TOA Electronics F-2852C User Manual
INSTRUCTION MANUAL
CEILING SPEAKER SYSTEM F-2852C
1. SAFETY PRECAUTIONS .......................... 2
2. GENERAL DESCRIPTION ........................ 3
3. FEATURES ................................................ 3
4. NOMENCLATURE AND DIMENSIONS .... 4
5. INSTALLATION ......................................... 5
6. REMOVING THE SPEAKER
FOR MAINTENANCE ................................. 9
7. REPAINTING THE SPEAKER .................. 10
8. ABOUT THE INPUT OVERLOAD
PROTECTION CIRCUITRY ...................... 10
9. SPECIFICATIONS .................................... 11
Accessories ............................................... 11
Optional Components ................................ 11
Please follow the instructions in this manual to obtain the optimum results from this unit.
We also recommend that you keep this manual handy for future reference.
TABLE OF CONTENTS
• Leave the installation to your TOA dealer because
the installation requires expert knowledge.
Improper installation may cause the unit to fall,
resulting in personal injury and/or property
damage.
• Install the unit in a location that can structurally
support the weight of the unit and its mounting
hardware. Doing otherwise may result in the unit
falling down and causing personal injury and/or
property damage.
• Do not use other methods than specified to mount
the unit. Extreme force is applied to the unit and
the unit could fall off, possibly resulting in personal
injuries.
• Attach the safety wire to the unit. If not attached,
the unit could fall off, resulting in personal injury.
• Tighten each screw securely. Ensure that the unit
has no loose joints after installation to prevent
accidents that could result in personal injury.
• Do not hold the tweeter as a handle to carry the
unit. If the tweeter breaks off, the unit falls off,
resulting in possible personal injury.
• Use the specified mounting hardware in
combination. Doing otherwise may cause the unit
or component to fall off, resulting in personal injury.
• Should the following irregularity be found during
use, immediately stop operating the unit and
contact your nearest TOA dealer. Further attempt
to use under this condition may cause fire or
electric shock.
· If you detect smoke or a strange smell coming
from the unit
· If no tone sounds
• Avoid installing the unit in humid or dusty locations,
in locations exposed to the direct sunlight, near the
heaters, or in locations generating sooty smoke or
steam as doing otherwise may result in fire or
electric shock.
• Do not operate the unit for an extended period of
time with the sound distorting. This is an indication
of a malfunction, which in turn can cause heat to
generate and result in a fire.
• Avoid touching the unit's sharp metal edge to
prevent injury.
2
CAUTION
1. SAFETY PRECAUTIONS
• Be sure to read the instructions in this section carefully before use.
• Make sure to observe the instructions in this manual as the conventions of safety symbols and messages
regarded as very important precautions are included.
• We also recommend you keep this instruction manual handy for future reference.
Safety Symbol and Message Conventions
Safety symbols and messages described below are used in this manual to prevent bodily injury and property
damage which could result from mishandling. Before operating your product, read this manual first and
understand the safety symbols and messages so you are thoroughly aware of the potential safety hazards.
WARNING
Indicates a potentially hazardous situation which, if mishandled, could
result in death or serious personal injury.
Indicates a potentially hazardous situation which, if mishandled, could
result in moderate or minor personal injury, and/or property damage.
WARNING
CAUTION
3
2. GENERAL DESCRIPTION
The F-2852C is a 2-way, flush-mounted ceiling speaker that offers a wide frequency range and high-quality
sound output.
Use of its supplied and optional mounting hardware permits versatile mounting to match a wide range of
applications and installation locations.
3. FEATURES
• Two-way, bass-reflex speaker system designed to provide a wide frequency range and high power handling
capability.
• Ideal for locations that have high ceilings or require true-to-life sounds.
• Uniform sound output levels are achievable not only in the position directly under the speaker, but also over
a wide radius. (Coverage angle is approximately 110°.)
• Because the speaker is provided with both low- and high-impedance operating capability, it can be used in
many different applications. Front panel-mounted input selector switch permits easy verification and change
of current impedance settings, even after installation.
• Easy installation. Can be quickly and accurately mounted to ceilings and walls.
• Rotating front grille can be installed quickly and conveniently.
• Attractive exterior design specially created by an interior designer blends naturally with any architectural
space, enhancing the immediate area's sense of harmony.
• Optional mounting hardware permits installation in weak ceiling panels.
4
4. NOMENCLATURE AND DIMENSIONS
Unit: mm (inches)
[Front]
Front grille (accessory)
[Rear]
[Side]
/32)
1
ø280 (11
38 (1 1/2)
227 (8
/64)
41
ø245 (9
/8)
5
15
/16)
Approx. 600 (23
Safety wire (accessory)
[Ceiling mounting]
Ceiling reinforcement ring
(accessory)
Detachable input connectorSafety wire hook
Mounting hole: ø250 (9
27
/32)
/64)
/8)
7
29
Max. 37 (1
Max. 200 (7
Ceiling panel
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