INSTRUCTION MANUAL
CEILING SPEAKER SYSTEMS
F-2322C2
F-2352C2
F-2322C2
F-2352C2
TABLE OF CONTENTS
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 ...................................................... 11
7. REPAINTING THE SPEAKER ........................................ 11
8. ABOUT THE INPUT OVERLOAD
PROTECTION CIRCUITRY ............................................. 12
9. SPECIFICATIONS ........................................................... 12
Accessories ..................................................................... 12
Optional Components ...................................................... 12
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.
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2. GENERAL DESCRIPTION
The F-2322C2 and F-2352C2 are flush-mounted Ceiling Speaker Systems that offer wide frequency range
and high-quality sound output.
The F-2322C2 employs a full-range speaker element, while the F-2352C2 features a 2-way speaker
configuration.
Both speaker systems are designed to be mounted to a drop ceiling or to be hung from a ceiling depending on
applications and installation locations.
3. FEATURES
• Bass-reflex speaker system designed to provide a wide frequency range and high power handling capability.
• Wide-dispersion flush-mount ceiling speaker design employs unique acoustic construction to realize a wide
area of coverage. Uniform sound output levels are achievable not only directly under the speaker, but also
over a wide radius.
• 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.
3
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4. NOMENCLATURE AND DIMENSIONS
• F-2322C2
Unit: mm (inches)
[Front]
[Side]
[Rear]
Cord clamp
15
12 ( /32)
7
Front grille (accessory)
Safety wire hook
Safety wire (accessory)
Removable input
connector
200 (7 /8)
5
Length: Approx. 600 (23 /8")
7
Mounting hole: ø200 (7 /8
)
[Ceiling mounting]
Tile bridge
(accessory)
Ceiling tile
• F-2352C2
[Front]
[Side]
[Rear]
Cord clamp
39
41 (1 /64)
1
229 (9 /64)
Front grille (accessory)
Safety wire hook
Safety wire (accessory)
Removable input
connector
5
Length: Approx. 600 (23 /8")
7
Mounting hole: ø200 (7 /8
)
[Ceiling mounting]
Tile bridge
(accessory)
Ceiling tile
4
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5. INSTALLATION
When mounting the speaker to a ceiling, check in advance that the ceiling structure is of drop ceiling with
2-foot standard ceiling tiles.
The F-2322C2 and F-2352C2 can be mounted in 2 different configurations:
• Mounting to a drop ceiling
Use the supplied tile bridge.
If the mounting hole is larger than the specified diameter, use the optional HY-TR1 Trim Ring together
with the supplied tile bridge.
• Hanging from a ceiling suspension pipe (exposed installation)
Use the optional HY-BC1 Back Can.
Step 1. Cut a ø200 mm (7 7/8") hole in the ceiling.
7
13
ø200 5 mm (7 /8
/64")
Use the supplied paper pattern to position
and trace the hole.
Ceiling tile
Step 2. Mount fittings to a ceiling or hanging pipe.
2-1. Mounting to a drop ceiling
Caution
Set the tile bridge so that both ends fit securely into the T-grids, even if the ceiling tile accidentally
falls off.
Tile bridge (accessory)
T-grid
Ceiling tile
Tile bridge (accessory)
2-foot tile
Place the supplied tile bridge on the 2-foot
tile as shown at right.
T-grid
5
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[If the mounting hole is larger that the specified diameter]
Use the supplied
in conjunction with the optional HY-TR1 Trim Ring.
tile bridge
Note
Refer to the instruction manual included with the HY-TR1 for the correct ceiling mounting procedure.
ø200 – ø300 mm
7
13
(7 /8" – 11 /16")
Tile bridge (accessory)
Ceiling tile
T-grid
HY-TR1
(optional)
Speaker unit
2-2. Hanging from a ceiling suspension pipe (exposed installation)
Use the optional HY-BC1 Back Can.
Notes
• The supplied tile bridge is not used.
• Refer to the instruction manual included with the HY-BC1 for Back Can installation.
[Example of mounting to suspension pipe]
Suspension pipe
Caution
3
Ensure that this length is shorter than 53 mm (2 /32").
Speaker cable
HY-BC1 (optional)
6
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Step 3. Attach a safety wire to prevent the speaker from accidentally falling.
To attach, tie one end of the supplied safety wire around the speaker's safety wire hook, and tie its
snap ring around a secure C-channel bar or suspension pipe.
[Mounting to a drop ceiling]
Safety wire (accessory)
Secure C-channel bar or
suspension pipe
Tile bridge (accessory)
2-foot tile
T-grid
Ceiling tile
Safety wire hook
Safety wire (accessory)
Speaker unit
7
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[Hanging from a ceiling suspension pipe]
Suspension pipe
HY-BC1
(optional)
Safety wire
(accessory)
Speaker unit
Safety wire hook
Step 4. Connect the speaker cable to the removable input connector.
