1. Communications Systems | MCS 3500 Modular Ceiling Loudspeaker System
MCS 3500 Modular Ceiling Loudspeaker
System
www.boschsecurity.com
u Innovative tri-cone loudspeaker
u Excellent speech and music reproduction
u No compromise between acoustics and aesthetics
u Constant directivity with wave guide grille
u Predictable sound quality with (optional back box)
The MCS 3500 Modular Ceiling Loudspeaker System connected. In this way, system integrity is maintained,
removes the need to compromise between acoustic ensuring loudspeakers in other areas can still be used
performance and aesthetic appeal. Three high‑quality to inform people of the situation. The loudspeaker has
loudspeaker units can be fitted with metal or ABS a ceramic terminal block, thermal fuse and heat-
grille finished in a neutral RAL white colour. There is a resistant, high-temperature wiring. It can also be fitted
standard 6 W model, a high-performance 12 W model with an optional fire-dome to increase protection of
and a powerful 24 W model. They are suitable for the cable termination.
excellent speech and music in indoor public address The MCS 3500 loudspeaker units are equipped with
applications. The range also includes a metal fire dynamic tri-cone loudspeakers with exceptional audio
dome, and surface mounting box. The loudspeaker performance in prestigious ‘Prosound’ applications.
units and back box include provision for mounting the The transducer frame is made from high-impact glass
optional line/loudspeaker supervision board. reinforced thermosetting polyester material for
maximum rigidity and excellent sound quality free from
Functions unwanted vibrations. The frame includes a bass reflex
port for improved low frequency response.
Voice alarm loudspeakers are specifically designed for
use in buildings where performance of systems for Certifications and Approvals
verbal evacuation announcements is governed by
regulations. The MCS 3500 range is designed for use All Bosch loudspeakers are designed to withstand
in voice alarm systems and is compliant with British operating at their rated power for 100 hours in
standard BS 5839-8 and EN 60849. accordance with IEC 268‑5 Power Handling Capacity
The loudspeaker has built-in protection to ensure that, (PHC) standards. Bosch has also developed the
in the event of a fire, damage to the loudspeaker does Simulated Acoustical Feedback Exposure (SAFE) test
not result in failure of the circuit to which it is to demonstrate that they can withstand two times
2. 2 | MCS 3500 Modular Ceiling Loudspeaker System
their rated power for short durations. This ensures LBC 3603/01 Wave Guide Grille
extra reliability under extreme conditions, leading to The LBC 3603/01 wave guide grille is a breakthrough
higher customer satisfaction, longer operating life, and in ceiling loudspeaker technology. It ensures a wide
much less chance of failure or performance and equal spread of the important frequency octaves
deterioration. All plastic parts are self extinguishing for speech intelligibility and music clarity, giving the
according to UL 94 V0. MCS 3500 constant directivity. Fewer loudspeakers
are needed to cover a given area, and the noticeable
Safety acc. to EN 60065 ‘fading’ that can occur as a listener walks from one
loudspeaker to another area is eliminated. The wave
Emergency acc. to BS 5839‑8 / EN 60849
guide grille can be applied on all loudspeaker units,
*Water and dust acc. to EN 60529 IP32 although it is acoustical optimized for the
protection LBC 3530/40.
The LBC 3603/01 wave guide grille is supplied with
Notice
the wave guide. The grille features quick bayonet
fittings for securing to the loudspeaker frames.
*Only in combination with the LBC 3665/00 Back
Box. LBC 3665/00 Back Box
The LBC 3665/00 back box can be secured onto the
Region Certification back of the loudspeaker frame (fitted as standard on
the 24 W LBC 3530/40). This results in a bass reflex
Europe CE Declaration of Conformity enclosure for very predictable sound quality. The
Poland CNBOP better controlled cone excursion gives less distortion
of low frequencies at higher power. It also prevents
CNBOP sound traveling via the ceiling cavity to adjacent areas,
fully protects the loudspeaker from dust and makes
Installation/Configuration Notes the unit vermin proof.
