlarge the picture
Contents of the user manual for the Bosch LB1-UM20E-L Premium-Sound Cabinet Loudspeaker Range
- Product category: Installed Speakers Bosch
- Brand: Bosch
- Description and content of package
- Technical information and basic settings
- Frequently asked questions – FAQ
- Troubleshooting (does not switch on, does not respond, error message, what do I do if...)
- Authorized service for Bosch Installed Speakers
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User manual for the Bosch LB1-UM20E-L Premium-Sound Cabinet Loudspeaker Range contain basic instructions
that need to be followed during installation and operation.
Before starting your appliance, the user manual should be read through carefully.
Follow all the safety instructions and warnings, and be guided by the given recommendations.
User manual is an integral part of any Bosch product,
and if it is sold or transferred, they should be handed over jointly with the product.
Following the instructions for use is an essential prerequisite for protecting
health and property during use, as well as recognition of liability on the part of the manufacturer
for possible defects should you make a warranty claim. Download an official Bosch user manual in which you will find instructions on how to install, use, maintain and service your product.
And do not forget – unsuitable use of a Bosch product will considerably shorten its lifespan!
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Product description The 20W white LB1-UM20E-L Premium-Sound Cabinet Loudspeaker Range from Bosch is intended for clear reproduction of speech, foreground, and background music to be used in general indoor and outdoor applications. The range has a 20 W power handling capacity. The enclosures are made from aluminum with ABS top and bottom covers.The typical applications are theme bars, music restaurants, theme parks, retail outlets, audio visual, boardrooms and offices, exhibition areas and presentation environments, and fitness centers. Its sound reproduction capability is attributed 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 3-way ceramic terminal block with screw connections suitable for loop-through wiring is located in the compartment, at 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.It is 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 at the base of the enclosure, to allow simple output power setting. A low ohmic connection is also provided on the vari-tap switch. - Voice Alarm
- This Voice alarm loudspeaker is specifically designed for use in buildings, where the performance of Public Address systems is subject to official regulations. It is designed for voice alarm systems, and is EN 54-24 certified and compliant with BS 5839-8 and EN 60849.
- Protection
- The loudspeaker has built-in protection to ensure that in the event of a fire damage there is no 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.
- Connections and Safety
- The loudspeaker has a ceramic terminal block, thermal fuse, and heat-resistant, high-temperature wiring. The cabinets have a provision for internally mounting the line/loudspeaker supervision board (sold separately).
- Certifications and Approvals
- The loudspeaker is designed to withstand operating at its 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 the speakers can withstand 2 times their rated power for short durations.
This ensures extra reliability under extreme conditions, leading to greater customer satisfaction, longer operating life, and much less chance of failure or performance deterioration. - General
- High-fidelity music and speech reproduction
Supplied with adjustable wall-mounting bracket
Self-restoring overload protection
Provision for internal mounting of the line / loudspeaker supervision board (sold separately)
EN 54-24 certified In the Box Bosch LB1-UM20E-L Premium-Sound Cabinet Loudspeaker Range (20W, White) Mounting Bracket Limited 3-Year Warranty Table of Contents
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Technical parametersBosch LB1-UM20E-L Specs | | | Maximum Power | 30 W | | Rated Power | PHC: 20 W | | Power Taps | 20 / 10 / 5 / 2.5 W | | Sound Pressure | Level: At Rated Power / 1 W (1 kHz, 3.2' (1.0 m)): 101 dB / 88 dB (SPL) | | Frequency Range | Effective (-10 dB): 90 Hz to 20 kHz | | Opening | Angle: At 1 kHz / 4 kHz (-6 dB):
Horizontal: 174° / 136°
Vertical: 127° / 141° | | Input Voltage | Rated: 12.65 / 70 / 100 V | | Impedance | Rated: 8 / 250 / 500 Ω | | Connector | 3-pole screw block | | Sensitivity | Octave SPL 1 W/1 m:
125 Hz: 82.5
250 Hz: 82.5
500 Hz: 85.4
1000 Hz: 88.2
2000 Hz: 88.0
4000 Hz: 85.5
8000 Hz: 86.3
Total octave SPL 1 W/m:
A-weighted: 84.1
Lin-weighted: 85.0
Total octave SPL Pmax/m:
A-weighted: 96.4
Lin-weighted: 97.4 Acoustical performance specified per octave. All measurements are done with a pink noise signal; the values are in dBSPL. | | Angle | Horizontal
125 Hz: 360
250 Hz: 360
500 Hz: 206
1000 Hz: 174
2000 Hz: 128
4000 Hz: 136
8000 Hz: 132
Vertical:
125 Hz: 360
250 Hz: 360
500 Hz: 360
1000 Hz: 127
2000 Hz: 141
4000 Hz: 141
8000 Hz: 117 | | | | Operating Temperature | -13 to +131°F (-25 to +55°C) | | Storage Temperature | -40 to +158°F (-40 to +70°C) | | Relative Humidity | <95% | | | | Safety | According to EN 60065 | | Emergency | According to BS 5839-8, EN 60849, & EN 54-24 | | Water and Dust Resistance | According to EN60529 IP65 | | Self-Extinguishing ABS | According to UL 94 V 0 | | Force | Wind: According to NEN 6702:2007 +A1: 2008, Bft11 | | Certification | Europe CPD | | | | Material | Cabinet: Aluminum
Front Grille: Aluminum
Top and Bottom: ABS | | Diameter | Loudspeaker: Woofer: 5.0" (134.5 mm)
Dome Tweeter: 1.0" (25.4 mm) | | Dimensions | 10.78 x 6.29 x 7.08" (274.00 x 160.00 x 180.00 mm) | | Weight | 8.55 lb (3.88 kg) | | | | Package Weight | 9.866 lb | | Box Dimensions (LxWxH) | 0.44 x 0.24 x 0.24" | Note: Technical performance data according to IEC 60268-5.
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