Removable input
connector
Tip
The following matching cable types are recommended:
• Solid copper wire:
ø0.5 – ø1.6 mm (equivalent to AWG 24 – 14)
• Stranded copper wire: 0.2 – 2.5 mm2 (equivalent to AWG 24 – 14)
4-1. Detach the removable input connector from the
speaker's wiring socket, and loosen the screw of the
terminal to be used.
Speaker unit
4-2. Insert the stripped cable end into the terminal and tighten the terminal screw with a screwdriver.
[If not bridging] [If bridging]
From Amplifier
Note
If not making bridge connections,
be sure to tighten unused terminal
screws to avoid their vibration.
5 mm
(13/64")
To the
next speaker
8
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Step 5. Make speaker cable connection.
5-1. Plug the wired removable input connector into the speaker's wiring socket.
5-2. Fix the speaker cable with the cord clamp.
Loosen the cord clamp fixing screws and open the cord clamp.
Then, pass the speaker cable between both screws.
Clamp fixing screw (2 pieces)
Removable input
connector
Speaker cable
Cord clamp
5-1
Cord clamp
Tighten the clamp fixing screws to
fix the speaker cable with the cord clamp.
5-2
Confirm the connector will not pull out.
Pull on the cable here to confirm that
speaker cable is securely fixed.
Removable input connector
Speaker unit
Step 6. Mount the speaker.
In
Caution
Out
Before mounting, check to be sure that the speaker's
3 mounting tabs are turned inside the unit as shown in the figure.
If turned outward, the speaker cannot be inserted through the
mounting hole.
Mounting
tab
6-1. Ceiling mounting (in the case of Step 2-1)
Mounting hole
Speaker unit
Insert the speaker through the mounting hole till it contacts
the ceiling panel. While doing so, avoid directly touching
the speaker element and diffuser section (F-2352C2 only).
WARNING
Never grab the F-2352C2's diffuser
section as a hand hold. The
speaker could fall due to damage,
resulting in possible personal injury.
Diffuser section
Diffuser section
Mounting tab
Rotate and tighten the mounting tab axis
screws (3 places) on the unit clockwise to their
full stop in order to grip the ceiling panel with
the mounting tabs.
Mounting tab axis screw
Use an electric screwdriver to tighten.
(Tightening torque: 6 – 10 kgf·cm)
9
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6-2. Hanging from a ceiling (in the case of Step 2-2)
Follow Step 6-1 to mount.
HY-BC1 Back Can attached
to suspension pipe
(optional)
Caution
Take care not to pinch the
speaker cable and safety wire
(supplied with the speaker).
Speaker unit
Mounting tab
Electric screwdriver
Step 7. Set the input power.
Turn the input selector switch (on the unit's front) to set it to the desired input impedance using a
slotted screwdriver.
Note: The switch is factory-preset to 330 Ω.
Input selector switch
Speaker's front
Slotted screwdriver
Important
Never set this switch to low impedance (8 Ω or 16 Ω) when using a high impedance 25, 70, or 100 V
line. Failure to follow this instruction could result in damage to the speaker or amplifier.
Step 8. Attach the front grille.
Align the tabs (3 places) on the back side of the grille
with the corresponding notches in the unit, then rotate
the grille to full stop in the direction indicated by the
"LOCK" arrow.
Speaker unit
Tip
The front grille employs a double-locking system that
clicks into place once partway through rotation, but
only locks into position at its point of full rotation.
Always be sure to rotate the grille to its full stop.
Notch (3 places)
Tab (3 places)
LOCK
Front grille (accessory)
10
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6. REMOVING THE SPEAKER FOR MAINTENANCE
6.1. Detaching the Front Grille
Turn the front grille counterclockwise to full stop, then lightly
pull it downward.
1 Unlock
Tip
The front grille employs a double-locking system.
If the grille cannot be detached when lightly pulled downward,
it likely has not yet been fully rotated back to the detachment
position. In such cases, take care to rotate the grill fully
counterclockwise in order to release the lock.
Front grille
Pull lightly.
2
6.2. Removing the Speaker
Rotate the 3 mounting tab axis screws
counterclockwise. The mounting tabs rise as
they turn, allowing the speaker to be
removed.
Screw cap
Mounting tab
Cautions
• When loosening the mounting tab axis
screws, support the speaker by hand to
prevent it from falling.
• Be sure to set the screwdriver's torque for
under 4 kgf·cm.
