Toa H-2 Bedienungsanleitung

OPERATING INSTRUCTIONS

SPEAKER SYSTEMS

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.

H-2

H-2WP

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 ................................................................................. 5

5.2. Mounting the Speaker Using an Electrical Box ..................................................... 8

5.3. Mounting the Speaker Using Supporting Rails ..................................................... 8

5.4. Removing the Front Grille ..................................................................................... 8

6. OUTDOOR USE (H-2WP ONLY)

6.1. Waterproofing ....................................................................................................... 9

6.2. Speaker Mounting Angle ....................................................................................... 9

7. REPAINTING THE GRILLE ................................................................................. 9

8. PROTECTION CIRCUITRY INFORMATION ............................................... 10

9. EQUALIZATION .................................................................................................... 10

10. SPECIFICATIONS ................................................................................................ 11

Accessories ................................................................................................................ 11

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.

• (Applicable to H-2 only)

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.

• (Applicable to H-2WP only)

Avoid installing the unit in locations close to the

seashore, or in indoor swimming pools or

bathrooms. In such locations, the bracket may be

vulnerable to corrosion, eventually allowing the

unit to fall 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-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. 9 "6.1. Waterproofing".)

3. FEATURES

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

• A 10 cm woofer featuring high input capacity produces powerful low frequency sound despite its small size.

• 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 45 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 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.

• 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.

111

φ268

Front grille (grille frame)

Anti-slip piece

Aiming marker

Lock tab

Detachable input connector

Connector for impedance selection

Front grille (Grille)

5.6

76.4 (3")

φ21.6

φ181

69.9

(2 3/4")

88.9 (3 1/2")

(For mounting to

an electrical box)

(For mounting to

a wall, ceiling or

supporting rail)

(For mounting to

an electrical box)

83.3 (3 9/32")

(For mounting

to an electrical

box)

4. NOMENCLATURE

•Accessory (Base frame)

[Front Panel] [Side Panel]

[Side Panel]

[Rear Panel]

[Installation Example]

Unit: mm

5. INSTALLATION

5.1. 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 5mm from the cable ends.

Tip

• Usable cable: Solid cable or stranded cable (0.2 mm2-

2.5 mm2) (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. 9 "6.1. 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.

About 5 mm

Base frame

1/2" EMT conduit fitting

76.4(3")

Lock tab

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

From amplifier

To next

speaker

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

(preset by the factory)

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.

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 Ω" impedance, since the speaker itself or power amplifier may be damaged.

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.)

Base frame

Speaker system

Locking screw Stud screw

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

screws.

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.

3-4. 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.

Aiming marker

Stud screw

Speaker front

Stud receptacle

5.4. 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

5.3. 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 at right.

Follow Steps 2 and 3 on pages 5 – 7.

5.2. 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 on pages 5 – 7.

* Distance between mounting holes: 69.9 mm (2 3/4˝), 83.3 mm (3 9/32˝) or 88.9 mm (3 1/2˝)

• Mounting example 1 • Mounting example 2

Base frame

Memo

Electrical box mounting screws are attached to the speaker.

6. OUTDOOR USE (H-2WP ONLY)

6.1. 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.

6.2. Speaker Mounting Angle

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

its watertightness it must not be tilted any more than 45

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

45゜

7. REPAINTING THE FRONT GRILLE

Follow the procedures below to change the color of the grille.

1. Wipe dirt off the front grille with a soft cloth moistened with a detergent before painting. Do not use volatile

liquids such as thinner.

2. Uniformly spray a thin coating of paint over the grille 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 front grille (grille and frame).

[H-2] Grille: Rolled steel plate

Frame: Fire-resistant ABS resin

[H-2WP] Grille: Rolled steel plate (zinc plating)

Frame: Fire-resistant ABS resin

• Follow the instructions on the paint when painting.

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

Note: Be sure to repeat Step 2 at least twice.

8. PROTECTION CIRCUITRY INFORMATION

• The speaker has built-in overload protection circuitry.

If there is an extremely high level input signal to the speaker, the overload protection circuitry is activated

and cuts off the signal input to the speaker component.

• A sudden drop of the sound volume level during speaker operation indicates that the overload protection

circuitry has been activated. In such a case, reduce the amplifier volume and wait. The protection circuitry is

automatically reset after approximately 10 seconds. After the circuitry is reset, set the volume at a lower

level than before.

Important Note

This overload protection circuitry does not completely protect the speaker component. Depending on the

nature of the excessive signal applied to the loudspeaker, there may be damage to the loudspeaker

components before the protection circuitry can operate. Also, depending on the duration of the excessive input

signal, the protection circuitry may be damaged and will not recover. Take special care that the excessive

input is not applied to the speaker during use.

9. EQUALIZATION

• The H-2 and H-2WP are designed to provide good quality sound without additional equalization. However,

by equalizing them as shown below, sounds can be made more powerful and intelligible.

• Using a digital signal processor, make the following equalization setting.

Filter Frequency Gain Q

HPF 63 Hz Q 0.707

PEQ 100 Hz +10 dB Q 1.871

PEQ 200 Hz

5 dB Q 1.414

PEQ 5 kHz + 1.5 dB Q 0.305

LPF 15.8 kHz Q 0.500

[dB]

+20

+10

Frequency - Gain

20 50 100 500 1k 5k 10k 20k

[Hz]

[dB]

+20

+10

Frequency - Gain

20 50 100 500 1k 5k 10k 20k

[Hz]

[When not using a subwoofer]

[When using a subwoofer]

Filter Frequency Gain Q

HPF 63 Hz Q 0.707

PEQ 100 Hz + 2.5 dB Q 1.871

PEQ 200 Hz

5 dB Q 1.414

PEQ 5 kHz + 1.5 dB Q 0.305

LPF 15.8 kHz Q 0.500

Andere Handbücher für H-2

Dieses Handbuch passt für folgende Modelle

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