TOA Electronics Speaker F 2322C2 User Manual

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.  
 
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
 
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
 
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
 
[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
 
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
 
[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
 
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
 
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  
 
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  
 
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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