Mounting tab axis screw
Failure to do so may cause the Screw cap
and the Mounting tab to fall off on the rear of
ceiling panel.
Use an electric screwdriver to detach.
7. REPAINTING THE SPEAKER
Follow the procedure below when repainting the front grille:
Step 1. Clean the front grille before painting.
Wipe with a soft cloth dampened in a detergent.
Caution
Do not use thinner or other volatile liquids to clean the grille.
Step 2. Spray on a uniform, thin coat of paint.
Cautions
• Avoid painting with a roller or brush, as the grille mesh holes could become clogged with paint.
• Use appropriate spray paints for the front grille (grille and frame) materials.
Grille: Rolled steel plate
Frame: Fire-resistant ABS resin (acrylic paint)
• Be sure to follow the directions indicated on the paint when painting.
Step 3. After the paint has dried, apply another light coat.
Caution
Repeating Step 2, apply two or more light coats of paint.
Application of one thick coat of paint all at once may cause drips or unevenness to show up in the
painted finish, or clog the mesh holes.
11
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8. ABOUT THE INPUT OVERLOAD PROTECTION CIRCUITRY
Both the F-2322C2 and the F-2352C2 feature internal input overload protection circuitry. If an extremely high
input level is fed to the unit, the protection circuitry automatically cuts off the signal to the speaker element.
A drastic reduction in sound volume indicates that the protection circuitry has been enabled.
In such cases, simply reduce the amplifier volume. The protection circuitry will automatically reset in
approximately 10 seconds. After reset, try to maintain the volume at a level slightly lower than before.
Caution
This protection circuitry does not completely protect the unit against extremely high input power levels.
Depending on the type or duration of excessive power input, the protection circuitry might not be enabled,
resulting in damage to the speaker element. Also, if the excessive power input continues for a long period of
time, the circuitry may not be capable of resetting to its original condition.
Use the system with care so that the speakers are not exposed to excessive power input.
9. SPECIFICATIONS
Model No.
Enclosure
Rated Input
F-2322C2
F-2352C2
Bass reflex type
30 W (High Impedance)
Power Handling Capacity
Continuous pink noise: 60 W (8 Ω), 30 W (16 Ω)
Continuous program: 120 W (8 Ω), 60 W (16 Ω)
100 V line: 330 Ω (30 W), 1 kΩ (10 W), 3.3 kΩ (3 W), 10 kΩ (1 W)
70 V line: 170 Ω (30 W), 330 Ω (15 W), 1 kΩ (5 W), 3.3 kΩ (1.5 W), 10 kΩ (0.5 W)
25 V line: 170 Ω (3.7 W), 330 Ω (1.9 W), 1 kΩ (0.6 W), 3.3 kΩ (0.2 W),
10 kΩ (0.06 W)
Impedance
16 Ω, 8 Ω
Sound Pressure Level
Frequency Response
90 dB (1 W, 1 m)
70 – 20,000 Hz (–10 dB), 50 – 20,000 Hz (–20 dB)
at installation in 1/2 free sound field
(Measured by installing the unit in the center of a ceiling.)
Speaker Component
Mounting Hole
Input Terminal
Usable Cable
Finish
12 cm (5") cone-type
High frequency: Balanced dome-type
Low frequency: 12 cm (5") cone-type
ø200 mm (7 7/8")
Maximum ceiling thickness: 37 mm (1 29/64")
Removable locking connector with screw-down terminals
(2 input terminals and 2 bridge terminals)
Solid copper wire:
ø0.5 – ø1.6 mm (equivalent to AWG 24 – 14)
Stranded copper wire: 0.2 – 2.5 mm2 (equivalent to AWG 24 – 14)
Enclosure:
Steel plate, plating
Fire-resistant ABS resin (resin material grade: UL-94 V-0 or
its equivalent), black
Baffle:
Rim:
Fire-resistant ABS resin (resin material grade: UL-94 V-0 or
its equivalent), white, paint
Punched net: Steel plate, white, paint
ø230 mm (9 1/16") x Depth 200 mm (7 7/8")
Dimensions
Weight
ø230 mm (9 1/16") x Depth 229 mm (9 1/64")
4.3 kg (including mounting accessories)
Note: The design and specifications are subject to change without notice for improvement.
• Accessories
Front grille ............................................................ 1
Tile bridge ............................................................ 1
Safety wire (approx. 60 cm or 23 5/8") .................. 1
Paper pattern ....................................................... 1
• Optional Components
HY-TR1 (Trim Ring): Use this ring when mounting the speaker in pre-existing holes that are larger than the
designated 200 mm (7 7/8") in diameter.
HY-BC1 (Back Can): Use this Back Can when mounting the speaker unit in exposed hanging applications.
533-06-142-00
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