Toa H-1 Manuel utilisateur

OPERATING INSTRUCTIONS

SPEAKER SYSTEM H-1

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 PRECAUTIONS ............................................................................................... 2

2. GENERAL DESCRIPTION ............................................................................................ 3

3. FEATURES ......................................................................................................................... 3

4. NOMENCLATURE ............................................................................................................ 4

5. INSTALLATION

5.1. Direct Wall/Ceiling Mounting Without Using an Electrical Box ........................................ 5

5.2. Mounting the Speaker to an Electrical Box Using The Adapter Frame ........................... 8

5.3. Mounting the Speaker Directly to an Electrical Box ......................................................... 9

5.4. Removing the Trim Piece ................................................................................................ 9

6. REPAINTING THE GRILLE AND TRIM PIECE ..................................................... 10

7. PROTECTION CIRCUITRY INFORMATION .......................................................... 11

8. EQUALIZATION .............................................................................................................. 11

9. SPECIFICATIONS .......................................................................................................... 12

Accessories .......................................................................................................................... 12

1. SAFETY PRECAUTIONS

• Before installation or use, be sure to carefully read all the instructions in this section for correct and safe

operation.

• Be sure to follow all the precautionary instructions in this section, which contain important warnings and/or

cautions regarding safety.

• After reading, keep this 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.

• 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 unit falling down and causing personal injury

and/or property damage.

• Use nuts and bolts that are appropriate for the

ceiling's or wall's material and structure. Tighten

each nut and bolt securely. Ensure that the bracket

has no loose joints after installation to prevent

accidents that could result in personal injury.

• Since the unit is designed for in-door use, do not

install it outdoors. If installed outdoors, the aging of

parts causes the unit to fall off, resulting in

personal injury. Also, when it gets wet with rain,

there is a danger of electric shock.

• Do not apply lubricant and rust inhibitor. If it

contacts resin or rubber parts, they could

deteriorate and cause the unit to fall, possibly

resulting in personal injury.

• Avoid touching the unit's sharp metal edge to

prevent injury.

• 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 fire.

WARNING

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

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 featuring high input capacity 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 Ωor 16 Ωterminal 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. NOMENCLATURE

312

126

122 44

287.2

255.6 (10 1/10") (For mounting to an electrical box)

254 (10") (For mounting to an electrical box)

230.8 (For mounting the H-1 speaker) 10

55.6

(2 3/16")

66.7

(2 5/8")

H-1 speaker

Trim Piece

Grille

Detachable input connector

Connector for impedance selection

For mounting to the Adapter Panel

Mounting bracket

For mounting to an electrical box

255.6 (10 1/10")

254 (10")

55.6

(2 3/16")

66.7

(2 5/8")

230.8

Unit : mm

•Accessory (Adapter Panel)

[Side Panel] [Side Panel]

[Front Panel]

[Side Panel]

[Rear Panel]

5. INSTALLATION

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

Step 1. Adapter Panel 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.

287.2 (Adapter Panel)

122 (Adapter Panel)

268 (Mounting hole)

(Mounting hole)

Adapter Panel

Positioning tab

Board clamp

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 mm2

- 2.5 mm2) (Corresponding to AWG No.

24 - 14)

2-2. Remove 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.

About 5 mm

•When not bridging

connections

•When bridging

connections

From amplifier

To next

speaker

2-4. Attach two impedance selector sockets to the

connector to select the desired impedance. Preset to

830 Ω(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 Ω" impedance, since the

speaker itself or power amplifier may be damaged.

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).

Adapter Panel

H-1 speaker

•When selecting 4 Ω•When selecting 16 Ω•When selecting 830 Ω

(preset by the factory)

Impedance selector socket

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.

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.

5.2. Mounting the Speaker to an Electrical Box Using The Adapter Panel

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") x 66.7 mm (2 5/8") or

255.6 mm (10 1/10") x 55.6 mm (2 3/16")

45°

90゜

15゜

Stud screw

Angle adjustment screw

(A)

(B)

Electrical box

Adapter Panel

Trim Piece Stud screw

Securing clip

H-1 speaker

Memo

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

5.3. Mounting the Speaker Directly to an Electrical 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 5/8") or

255.6 mm (10 1/10") x 55.6 mm (2 3/16")

(A)

(B)

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

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

45 mm or more

5.4. 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.

H-1 speaker

Electrical box

Memo

Electrical box mounting screws are

attached to the H-1 speaker.

6. REPAINTING THE GRILLE AND TRIM PIECE

Follow the procedures below to change the color of the

grille.

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

piece).

2. Detach either of the two mounting brackets attached to

the speaker.

3. Remove 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: Rolled 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.

Grille

Grille mounting screw

Mounting bracket

Angle adjustment screw

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