Installation LBC 3650/00 Metal Fire Dome
The MCS 3500 series is very installation friendly. A The LBC 3650/00 metal fire dome fits over the back of
cutting template is supplied with each unit, and the the loudspeaker unit, but is secured to the ceiling
loudspeaker frame is secured in ceilings up to 50 mm panel for a better seal around the cut-out made for the
(2 in) thick using three integral screw clamps. A safety loudspeaker. The fire dome combined with the highly
cord allows the installer to temporarily hang the fire resistant thermosetting material used for the
loudspeaker unit on the ceiling support frame during loudspeaker frame means the MCS 3500 system is
installation. This ‘third hand’ is particularly useful certified as F30 according to DIN 4102.
when working on ladders or in confined areas. It also
provides extra reassurance after installation. LBC 3660/01 Surface Mounting Box
For securing the loudspeakers to walls or hard
Terminal block ceilings, the LBC 3660/01 surface mounting box in the
Connections are made using a screw terminal block on same white color as the grille is available.
the frame. This block enables loop-through wiring. Type number overview
Cables are fed through a channel in the loudspeaker
frame, enabling wiring to be carried out from the front LBC 3510/40 9/6 W loudspeaker unit
once the loudspeaker assembly has been mounted.
LBC 3520/40 18/12 W loudspeaker unit
Power tapping on the 100 V matching transformer
allows selection of full-power, half-power or quarter- LBC 3530/40 36/24 W loudspeaker unit
power radiation. A switch at the front of the frame
LBC 3601/01 Circular metal grille
simplifies selection of power setting.
LBC 3602/01 Circular ABS grille
LBC 3601/01 Circular Metal Grille
The LBC 3601/01 is a circular metal grille with a LBC 3603/01 Circular wave guide grille (incl. wave guide)
perforated pattern with quick bayonet fitting for
securing to the loudspeaker frame. LBC 3650/00 Metal fire dome
LBC 3602/01 Circular ABS Grille LBC 3660/01 Surface-mounting box
The LBC 3602/01 is made from self‑extinguishing ABS LBC 3665/00 Back box
material with an attractive perforation pattern with
quick bayonet fitting for securing to the loudspeaker
frame.
6. 6 | MCS 3500 Modular Ceiling Loudspeaker System
LBC 3603/01 metal grille(incl. Wave guide). Dimensions
in mm (in)
Bayonet grille fitting
LBC 3601/01 metal grille Dimensions in mm (in)
Loudspeaker unit without wave guide
LBC 3602/01 ABS grille Dimensions in mm (in
Loudspeaker unit with wave guide
7. 7 | MCS 3500 Modular Ceiling Loudspeaker System
LBC 3650/00 fire dome. Dimension in mm (in)
* Without back box
Parts Included
Quantit Component
y
1 MCS 3500 Modular Ceiling Loudspeaker
1 255 mm circular template
Technical Specifications
LBC 3660/01 surface mounting box. Dimensions in mm Electrical*
(in)
Product LBC 3510/40 LBC 3520/40 LBC 3530/40
Max power 9W 18 W 36 W
Rated power 6 / 3 / 1.5 W 12 / 6 / 3 W 24 / 12 / 6 W
SPL at
RP / 1 W 98 / 90 dB 101 / 90 dB 105 / 91 dB
(1 kHz, 1 m) (SPL) (SPL) (SPL)
SPL at
RP / 1 W 99 / 91 dB 105 / 94 dB 107 / 93 dB
