TOA Electronics IP-450D, IP-600D, IP-300D User Manual
IP Series
OPERATING INSTRUCTIONS
DUAL POWER AMPLIFIERS
IP-600D
IP-450D
IP-300
D
TABLE OF CONTENTS
1. SAFETY PRECAUTIONS
2. GENERAL DESCRIPTION
3. FEATURES
4. HANDLING PRECAUTIONS
5. NOMENCLATURE AND FUNCTIONS
Front panel
Rear panel
6. INSTALLATION
7. CONNECTIONS
Please follow the instructions in this manual to obtain the optimum results from this unit.
We also recommend that you keep this manual handy f or future reference.
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8. CLEANING THE FILTER
9. REMOVING THE HANDLE
10. INSTALLING AN OPTIONAL
MATCHING TRANSFORMER
LT-101
11. BLOCK DIAGRAM
12. TABLE FOR PROTECTION CIRCUIT
ACTIONS
13. APPEARANCE AND DIMENSIONS
14. SPECIFICATIONS
TOA Corporation
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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 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 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 proper
damage.
When Installing the Unit
Do not expose the unit to rain or an environment
where it may be splashed by water or other
liquids, as doing so may result in fire or electric
shock.
Use the unit only with the voltage specified on the
unit. Using a voltage higher than that which is
specified may result in fire or electric shock.
Do not cut, kink, otherwise damage nor modify the
power supply cord. In addition, avoid using the
power cord in close proximity to heaters, and
never place heavy objects -- including the unit
itself -- on the power cord, as doing so may result
in fire or electric shock.
Be sure to replace the unit's terminal cover after
connection completion. Because the voltage of up
to 100 V is applied to the output terminals, never
touch these terminals to avoid electric shock.
Avoid installing or mounting the unit in unstable
locations, such as on a rickety table or a slanted
surface. Doing so may result in the unit falling
down and causing personal injury and/or property
damage.
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.
When the Unit is in Use
To prevent a fire or electric shock, never open nor
remove the unit case as there are high voltage
components inside the unit. Refer all servicing to
your nearest TOA dealer.
Do not place cups, bowls, or other containers of
liquid or metallic objects on top of the unit. If they
accidentally spill into the unit, this may cause a fire
or electric shock.
Do not insert nor drop metallic objects or
flammable materials in the ventilation slots of the
unit's cover, as this may result in fire or electric
shock.
Do not touch a plug during thunder and lightning,
as this may result in electric shock.
Should the following irregularity be found during
use, immediately switch off the power, disconnect
the power supply plug from the AC outlet 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 the unit falls, or the unit case breaks.
• If the power supply cord is damaged (exposure
of the core, disconnection, etc.)
• If it is malfunctioning (no tone sounds.)
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When Installing the Unit
Never plug in nor remove the power supply plug
with wet hands, as doing so may cause electric
shock.
When unplugging the power supply cord, be sure
to grasp the power supply plug; never pull on the
cord itself. Operating the unit with a damaged
power supply cord may cause a fire or electric
shock.
When moving the unit, be sure to remove its power
supply cord from the wall outlet. Moving the unit
with the power cord connected to the outlet may
cause damage to the power cord, resulting in fire
or electric shock. When removing the power cord,
be sure to hold its plug to pull.
Do not block the ventilation slots in the unit's cover.
Doing so may cause heat to build up inside the
unit and result in fire.
When the Unit is in Use
Do not place heavy objects on the unit as this may
cause it to fall or break which may result in
personal injury and/or property damage. In
addition, the object itself may fall off and cause
injury and/or damage.
Make sure that the volume control is set to
minimum position before power is switched on.
Loud noise produced at high volume when power
is switched on can impair hearing.
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.
Contact your TOA dealer as to the cleaning. If dust
is allowed to accumulate in the unit over a long
period of time, a fire or damage to the unit may
result.
Avoid installing the unit in humid or dusty locations,
in locations exposed to the direct sunlight, near
the heaters, or in locations generating sooty
smoke or steam as doing otherwise may result in
fire or electric shock.
When unpacking or moving the unit, be sure to
handle the unit with two or more persons. Falling
or dropping the unit may cause personal injury
and/or property damage.
RISK OF ELECTRIC SHOCK
DO NOT OPEN
TO REDUCE THE RISK OF ELECTRICAL
SHOCK, DO NOT REMOVE COVER. NO
USER SERVICEABLE PARTS INSIDE.
REFER SERVICING TO QUALIFIED
SERVICE PERSONNEL.
If dust accumulates on the power supply plug or in
the wall AC outlet, a fire may result. Clean it
periodically. In addition, insert the plug in the wall
outlet securely.
Switch off the power, and unplug the power supply
plug from the AC outlet for safety purposes when
cleaning or leaving the unit unused for 10 days or
more. A fire or electric shock may result.
The lighting flash with arrowhead within a
triangle is intended to tell the user that
parts inside the product are a risk of
electric shock to persons.
The exclamation point within a triangle is
intended to tell the user that important
operating and servicing instructions are
in the papers with the appliance.
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2. GENERAL DESCRIPTION
TOA's IP series dual power amplifiers feature high durability, high quality sound and high output power (IP300D: 300 W, IP-450D: 450 W, IP-600D: 600 W - when a 4 load connected). Input/output levels and other
functions can be remotely controlled from external equipment. (An interface unit is required. For details,
contact your TOA dealer.) The amplifier is ideal for use in store sound systems, permanently-installed sound
systems, and other sound systems.
3. FEATURES
Small in size (2-rack unit size) and light in weight.
Variable forced-air cooling system changes the speed of a fan as the heat sink temperature varies, keeping
fan operation noise low.
The input is an electrically-balanced input, which can be converted into a transformer-balanced input using
an optional input transformer.
Three different output modes are made available for selection: Stereo, BTL and parallel outputs. In parallel
mode, the input level of each channel can be set independently.
An internal limiter limits the current during overload, and a protection circuit disconnects the output during an
output short circuit by detecting the levels of both voltage and current. The protection circuit also
disconnects the output during an abnormal temperature rise.
Large output screw terminals (10 mm in width) allow connection of solderless terminals with diameter of 9.5
mm. Because two of each of positive (+) and negative (-) terminals are provided, even the four-core
speaker cables can be connected.
Control I/O terminal. Input and output levels can be remotely controlled or monitored from external
equipment. (An interface unit is required. For details, contact your TOA dealer.)
Detachable carrying handles even after the unit is installed in a rack.
A push-lock level control and its cover prevent accidental setting changes after installation.
An AC inlet simplifies the system maintenance after installation.
4. HANDLING PRECAUTIONS
Line Source: 120 VAC ± 10%, 60 Hz
Never connect the AC power cord to any other line voltage than that specifically designated.
To avoid oscillation, keep the input cable away from the output cable. Particular care must be exercised
when mounting the unit in an equipment rack.
In some installations, a ground loop is formed and such noise as hum may be generated. In such cases, cut
the loop by removing a shorting metal piece attached to the ground terminals on the rear panel. The noise
can be reduced.
These power amplifiers have a filter in their front panel. Clean the filter as frequently as possible. If it
becomes clogged, heat cannot escape from the inside of the unit.
Never connect two amplifier outputs in parallel under any circumstances.
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