Toa H-2 Manual de usuario

OPERATING INSTRUCTIONS

H-2

H-2WP

SPEAKER SYSTEM

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.

TOA Corporation

TABLE OF CONTENTS

1. SAFETY PRECAUTIONS

2. GENERAL DESCRIPTION

3. FEATURES

4. HANDLING PRECAUTIONS

. NOMENCLATURE

6. INSTALLATION

6.1. Direct Wall/Ceiling Mounting

6.2. Mounting the Speaker using an Electrical Box

6.3. Mounting the Speaker using Supporting Rails

6.4. Removing the Front Grille

7. OUTDOOR USE (H-2WP ONLY)

7.1. Waterproofing

7.2. Speaker Mounting Angle

8. REPAINTING THE GRILLE AND TRIM PIECE

9. PROTECTION CIRCUITRY INFORMATION

10. EQUALIZATION

11. SPECIFICATIONS

Accessories

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 Sym ol 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 so you are

thoroughly aware of the potential safety hazards as well as understand the safety symbols and messages.

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

WARNING

CAUTION

When Installing the Unit

• Install the unit only in a location that can

structurally support the weight of the unit and the

mounting bracket. Doing otherwise may result in

the speaker falling down and causing personal

injury and/or property damage.

When the Unit is in Use

• Do not operate the speaker 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.

When the Unit is in Use

• Should the following irregularity be found during

use, immediately stop operating the unit and

contact your nearest TOA dealer. Make no further

attempt to operate the unit in this condition as this

may cause fire or electric shock.

• If you detect smoke or a strange smell coming

from the unit.

• If water or any metallic object gets into the unit

• If it is malfunctioning (no tone sounds.)

2. GENERAL DESCRIPTION

TOA's H-2 and H-2WP are small, dome-shaped 2-way speakers featuring high sound quality. The H-2 is

designed for indoor use, and the H-2WP is designed for outdoor use.

Note: Protect the H-2WP from rain when installing. (Refer to P. 10 "7.1. Waterproofing".)

3. FEATURES

• The speaker's smooth curved surface allows it to blend in with the interiors of most modern buildings.

• The speaker's small (10 cm) woofer features a magnetic circuit (employing a neodymium magnet) that

ensures powerful low-frequency sound reproduction.

• The one-inch balanced dome tweeter features ferro-fluid to ensure superb transient response characteristics

for clear, high frequency sound output and high power-handling capabilities.

• The speaker's built-in, crossover network circuitry features sharp cut-off characteristics that realize uniform

energy radiation while suppressing unwanted input signals to the woofer or tweeter.

• The speaker is designed with an emphasis on installation ease and safety, as well as easier conduit wiring

when an electrical box is installed.

• The speaker's round mounting base frame allows the speaker to be installed at any mounting angle.

Note: When mounting the H-2WP speaker to a wall, to ensure its watertightness it must not be tilted any

more than 4 degrees up from its downward-facing position.

• A built-in matching transformer permits the speaker to be used for both high- and low-impedance

applications. For low-impedance applications, either the 4 or 16 terminal can be selected. Impedance

can be easily changed from outside the unit.

• Detachable screw terminals facilitate connection. Dual positive and negative terminals also facilitate bridge

connections.

• The H-2's enclosure and front grille are made of fire-resistant ABS (UL Standard 94: V-0 Grade).

• The structure of the speaker's front grille is specially designed for ease of refinishing and repainting.

4. HANDLING PRECAUTIONS

• Avoid using the speaker on the beach because the speaker's life can be greatly shortened by sea breezes.

• The speakers are not magnetically shielded. Install them as far away as possible from television sets or

computer's CRTs to avoid degradation in picture quality.

5. NOMENCLATURE

[Front Panel]

[Side Panel]

Unit: mm

Front grille (grille frame)

Front grille (Grille)

[Side Panel]

Anti-slip piece

Accessory (Base frame)

[Rear Panel]

Aiming marker

Lock tab

[Installation Example]

Detachable input connector

Connector for impedance selection

(For mounting to

an electrical box)

6. INSTALLATION

6.1. Direct Wall/Ceiling Mounting

Step 1. Base frame mounting

1-1. Pull the cables out of the wall or ceiling through the

hole in the center of the base frame, then strip the

insulation back about mm from the cable ends.

