Toa A-2060 CE User manual

OPERATING INSTRUCTIONS
PA AMPLIFIERS
A-2030 CE-GB
A-2060 CE-GB
A-2120 CE-GB
A-2240 CE-GB
A-2030 CE
A-2060 CE
A-2120 CE
A-2240 CE
Thank you for purchasing TOA’s PA Ampliers.
Please carefully follow the instructions in this manual to ensure long, trouble-free use of your equipment.
This figure represents the A-2120.

2
TABLE OF CONTENTS
1. IMPORTANT SAFETY INSTRUCTIONS ........................................... 3
2. SAFETY PRECAUTIONS ............................................................................. 3
3. GENERAL DESCRIPTION .......................................................................... 5
4. FEATURES ............................................................................................................ 5
5. NOMENCLATURE AND FUNCTIONS ................................................. 5
Front ............................................................................................................................. 5
Rear ............................................................................................................................. 5
6. CONNECTIONS ................................................................................................. 7
6.1. Input Connections ................................................................................................. 7
6.2. Output Connections ............................................................................................. 8
6.3. Example of External Equipment Connections ..................................................... 8
7. MUTING FUNCTION ........................................................................................ 9
8. INSTALLATION .................................................................................................. 9
9. VOLUME CONTROL SETTINGS ............................................................ 9
10. BLOCK & LEVEL DIAGRAM ................................................................ 10
11. DIMENSIONAL DIAGRAM ...................................................................... 11
12. SPECIFICATIONS ........................................................................................ 12

3
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 re or electric shock.
• Use the unit only with the voltage specied on
the unit. Using a voltage higher than that which is
specied may result in re 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 re or
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.
Indicates a potentially hazardous situation which,
if mishandled, could result in death or serious
personal injury.
WARNING
1. IMPORTANT SAFETY INSTRUCTIONS
• Read these instructions.
• Keep these instructions.
• Heed all warnings.
• Follow all instructions.
• Do not use this apparatus near water.
• Clean only with dry cloth.
• Do not block any ventilation openings. Install in accordance with the manufacture's instructions.
• Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus (including
amplifiers) that produce heat.
• Do not defeat the safety purpose of the polarized or grounding-type plug.
A polarized plug has two blades with one wider than the other. A grounding type plug has two blades and a
third grounding prong. The wide blade or the third prong are provided for your safety.
If the provided plug does not fit into your outlet, consult an electrician for replacement of the obsolete outlet.
• Protect the power cord from being walked on or pinched particularly at plugs, convenience receptacles, and
the point where they exit from the apparatus.
• Only use attachments/accessories specified by the manufacturer.
• Use only with the cart, stand, tripod, bracket, or table specified by the manufacturer, or
sold with the apparatus.
When a cart is used, use caution when moving the cart/apparatus combination to avoid
injury from tip-over.
• Unplug this apparatus during lightning storms or when unused for long periods of time.
• Refer all servicing to qualified service personnel. Servicing is required when the apparatus has been
damaged in any way, such as power-supply cord or plug is damaged, liquid has been spilled or objects have
fallen into the apparatus, the apparatus has been exposed to rain or moisture, does not operate normally, or
has been dropped.
2. 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 rst and
understand the safety symbols and messages so you are thoroughly aware of the potential safety hazards.
The exclamation point within an equilateral triangle is intended to alert the user to the presence of
important operation and maintenance (servicing) instruction in the literature accompanying the appliance.

4
• The terminals marked with symbol are hazardous
live. The external wiring to these terminals requires
installation by an instructed person.
• The apparatus shall be connected to a mains socket
outlet with a protective earthling connection.
• The socket-outlet shall be installed near the
equipment and the plug shall be easily accessible.
When the Unit is in Use
• 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 re 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)
• To prevent a re or electric shock, never open nor
remove the unit case as there are high voltage
components inside the unit. Refer all servicing to
qualied service personnel.
• 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 re
or electric shock.
Indicates a potentially hazardous situation which,
if mishandled, could result in moderate or minor
personal injury, and/or property damage.
CAUTION
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 re or electric shock.
• 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 re. Also, periodically clean the
ventilation slots of dust.
• 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 re or
electric shock.
• To avoid electric shocks, be sure to switch off the
unit’s power when connecting speakers.
• Be sure to follow the instructions below when rack-
mounting the unit. Failure to do so may cause a re
or personal injury.
· Install the equipment rack on a stable, hard oor.
Fix it with anchor bolts or take other arrangements
to prevent it from falling down.
· When connecting the unit’s power cord to an AC
outlet, use the AC outlet with current capacity
allowable to the unit.
· Rack-mounting screws are not supplied with the
unit. Prepare them that are appropriate for the
equipment rack.
• Keep the A-2000 series amplifiers over 10 cm away
from objects that may obstruct air flow to prevent
the unit's internal temperature rise.
Over 10 cm Over 10 cm
Over 10 cm
When the Unit is in Use
• Do not operate the unit for an extended period of
time with the sound distorting. Doing so may cause
the connected speakers to heat, resulting in a re.
• 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. Doing otherwise may cause a re or electric
shock.
An all-pole mains switch with a contact separation
of at least 3 mm in each pole shall be incorporated
in the electrical installation of the building.
The lighting flash with arrowhead symbol,
within an equilateral triangle, is intended to
alert the user to the presence of uninsulated
"dangerous voltage" within the product’s
enclosure that may be of sufficient magnitude
to constitute a risk of electric shock to persons.
ATTENTION
• L'appareil ne doit pas être exposé aux éclaboussures
ou écoulements et tous objets remplis de liquide,
tels que vases, ne doivent pas être sur l’appareil.

