TOA Electronics F-2322C2, F-2352C2 User Manual

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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.

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

CAUTION

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

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 diffuser as a handle to carry the unit. If the diffuser breaks off, the unit falls off, resulting in possible personal injury. (F-2352C2 only)

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

CAUTION

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

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 lowand 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

[Front]

[Side]

 

/16)

 

ø230 (9 1

Front grille (accessory)

12 (15/32)

200 (7 7/8)

Mounting hole: ø200 (7 7/8)

[Ceiling mounting]

Tile bridge (accessory)

Unit: mm (inches)

[Rear]

Cord clamp

ø195 (7 43/64)

 

 

Safety wire hook

Removable input

 

 

 

 

 

 

connector

Safety wire (accessory)

 

Length: Approx. 600 (23 5/8")

 

29/64)

 

 

 

 

 

7/8)

 

 

 

 

Max. 37 (1

 

Max. 200 (7

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Ceiling tile

• F-2352C2

[Front]

[Side]

[Rear]

 

 

 

Cord clamp

 

 

1/16)

43/64)

 

 

ø230 (9

ø195 (7

 

 

41 (1 39/64)

 

 

Front grille (accessory)

229 (9 1/64)

Safety wire hook

Removable input

 

 

 

connector

[Ceiling mounting]

Tile bridge (accessory)

Safety wire (accessory)

Length: Approx. 600 (23 5/8")

Mounting hole: ø200 (7 7/8)

29/64)

 

 

 

7/8)

 

Max. 37 (1

 

Max. 200 (7

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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.

 

 

 

 

 

 

Use the supplied paper pattern to position

ø200 ±5 mm (77/8 ±13/64")

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 tile bridge in conjunction with the optional HY-TR1 Trim Ring.

Note

Refer to the instruction manual included with the HY-TR1 for the correct ceiling mounting procedure.

ø200 – ø300 mm (7 7/8" – 11 13/16")

Tile bridge (accessory)

T-grid

Ceiling tile

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

Ensure that this length is shorter than 53 mm (2 3/32").

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.

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.

Removable input connector

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]

Note

If not making bridge connections, be sure to tighten unused terminal screws to avoid their vibration.

From Amplifier

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)

Speaker cable

Cord clamp

Tighten the clamp fixing screws to

fix the speaker cable with the cord clamp.

Confirm the connector will not pull out.

 

Pull on the cable here to confirm that

 

speaker cable is securely fixed.

Removable input connector

Step 6. Mount the speaker.

Removable input connector

5-1

Cord clamp

5-2

Speaker unit

Caution

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.

6-1. Ceiling mounting (in the case of Step 2-1)

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).

In

Out

Mounting tab

Mounting hole

Speaker unit

WARNING

Never grab the F-2352C2's diffuser

 

section as a hand hold. The

 

speaker could fall due to damage,

Diffuser section

resulting in possible personal injury.

 

 

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.

Speaker unit

Mounting tab

Step 7. Set the input power.

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).

Electric screwdriver

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

Speaker unit

the grille to full stop in the direction indicated by the "LOCK" arrow.

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)

LOCK

 

Front grille (accessory)

Tab (3 places)

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.

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.

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.

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.

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.

1 Unlock

Front grille

2 Pull lightly.

Screw cap

Mounting tab

Mounting tab axis screw

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.

 

F-2322C2

 

 

F-2352C2

Enclosure

 

 

Bass reflex type

Rated Input

 

 

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)

Impedance

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)

 

 

 

 

16 Ω, 8 Ω

 

 

 

 

Sound Pressure Level

 

 

90 dB (1 W, 1 m)

Frequency Response

 

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

12 cm (5") cone-type

 

High frequency: Balanced dome-type

 

 

 

 

 

Low frequency: 12 cm (5") cone-type

Mounting Hole

 

ø200 mm (7 7/8")

 

 

 

 

Maximum ceiling thickness: 37 mm (1 29/64")

Input Terminal

 

Removable locking connector with screw-down terminals

 

 

(2 input terminals and 2 bridge terminals)

Usable Cable

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)

Finish

Enclosure: Steel plate, plating

 

 

 

Baffle:

Fire-resistant ABS resin (resin material grade: UL-94 V-0 or

 

 

its equivalent), black

 

 

 

Rim:

Fire-resistant ABS resin (resin material grade: UL-94 V-0 or

 

 

its equivalent), white, paint

 

Punched net: Steel plate, white, paint

Dimensions

ø230 mm (9 1/16") x Depth 200 mm (7 7/8")

 

ø230 mm (9 1/16") x Depth 229 mm (9 1/64")

Weight

 

4.3 kg (including mounting accessories)

 

 

 

 

 

 

Note: The design and specifications are subject to change without notice for improvement.

• Accessories

 

 

 

Front grille ............................................................

1

Safety wire (approx. 60 cm or 23 5/8") ..................

1

Tile bridge ............................................................

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