Bosch LB20-PC15-4L, LB20-PC15-4D Specsheet

Communications Systems | LB20-PC15-4 Speaker 4" cabinet 70/100V pair

LB20-PC15-4 Speaker 4" cabinet 70/100V pair

www.boschsecurity.com

u Innovative mount system is included for quick,

simple, and reliable installations

The LB20-PC15-4, from Bosch, is a high-performance, two-way, full-range, 4" (102 mm) surface mount speaker with excellent wide, uniform coverage, and outstanding performance. It is designed for background and foreground music, paging, and sound reinforcement, and it's ideal for a wide variety of indoor and outdoor applications, such as restaurants, bars, patios, retail, fitness clubs, hospitality, theme parks, leisure venues, and others. With unparalleled ease-of-installation, sturdy weather resistance, modern and delicate look, and it's flexible mounting options, the LB20-PC15-4 is the perfect solution for a wide variety of surface mount applications. The LB20-PC15-4 includes the unique and innovative mounting system, from Bosch, making every installation quick, simple, and reliable. The mounting system allows for 90 degrees of rotation horizontally, and 45 degrees of rotation vertically, and it can be easily installed on walls and ceilings. The mounting system comes already assembled and ready to be used, ready to make any job easier. The LB20-PC15-4 utilizes a 15 W transformer, that offers a selection of 3.7 W (70 V only), 7.5 W or 15 W delivered to the speaker system using either 70 V or

u Carefully engineered for outdoor environments

(IP54), without compromising performance

u Long throw 4" (102 mm) woofer housed in a fire

rated ABS plastic enclosure for extended LF performance down to 75 Hz

100 V lines. Selection is done with a Euroblock connector on the input panel located on the rear of the speaker. The LB20-PC15-4 has been carefully engineered to resist outdoor environments, without compromising on performance for indoor applications. The full-range speaker is IP54 rated, and its weather-proofing is complemented with exceptional cabinet and grille resistance against sun, salt and moisture. All LB20 models are available in black or white, and can be easily painted to match the décor. Transformer versions are also available for constant voltage systems. The wide range of LB20 surface mount speakers has been designed to work together as a complete system in a variety of different surface mount constructions, and to be used in combination with other LB20 ceiling and in-wall speakers.

| LB20-PC15-4 Speaker 4" cabinet 70/100V pair

Technical specifications

Frequency response (-3 dB): 100 Hz - 20 kHz

Frequency response (-10 dB): 75 Hz - 20 kHz

Sensitivity: 86.5 dB

Max SPL (calculated): 98.5 dB (104.5 dB Peak)

Coverage angle: Horizontal 110°, Vertical 110°

Power handling: 15 W (60 W Peak) Continuous

Pink Noise (100 hours)

Low Z: No

Recommended High-Pass: 70 Hz (24 dB/octave)

Input transformer (70V/100V): 15 W

Transformer taps: 70 V: 3.7 W, 7.5 W, 15 W

100 V: 7.5 W, 15 W

LF transducer: 4 inch (102 mm)

HF transducer: 0.75 inch (20 mm)

Connectors: Captive screws on wall bracket.

Max. wire size 12AWG (2.5 mm).

Environmental: IP54 (per IEC-60529)

Color: Black (RAL 9004) or white (RAL

9003)

Dimensions (H x W x D): 193 mm x 140 mm x 120 mm

(7.6 in x 5.5 in x 4.7 in)

Net weight: 1.8 kg (4.0 lb)

Shipping weight (pair): 5.4 kg (11.9 lb)

Included hardware: Mounting bracket and 4-mm

Allen wrench

Packaged quantity: 2

Half space (wall mounting).

Half space (on wall) averaged 100 Hz – 10 kHz, 1 W.

Without brackets.

Frequency response and impedance:

Architectural and engineering specifications:

The loudspeaker shall be a surface mount, two-way, full-range system, with an internal passive crossover. The loudspeaker's low-frequency transducer shall be a 4" (102 mm) woofer, with a weather resistant poly propylene cone, and a 1" (25 mm) voice-coil. The loudspeaker's high-frequency transducer shall be a

0.75" (20 mm) Ferro fluid cooled driver. The loudspeaker system shall meet the following performance criteria: Power handling, 15 W of IEC 60268-5 continuous pink noise (6 dB crest factor); Frequency response, 75 Hz - 20 kHz (-10 dB from rated sensitivity); Sensitivity, 86.5 dB at one watt, 100 Hz 10 kHz at one meter. The loudspeaker shall have a transformer suitable for use on 70 V or 100 V distributed lines. The transformer shall have taps ranging from 3.7 W to 15 W, selectable using a Euroblock connector on the rear of the enclosure. The high-frequency transducer shall drive a waveguide to cover evenly 110° horizontally by 110° vertically. The finish shall be paintable black (RAL 9004) or paintable white (RAL 9003). The grille shall be zinc plated, and powder coated for corrosion resistance. The loudspeaker shall be adjustable over a range of 90° horizontally and 45° vertically. The support bracket shall be integral with the enclosure. The loudspeaker shall have a ball-and-socket mounting system with a quick attach and detach operation. Electrical connections shall be through the wallportion of the mounting system, and there should be no exposed wire. The system shall be weather resistant to IEC 60068-2-5 Solar Radiation, IEC 60068-2-11 Salt Mist, IEC 60068-2-42 SO2, IEC 60068-2-60 Chlorine, and IEC 60529 IP54 test conditions. The mounting system shall be EIA 636 tested, at a safety factor of 8:1 or better. The enclosure shall be molded of fire rated ABS plastic. The loudspeaker shall weigh 1.8 kg (4.0 lb) and its dimensions shall be 193 mm (7.6 in) high, 140 mm (5.5 in) wide, and 120 mm (4.7 in) deep. The surface mount loudspeaker shall be the LB20-PC15-4 model from Bosch.

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