(2 kHz, 1 m) (SPL) (SPL) (SPL
Effective 60 Hz to 60 Hz to 60 Hz to
frequency 20 kHz 20 kHz 20 kHz
range (-10
dB)
LBC 3665/00 back box. Dimensions in mm (in) Opening 155° / 70° 150° / 75° 150° / 70°
angle at
1 kHz/4 kHz
(-6 dB)
Opening 150° / 120° 150° / 120° 145° / 130°
angle at with wave with wave with wave
1 kHz/4 kHz guide guide guide
(-6 dB)
Rated 100 V 100 V 100 V
voltage
8. 8 | MCS 3500 Modular Ceiling Loudspeaker System
Impedance 1666 ohm 833 ohm 416 ohm Environmental
Connector Screw-terminal Screw-terminal Screw-terminal Operating temperature -25 ºC to +55 ºC (-13 ºF to
+131 ºF)
* Technical performance data acc. to IEC 60268-5
Storage temperature -40 ºC to +70 ºC (-40 ºF to
Mechanical +158 ºF)
Product LBC 3510/40 LBC 3520/40 LBC 3530/40 Relative humidity <95%
Diameter 292 mm (11.5 292 mm (11.5 292 mm (11.5
in) in) in)
Ordering Information
Max depth 98 mm (3.9 in) 98 mm (3.9 in) 182.5 mm
(7.2 in) LBC 3510/40 Ceiling Loudspeaker unit
9/6 W
Mounting 255 mm 255 mm 255 mm
Order number LBC351040
cut-out (10.03 in) (10.03 in) (10.03 in)
LBC 3520/40 Ceiling Loudspeaker unit
Speaker 152.4 mm (6 152.4 mm (6 152.4 mm (6
diameter in) in) in) 18/12 W
Order number LBC3520/40
Magnet 117 g 245 g (8.6 oz) 450 g
weight (4.14 oz) (15.9 oz) LBC 3530/40 Ceiling Loudspeaker unit
36/24 W
Max ceiling 50 mm (1.97 50 mm (1.97 50 mm (1.97 Order number LBC3530/40
thickness in) in) in)
Accessories
Weight 1.2 kg (2.64 1.6 kg (3.52 2.6 kg (5.72
lb) lb) lb) LBC 3601/01 Circular Metal Grille
metal grille with a perforated pattern with quick
Color Black Black Black bayonet fitting for securing to the loudspeaker frame
Order number LBC 3601/01
LBC 3602/01 Circular ABS Grille
Product LBC 3601/01 LBC 3602/01 LBC 3603/01 self‑extinguishing ABS material with an attractive
Description Circular metal Circular ABS Circular wave perforation pattern with quick bayonet fitting for
grille grille guide (metal) securing to the loudspeaker frame
Order number LBC 3602/01
Diameter 300 mm 300 mm 300 mm
(11.8 in) (11.8 in) (11.8 in) LBC 3603/01 Circular Wave Guide Grille
ensures a wide and equal spread of the important
Max depth 12 mm (0.5 in) 22.5 mm(0.9 i 50 mm (2.0 in)
frequency octaves for speech intelligibility and music
n)
Order number LBC3603/01
Weight 310 g 165 g 440 g
(0.68 lb) (0.36 lb) (0.96 lb) LBC 3650/00 Metal Fire Dome
metal fire dome
Color White White White Order number LBC3650/00
(RAL 9010) (RAL 9010) (RAL 9010)
LBC 3660/01 Surface-Mounting Box
for securing the loudspeakers to walls or hard ceilings.
Order number LBC3660/01
Product LBC 3650/00* LBC 3660/01 LBC 3665/00
LBC 3665/00 Back Box
Description Steel fire dome Surface- Back box
mounting box secured onto the back of the loudspeaker frame.
Prevents sound traveling via the ceiling cavity to
Diameter 360 mm (14.2 300 mm (11.8 251 mm (9.9 adjacent areas, fully protects the loudspeaker from
in) in) in) dust.
Max depth 112 mm (4.4 117.3 mm 116 mm (4.5 Order number LBC3665/00
in) (4.6 in) in)
Weight 2 kg (4.4 lb) 830 g (1.93 550 g (1.21
lb) lb)
Color Black White (RAL Black
9010)
* F30 certified according to DIN 4102
