Bosch LBC3406-16, LBC3405-16, LBC3404-16, LBC3403-16 Specsheet
Communications Systems | LBC 340x/16 Horn Loudspeakers
LBC 340x/16 Horn Loudspeakers
www.boschsecurity.com
u Excellent acoustic properties
u Choice of driver units
u Water and dust protected to IP 65
The Bosch professional horn loudspeaker system
allows a range of different driver units to be installed
into the various horns. The system includes four horns,
three circular types with aperture diameters of 255,
380 and 510 mm and a rectangular model with an
opening measuring 390 x 235 mm.
Functions
The drivers (ordered separately) are mounted inside
the horn, and the connection cable is fed out through
a cable gland in the cover plate. This makes the
loudspeaker horn/driver unit splash-waterproof, and
therefore ideal for outdoor sound reinforcement
applications. Three driver units are available, a 15 W,
30 W and a 50 W type for 100 V lines only. See
separate datasheet.
In the construction of the horns, maximum use has
been made of standard parts in a modular concept.
The screw thread for securing the driver units is a
standard 1 3/8-inch thread (1 3/8" - 18 UNEF-2A). The
shape of the cover plate gives the horns a distinctive
and easily recognizable style.
The cover plates have provision on their inside face for
mounting the optional line/loudspeaker supervision
board (and for mounting the emergency Connection
Adapter).
u Versatile mounting bracket
u UV light resistant
There is also an extra knock-out hole to enable loopthrough cabling (if loop-through is used, an extra
optional cable gland PG 13.5 must be fitted).
They are made from flame-retardant, high-impact
plastic combining strength with low weight. This
rugged material is resistant to ultraviolet light,
aggressive environments and most industrial
chemicals. The horns (incl. brackets) are finished in
light grey. The sturdy steel mounting bracket
(ST 37‑2 DIN 1652) allows easy mounting and
directing of the horn.
Certifications and approvals
Water and dust protection acc. to IEC 60529, IP 65
(all models)
Self-extinguishing acc. to UL 94 Vo
155
6.10
307
12.09
387
15.24
199
7.83
255
10.04
199
7.83
155
6.10
422
16.61
380
14.96
199
7.83
155
6.10
487
19.17
510
20.08
390
15.35
155
6.10
422
16.61
199
7.83
235
9.25
222
8.74
210
3 holes 11 dia.
3 holes 0.43 dia.
2 x 70
2 x 2.76
11
0.43
20
0.79
30
1.18
8.27
2 | LBC 340x/16 Horn Loudspeakers
Installation/configuration notes
LBC 3403/16 Dimensions in mm (in)
LBC 3404/16 Dimensions in mm (in)
LBC 3405/16 Dimensions in mm (in)
LBC 3406/16 Dimensions in mm (in)
All models mounting bracket dimensions in mm (in)
Ordering information
LBC 3403/16 Horn, Circular, 10" without Driver
Horn 10" without driver unit, circular, high-impact ABS
material, suitable for use with horn drivers
LBN9000/00 (15 W), LBN 9001/00 (30 W), and
LBN9003/00 (50 W), light gray RAL 7035.
Order number LBC3403/16
LBC 3404/16 Horn, Circular, 15" without Driver
Horn 14" without driver unit, circular, high-impact ABS
material, suitable for use with horn drivers
LBN9000/00 (15 W), LBN 9001/00 (30 W), and
LBN9003/00 (50 W), light gray RAL 7035.
Order number LBC3404/16
LBC 3405/16 Horn, Circular, 20" without Driver
Horn 20" without driver unit, circular, high-impact ABS
material, suitable for use with horn drivers
LBN9000/00 (15 W), LBN 9001/00 (30 W), and
LBN9003/00 (50 W), light gray RAL 7035.
Order number LBC3405/16
LBC 3406/16 Horn, Rectangular, 9 x 15" without Driver
Horn 15 x 9" without driver unit, rectangular, highimpact ABS material, suitable for use with horn drivers
LBN9000/00 (15 W), LBN 9001/00 (30 W), and
LBN9003/00 (50 W), light gray RAL 7035.
Order number LBC3406/16
Accessories
LBC 1256/00 EVAC Connection Adapter
Emergency connection adapter, 3-pole screw ceramic
connector with a pre-mounted thermal fuse, to be
installed in series with the 100 V primary connection
of a loudspeaker unit, set of 100 pieces.
Order number LBC1256/00
LBN 9000/00 Driver Unit, 15 W
Horn driver 15 W, for use with LBC3403/16 (10"),
LBC3404/16 (14"), LBC3405/16 (20"), and
LBC3406/16 (15 x 9") horns.
Order number LBN9000/00
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