Bosch LB20-PC60-8L, LB20-PC60-8D Specsheet
Communications Systems | LB20-PC60-8 Speaker 8" cabinet 70/100V pair
LB20-PC60-8 Speaker 8" cabinet 70/100V
pair
www.boschsecurity.com
u Innovative mount system is included for quick,
simple, and reliable installations
The LB20-PC60-8 from Bosch is a high-performance,
two-way, full-range, 8" (203 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 its flexible mounting options,
the LB20-PC60-8 is the perfect solution for a wide
variety of surface mount applications.
The LB20-PC60-8 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-PC60-8 utilizes a 60 W transformer, that
offers a selection of 7.5 W (70 V only), 15 W, 30 W, or
60 W delivered to the speaker system using either 70 V
u Carefully engineered for outdoor environments
(IP54), without compromising performance
u Long throw 8" (203 mm) woofer housed in a fire
rated ABS plastic enclosure for extended LF
performance down to 50 Hz
u 90 W power handling provides for 110 dB maximum
SPL (116 dB peak)
or 100 V lines, or 8 Ω bypass for low impedance lines.
Selection is done with a convenient switch on the
input panel located on the rear of the speaker.
The LB20-PC60-8 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-PC60-8 Speaker 8" cabinet 70/100V pair
2
Technical specifications
Frequency response (-3 dB): 70 Hz - 20 kHz
Frequency response (-10 dB): 50 Hz - 20 kHz
Sensitivity: 90 dB
Max SPL (calculated): 110 dB (116 dB Peak)
Coverage angle: Horizontal 90°, Vertical 90°
Power handling: 90 W (360 W Peak) Continuous
Pink Noise (100 hours)
Low Z: Yes
Nominal impedance: 8 Ω
Minimum impedance: 6 Ω
Recommended High-Pass: 50 Hz (24 dB/octave)
Input transformer (70 V/100 V): 60 W
Transformer taps: 70 V: 7.5 W, 15 W, 30 W, 60 W,
8 Ω
100 V: 15 W, 30 W, 60 W, 8 Ω
LF transducer: 8 inch (203 mm)
HF transducer: 1 inch (25 mm)
Connectors: Captive screws on wall bracket.
Removable locking 4-pin
connector (Euroblock) - (2) for
connection to additional speakers
in a distributed line.
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): 390 mm x 250 mm x 224 mm
(15.4 in x 9.8 in x 8.8 in)
Net weight: 5.8 kg (12.8 lb)
Shipping weight (pair): 14.8 kg (32.6 lb)
Included hardware: Mounting bracket and 5-mm Allen
wrench
Packaged quantity: 2
1
Half space (wall mounting).
2
Half space (on wall) averaged 100 Hz – 10 kHz, 1 W.
3
Without brackets.
1
1
2
3
3
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
8" (203 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 1"
(25 mm) Ferro fluid cooled driver, coupled to a baffleintegrated waveguide.
The loudspeaker system shall meet the following
performance criteria: Power handling, 90 W of IEC
60268-5 continuous pink noise (6 dB crest factor);
Frequency response, 50 Hz - 20 kHz (-10 dB from rated
sensitivity); Sensitivity, 90 dB at one watt, 100 Hz - 10
kHz at one meter; Impedance, 8 Ohm nominal, 6 Ohm
minimum.
The loudspeaker shall have a transformer suitable for
use on 70 V or 100 V distributed lines. The transformer
shall have taps ranging from 7.5 W to 60 W, plus an 8
Ohm bypass, selectable using a switch on the rear of
the enclosure. The 8 Ohm bypass selection shall be
protected by a safety screw.
The high-frequency transducer shall drive a waveguide
to cover evenly 90° horizontally by 90° 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 loudspeaker shall have a
secondary electrical connection through a 4-pin
detachable Euroblock connector.
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 5.8 kg (12.8 lb)
and its dimensions shall be 390 mm (15.4 in) high, 250
mm (9.8 in) wide, and 224 mm (8.8 in) deep.
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