The 20W charcoal LB1-UM20E-D 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.