TOA SC-615T Manual

TOA Højttaler SC-615T

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Side 1/2

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.

HORN SPEAKER INSTRUCTION MANUAL

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

• Use only the specified amplifier output voltage and

impedance, as exceeding the specified limits could

result in fire or other failures (high-impedance

version).

• To avoid accidental air explosions, do not use the

unit around gasoline, thinner or other combustibles.

• 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.

• Protect the unit from exposure in snowy areas, as

the weight of snow build-up could cause the

speaker to fall, resulting in personal injury.

• Do not use other methods than specified to mount

the bracket. 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 when mounting in

locations high above the ground. Failure to do so

could result in personal injury if the speaker should

later fall for any reason.

• Use nuts and bolts that are appropriate for the

ceiling's or wall's structure and composition. Failure

to do so may cause the speaker to fall, resulting in

material damage and possible personal injury.

• 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.

• Avoid mounting the unit in locations exposed to

constant vibration. The mounting bracket can be

damaged by excessive vibration, potentially

causing the speaker to fall, which could result in

personal injury.

• To avoid electric shocks, be sure to switch off the

amplifier power when connecting the speaker.

• Avoid installing the unit in humid or dusty locations,

or in locations exposed to heaters, solvents, acid,

alkali, smoke, steam or direct sunlight (except

outdoor-use versions), as excessive exposure to

these factors could result in speaker failure, 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.

• Do not stand or sit on, nor hang down from the unit

as this may cause it to fall down or drop, resulting

in personal injury and/or property damage.

• Have the unit periodically checked by the shop

from where it was purchased. Also, when mounting

the unit on a vehicle, be sure to check both the

speaker and its mounts before moving. Failure to

do so could result in the speaker falling off due to

damage or corrosion to the speaker or its mounts,

and possible personal injury.

WARNING

CAUTION

133-01-00135-01

URL: http://www.toa.jp/

2. HOW TO USE

2.1. Handling Precautions

• When installing the speaker, be sure the drain hole is positioned facing the ground

(SC-610, SC-615, and SC-630 series). Without the drain hole positioned correctly, rain

could flood the speaker, causing it to fail.

• Be sure to note the following polarities when multiple speakers are used in the same location. Incorrect connections

could result in no bass output or decreased volume.

Black speaker cable: Positive (+), White speaker cable: Negative (–) or COM

Connect the cables to other cables of the same colors in parallel connections, and to cables of different colors in series

connections.

• To avoid amplifier failure, do not simultaneously connect both low- and high-impedance speakers to the amplifier.

Ensure that only one type is connected.

Notes: (1) "Low-impedance" refers to speakers having no built-in matching transformer.

(2) "High-impedance" refers to speakers having a built-in matching transformer.

• Ensure only the specified line voltage (amplifier output voltage) is used for the high-impedance speakers. The line

voltage is indicated on the name plate as either [25/70 V LINE] or [70/100 V LINE]. If an unspecified line voltage is

connected, fire or equipment failure could result.

2.2. Connections

2.2.1. Low-impedance speakers

When using two or more speakers, all connected speakers must have identical impedance and input ratings.

(1) The total speaker impedance must be equal to the amplifier output impedance. If the total speaker impedance is less

than the amplifier's output impedance, the speakers or amplifier could fail.

(2) When parallel-connecting all speakers, the total rated input of all the speakers must be greater than the amplifier output.

Note: It is highly recommended that solid wire speaker cable with diameter of over 2 mm or strand wire of over 3.5 mm

be used to minimize transmission loss. When there are long distances between amplifier and speaker (30 – 50 m),

connect an optional matching transformer to convert the speakers to high-impedance operation.

2.2.2. High-impedance speakers

The total rated input of all connected speakers must be equal to or smaller than the amplifier output. If the total speaker

input rating is greater than the amplifier output, the amplifier could fail. Connect all speakers in parallel.

2.3. Impedance Selection

Select the desired impedance by inserting a screwdriver into the impedance selector switch slot and turning the switch.

The OFF position disconnects the speaker from the amplifier and no sound is output.

Notes: (1) Speakers are factory-preset for the highest rated input of two line

voltages (i.e. 100 V line in the case of the 70/100 V line version).

(2) The speaker's rated input and impedance are indicated on the

name plate.

Speakers are designed to select either of the two line voltages (rated

amplifier output voltage). Check to confirm the line voltage to use, and

select the line voltage impedance specified on the name plate.

2.4. Assembling the Speaker

Speakers are packed in their cartons divided into the

following three parts: Bell, Center and Bracket. Assemble

these components as shown in the figure using four assembly

screws attached to the "Center."

Impedance marker

Impedance pointer

(Also function as a screwdriver slot.)

Impedance selector switch

Drain hole Center

Do not use the impedance selector switch position marked as [–], because

this position could result in amplifier or speaker failure, or fire.

WARNING

[Front view]

Bracket

Assembly screws

Center

Bell

Applicable Speaker :

TC-615 / 615M / 630 / 630M / 631 / 631M

TH-650 / 660

Traceability Information for Europe

Manufacturer: TOA Corporation

7-2-1, Minatojima-Nakamachi, Chuo-ku, Kobe, Hyogo,

Japan

Authorized representative: TOA Electronics Europe GmbH

Suederstrasse 282, 20537 Hamburg,

Germany

Produkt Specifikationer

Mærke:	TOA
Kategori:	Højttaler
Model:	SC-615T

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