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

3 | LBC 340x/16 Horn Loudspeakers

LBN 9001/00 Driver Unit, 30 W

Horn driver 30 W, for use with LBC3403/16 (10"),
LBC3404/16 (14"), LBC3405/16 (20"), and
LBC3406/16 (15 x 9") horns.

Order number LBN9001/00

LBN 9003/00 Driver Unit, 50 W

Horn driver 50 W, for use with LBC3403/16 (10"),
LBC3404/16 (14"), LBC3405/16 (20"), and
LBC3406/16 (15 x 9") horns.

Order number LBN9003/00

| LBC 340x/16 Horn Loudspeakers

Represented by:

Americas: Europe, Middle East, Africa: Asia-Pacific: China: America Latina:

Bosch Security Systems, Inc.
12000 Portland Avenue South
Burnsville MN 55337, USA
Phone: [phone]
Fax: [phone]
[e-mail]
www.boschsecurity.com

Bosch Security Systems B.V.
P.O. Box 80002
5617 BA Eindhoven, The Netherlands
Phone: + 31 40 2577 284
Fax: [phone]
[e-mail]
www.boschsecurity.com

Robert Bosch (SEA) Pte Ltd, Security
Systems
11 Bishan Street 21
Singapore 573943
Phone: [phone]
Fax: [phone]
[e-mail]
www.boschsecurity.asia

Bosch (Shanghai) Security Systems Ltd.
201 Building, No. 333 Fuquan Road
North IBP
Changning District, Shanghai
200335 China
Phone [phone]
Fax: [phone]
www.boschsecurity.com.cn

Robert Bosch Ltda Security Systems Division
Via Anhanguera, Km 98
CEP 13065-900
Campinas, Sao Paulo, Brazil
Phone: [phone]
Fax: [phone]
[e-mail]
www.boschsecurity.com

© Bosch Security Systems 2015 | Data subject to change without notice
1934250507 | en, V4, 01. Jul 2015

4

LBC 340x/16 Horn Loudspeakers

LBC 3403/16 Horn,

Circular, 10" without Driver

LBC 3404/16 Horn,
Circular, 15" without Driver

LBC 3405/16 Horn,
Circular, 20" without Driver

Electrical

Sound pressure level at
rated power/1 W
(1 kHz, 1 m) with driver:
LBN 9000/00
LBN 9001/00
LBN 9003/00

Eff. frequency range
(-10 dB) with driver:
LBN 9000/00
LBN 9001/00
LBN 9003/00

Opening angle
at 1 kHz/4 kHz (-6 dB)

Mechanical

Dimensions (L x D) 387 x 255 mm

121 / 109 dB (SPL)
125 / 110 dB (SPL)
127 / 110 dB (SPL)

400 Hz to 7 kHz
350 Hz to 6 kHz
380 Hz to 10 kHz

124 / 112 dB (SPL)
128 / 113 dB (SPL)
130 / 113 dB (SPL)

400 Hz to 9 kHz
300 Hz to 8.5 kHz
350 Hz to 10 kHz

125 / 113 dB (SPL)
129 / 114 dB (SPL)
132 / 115 dB (SPL)

400 Hz to 9 kHz
300 Hz to 8 kHz
350 Hz to 9 kHz

90° / 30° 70° / 25° 60° / 35° 100° / 35° horizontal

(15.25 x 10.47 in)

422 x 380 mm
(16.63 x 14.97 in)

487 x 510 mm
(19.19 x 20.09 in)

LBC 3406/16 Horn,
Rectangular, 9 x 15"
without Driver

122 / 110 dB (SPL)
127 / 112 dB (SPL)
129 / 112 dB (SPL)

350 Hz to 6.5 kHz
300 Hz to 8 kHz
380 Hz to 10 kHz

65° / 30° vertical

422 x (390 x 235) mm
(16.63 x (15.37 x 9.26) in)

Weight (without driver) 2.94 kg (6.48 lb) 3.34 kg (7.36 lb) 3.54 kg (7.80 lb) 3.14 kg (6.92 lb)

Color light grey

(RAL 7035)

Cable diameter 6 to 10.5 mm

(0.24 to 0.41 in)

light grey
(RAL 7035)

6 to 10.5 mm
(0.24 to 0.41 in)

light grey
(RAL 7035)

6 to 10.5 mm
(0.24 to 0.41 in)

light grey
(RAL 7035)

6 to 10.5 mm
(0.24 to 0.41 in)

Environmental

Operating temperature -25° to +55°C

(-13° to 131°F)

Storage temperature -40 to +70 ºC

(-40 to +158 ºF)

-25° to +55°C
(-13° to 131°F)

-40 to +70 ºC
(-40 to +158 ºF)

-25° to +55°C
(-13° to 131°F)

-40 to +70 ºC
(-40 to +158 ºF)

-25° to +55°C
(-13° to 131°F)

-40 to +70 ºC
(-40 to +158 ºF)

Relative humidity <95% <95% <95% <95%