Tip

• Usable cable: Solid cable or stranded cable (0.2

- 2. mm

) (Corresponding to

AWG No. 24-14)

• The base frame hole can also be used for 1/2

EMT conduit fitting.

1-2. Secure the base frame to the wall or ceiling panel

with screws at four places shown on the right.

Notes

• Use nuts and bolts (not supplied with the unit) that

are appropriate for the structure and composition of

the wall or ceiling.

• Protect the H-2WP from rain when installing. (Refer

to P. 10 "7.1. Waterproofing".)

Step 2. Wiring and impedance changes

2-1. Unplug the detachable input connector from the

speaker socket, and with a small slot screwdriver,

loosen the screws of the terminals to use.

1/2" EMT conduit fitting

Base frame

About mm

2-2. Insert the stripped cable ends into the input

connector, and tighten the connector screws.

Note

When not bridging connections, be sure to also

tighten the screws of the terminals not in use to avoid

vibration or rattle noises.

• When not bridging

connections

• When bridging

connections

To next

speaker

From amplifier

2-3. Attach two impedance selector sockets to the 16-pin

connector to select the desired impedance. (Preset to

12 W for 100 V line and 6 W for 70 V line.)

Note

The speakers are designed to be used for both 70 V

and 100 V line applications. When using the 100 V

line, do not select the "420 " impedance, since the

speaker itself or power amplifier may be damaged.

• When selecting 830

(preset by the factory)

• When selecting 4

• When selecting 16

Impedance selector socket

2-4. Insert the detachable input connector into the

speaker socket.

Step 3. Speaker and grille mounting

3-1. Rotate the three speaker lock tabs away from their

locking position on the edge of speaker.

3-2. After aligning the speaker with the base frame, rotate

the three lock tabs back into position to clamp the

speaker to the base frame. (Temporary fixing state.)

Note

When mounting the speaker, do not touch its paper

cone, as permanent damage to the speaker may

result.

3-3. Position the speaker and tighten the three locking

screws.

Lock tab

Base frame

Speaker system

Locking screw

Stud screw

3-4. Set the front grille's aiming marker to the speaker

front (i.e. speaker orientation) so that the three stud

screws align with the corresponding stud receptacles,

then push the grille onto the speaker.

Speaker front

Stud screw

Aiming marker

Stud receptacle

6.2. Mounting the Speaker using a Electrical Box

The speaker system can be mounted to walls or ceilings using a electrical box*. Mount the base frame to the

electrical box using two holes shown in the figure below. Further mounting procedures are the same as

detailed in Steps 2 and 3.

* Distance between mounting holes: 69.9 mm (2 ¾), 83.3 mm (3 9/32) or 88.9 mm (3 ½ )

• Mounting example 1

Base frame

• Mounting example 2

Memo

Electrical box mounting screws are attached to the speaker.

6.3. Mounting the Speaker using Supporting Rails

The speaker system can also be mounted to walls or ceilings using supporting rails. Mount the base frame to

the rails using four holes shown in the figure below. Follow Steps 2 and 3.

6.4. Removing the Front Grille

Be sure to use the front grille's three anti-slip pieces when

detaching the grille from the speaker. First carefully pull

the grille by hand from two positions, and then detach from

the one remaining position.

Caution

If you raise only one or two of the three anti-slip pieces,

the front grille may be broken. Be sure to pull its three

pieces out evenly and gradually.

Anti-slip piece

7. OUTDOOR USE (H-2WP ONLY)

7.1. Waterproofing

The H-2WP's base frame has a gasket for watertightness.

To completely prevent water from getting into a gap

between the base frame and wall or ceiling panel, apply

caulking agent over the inside of the gasket before

mounting the base frame.

7.2. Speaker Mounting Angle

When mounting the H-2WP speaker on a wall, to ensure

its watertightness it must not be tilted any more than 4

degrees up from its downward-facing position.

Notes

• The H-2WP features drip-proof construction. However,

do not dash water over it when cleaning as this may

cause damage to the speaker components.

• When installing the H-2WP outdoors in a snowy area,

protect the speaker so that it is not covered with snow.

Gasket

Caulking agent

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