Toa H-1 Manuel utilisateur

OPERATING INSTRUCTIONS

H-1

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.

TABLE OF CONTENTS

1. SAFETY P ECAUTIONS

2. GENE AL DESC IPTION

3. FEATU ES

4. HANDLING P ECAUTIONS

5. NOMENCLATU E

6. INSTALLATION

6.1. Direct Wall/Ceiling Mounting Without Using an Electrical Box

6.2. Mounting the Speaker to an Electrical Box Using The Adapter Frame

6.3. Mounting the Speaker Directly to an Electrical Box

6.4. emoving the Trim Piece

7. EPAINTING THE G ILLE AND T IM PIECE

8. P OTECTION CI CUIT Y INFO MATION

9. EQUALIZATION

10. SPECIFICATIONS

Accessories

TOA Corporation

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 Symbo 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 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 Insta ing 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

• 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-1 is a cylinder-shaped, small flush-mount 2-way speaker featuring high sound quality.

3. FEATURES

• The H-1 Speaker System features, flush-mount speaker design with a rotatable cylinder-type enclosure. The

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

• The speaker's small ( 8 x 5 cm) woofer features a magnetic circuit (employing a neodymium magnet) that

ensures powerful 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 H-1 Speaker System is designed with an emphasis on installation ease and safety, as well as easier

conduit wiring when an electrical box is installed.

• The cylinder-shaped speaker's mounting angle can be easily adjusted for up to ± 45 degrees rotation.

• 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.

• Both the speaker enclosure and Trim Piece are made of fire-resistant ABS (UL Standard 94: V-0 Grade).

• All external parts have been specially selected for ease of refinishing and repainting.

4. HANDLING PRECAUTIONS

The speaker is not magnetically shielded. Install it as far away as possible from television sets or computer's

C Ts to avoid degradation in picture quality.

5. NOMENCLATURE

[Side Pane ]

[Front Pane ]

[Side Pane ]

H-1 speaker

Grille

Trim Piece

[Side Pane ]

[Rear Pane ]

For mounting to the Adapter Panel

Mounting bracket

For mounting to an electrical box

Accessory (Adapter Pane )

6. INSTALLATION

6.1. Direct Wa /Cei ing Mounting Without Using an E ectrica Box

Step 1. Adapter Pane mounting

1-1. Using the supplied hole pattern sheet as a guide,

make an opening of the specified size in the wall or

ceiling panel.

Note

The thickness of the suitable wall or ceiling panel is 9

to 30 mm.

1-2. Loosen the two board clamp screws.

1-3. Place the Adapter Panel inside the opening, and set

the panel to the desired position using the positioning

tabs.

Board clamp

Adapter Panel

Positioning tab

1-4. Clamp the wall or ceiling panel using the two board

clamps, and secure with the clamp screws.

Step 2. Wiring and impedance changes

2-1. Pull the cables out of the mounting hole in the wall or

ceiling, then strip the insulation back about 5mm from

the cable ends.

Note

Usable cable: Solid cable or stranded cable (0.2 mm

- 2.5 mm

) (Corresponding to AWG No.

24-14)

2-2. emove the detachable input connector from the

speaker, then loosen the connector screws with a

small slot screwdriver.

2-3. 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 rattling noise.

• When not bridging

connections

• When bridging

connections

From amplifier

About 5 mm

To next

speaker

2-4. Attach two impedance selector sockets to the

connector to select the desired impedance. Preset to

830 (12 W for 100 V line and 6 W for 70 V line).

Note

The speaker is 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 4

• When selecting 16

Impedance selector socket

2-5. Insert the detachable input connector into the

speaker socket.

Step 3. Mounting the speaker and Trim Piece

3-1. Align the four inward-facing holes in the speaker's

mounting bracket with the corresponding holes in the

Adapter Panel mounting tabs, then mount the

speaker to the panel using the four supplied screws

(M4 x 25 screws with both the spring washers and

plain washers).

H-1 speaker

Adapter Panel

• When selecting 830

(preset by the factory)

Stud screw

3-2. Loosen the angle adjustment screws. After adjusting

the angle, retighten the screws.

Tip

The mounting angle can be adjusted for up to ± 45 °.

Since the mounting bracket is marked with mounting

angles at 15 ° intervals, use this marking as a guide

when adjusting the angle.

Angle adjustment screw

3-3. Align the two securing clips on the Trim Piece with

the speaker's two stud screws, then push the Trim

Piece onto the speaker until the Trim Piece is snug to

the wall or ceiling surface.

Securing clip

Trim Piece

Stud screw

H-1 speaker

6.2. Mounting the Speaker to an E ectrica Box Using The Adapter Pane

The H-1 speaker system can be mounted to walls or ceilings using an electrical box*. Mount the Adapter

Panel to the electrical box as shown below. Further mounting procedures are the same as detailed in Steps 2

and 3.

Distance between mounting holes (A) x (B):

254 mm

(10")

66.7

mm (2

") or

255.6 mm (10

") x 55.6 mm (2

Memo

Electrical box mounting screws are attached to the H-1 speaker.

H-1 speaker

Electrical box

Adapter Panel

6.3. Mounting the Speaker Direct y to an E ectrica Box

The H1 speaker system can also be mounted directly to an electrical box*. Follow Steps 2 and 3 for

instructions. In this case, use the outward-facing holes in the mounting bracket when mounting to the wall or

ceiling.

* Distance between mounting holes (A) x (B): 254 mm (10") x 66.7 mm (2

") or

255.6 mm (10

") x 55.6 mm (2

Memo

Electrical box mounting screws are

attached to the H-1 speaker.

Electrical box

H-1 speaker

Note: The distance between the wall or ceiling surface and the box bottom surface must be 45 mm or more.

When using the aco 953 electrical box, be careful in installation because it is shallow.

6.4. Removing the Trim Piece

When removing the Trim Piece for maintenance or repair,

squeeze its sides by hand to create a gap between the

Trim Piece and wall/ceiling, then insert a screwdriver blade

into the gap and pry off the piece.

Caution

If you raise either right or left side of the Trim Piece by

force, it may be broken. Pull the both sides out evenly and

gradually.

Grille

7. REPAINTING THE GRILLE AND TRIM PIECE

Follow the procedures below to change the color of the

grille.

1. emove the speaker's angle adjustment screw (1

piece).

2. Detach either of the two mounting brackets attached to

the speaker.

Mounting bracket

Angle adjustment screw

Grille mounting screw

3. emove the two grille mounting screws from the back of

the speaker.

4. Slide the grille off the speaker.

5. Paint both the grille and Trim Piece.

5-1. Wipe dirt off the grille and Trim Piece with a soft cloth

moistened with a detergent before painting. Do not

use volatile liquids such as thinner.

5-2. Uniformly spray a thin coating of paint over the grille

and Trim Piece changing the spraying positions

gradually.

Notes

• Do not use a roller or brush to paint because the

meshes of the grille could be clogged with paint.

• Use paint that is appropriate for the composition of

the grille and Trim Piece.

Grille: olled steel plate

Trim Piece: Fire-resistant ABS resin

• Follow the instructions on the paint when painting.

5-3. After the paint dries, repeat Step 5-2 once or twice to

repaint.

Notes

• Be sure to repeat Step 5-2 at least twice.

• When repainting the front grille, place the grille

upside down so that the surface is painted

uniformly.

6. After the paint has dried, remount the grille to the

speaker.

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