5
3. GENERAL DESCRIPTION
TOA’s Basic Ampliers A-2030, A-2060, A-2120, and A-2240 are high cost-performance mixer power ampliers
suited for broadcasting paging or background music in schools, ofces, shops, factories, mosques, churches
and large rooms.
4. FEATURES
• High durability, high reliability, and high cost performance.
• Three microphone inputs, two AUX inputs, and one recording output.
• Speaker output of constant voltage distribution system (70 V or 100 V) and low impedance (4 Ω).
• Operates on both AC and DC power.
• Muting function.
• Independent input volume controls and master volume control.
• Independent tone controls of boost and cut type for both high and low frequencies.
• MIC 1 input is equipped with a 5-pin DIN connector to provide muting control.
• MIC 1 with phantom power for condenser microphones.
• Current limiter circuitry protects transistors, and the thermal protection circuitry prevents a failure due to
overheat.
• All MIC inputs are electronically-balanced input.
5. NOMENCLATURE AND FUNCTIONS
[Front]
[Rear]
1. Power switch
Press to turn ON the power.
Press again to turn the power STANDBY.
Disconnect the AC mains plug or DC Terminal to
shut the power OFF completely.
2. Power indicator
Lights green when power is switched ON.
3. Signal indicator
Lights green when power is switched ON, and
indicates an output signal.
4. Peak indicator
Lights red to indicate the output signal reaches the
peak level, this indicates that sound is distorted.
In such a case, adjust each volume control to
reduce output level.
1
2345 6 7 8
9
10 11 12 13
141516 17
18 19
CE
CE-GB

6
5. Microphone volume control
Adjusts the microphone level.
6. AUX volume control
Adjusts the AUX level.
7. Bass control
Adjusts bass response. Rotate clockwise to
increase bass output, and counterclockwise
to reduce it. The center position provides at
characteristics.
8. Treble control
Adjusts treble response. Rotate clockwise to
increase treble output, and counterclockwise
to reduce it. The center position provides at
characteristics.
9. Master volume control
Adjusts the overall signal level.
10. AC power cord
Connects to an AC power source.
11. DC terminal
Connects to a DC power supply of 24 V.
12. Output terminals
Connect to speakers. When connecting speakers
use only one of the speaker output terminals, low
or high impedance.
13. Terminal cover
To avoid electric shock by high voltage from
output terminal, put back the terminal cover after
connecting speaker cords.
14. MIC 1, MIC 2 and MIC 3 inputs
• (Mic 1: 5-pin DIN socket)
–60 dB*, 600 Ω, electronically balanced. Not
only a dynamic microphone but also phantom
powered microphone can connect with only this
MIC 1 input.
Use a 5-pin DIN plug connector when connecting
a phantom powered microphone to this input.
In this case please set phantom switch in ON.
When it connects Dynamic Microphone, please
set phantom switch in OFF by all means.
• (Mic2 & Mic 3 : Double pole phone jack)
–60 dB*, 600 Ω, electronically balanced.
Because microphone input is balanced type,
phone plug uses double pole type, but can use
even Single pole type.
(Refer to Input Connection in detail.)
15. AUX 1 and AUX 2 input terminals
–20 dB*, 10 kΩ, unbalanced. Monaural RCA pin
jacks. Accept external equipment output signal.
16. Recording output (REC OUT)
0 dB*, 600 Ω, unbalanced. Outputs all input signals
before the master volume control. Connect to a
cassette deck, etc when recording the broadcast
contents.
17. Muting level control
Adjusts the background music level 0 to 30 dB to
be automatically reduced when priority function
is operated.
18. Phantom switch
Selecting to ON position supplies power for
condenser microphones from Mic 1. Be sure to
select OFF position when using the microphone
that can not be operated on phantom power. This
phantom power is 21 V DC.
19. Functional earth terminal
Hum noise may be generated when external
equipment is connected to the unit. Connecting
this terminal to the functional earth terminal of the
external equipment may reduce the hum noise.
Note: This terminal is not for protective earth.
• Explanation of Symbols
Symbol Explanation
Front panel: Volume controls: turn it clockwise to increase the volume, turn it counterclockwise to
decrease the volume.
Standby mode of the A-2000 series ampliers: push the button to set the system into standby
mode.
During the standby mode you cannot broadcast BGM but all other system functions are still active.
Warning: Indicates a potentially hazardous situation which, if mishandled, could result in death
or serious personal injury.
Do not touch the parts indicated with this symbol. These can provide a dangerous voltage that
can result in death or serious personal injury when touching them.
Do not trash this device into normal waste.
Use the foreseen electric waste collection places.
This mark is a declaration that this product complies with all applicable EU directive and
regulations.
This symbol will indicate a device’s compliance with all applicable ACMA regulatory arrangements
(telecommunications, radio communications, EMC and EME) ; and with applicable electrical equipment
safety requirements relevant to each state and territory in Australia.
* 0 dB = 1 V

7
6. CONNECTIONS
6.1. Input Connections
6.1.1. Mic 1 Connection (5-pin DIN plug) 5-pin DIN connection
Pin-1: Hot, Pin-2: Earth, Pin-3: Cold, Pin-4 and Pin-5: mute switch. When pin-4 is shorted with pin-5, the muting
function is operated.
6.1.2. Mic 2 & Mic 3 connection (phone plug)
Because MIC input is electronically balanced type, it uses double pole phone plug.
However, the microphone input circuit is in a condition of unbalance when it uses Single pole type. Because it is
easy to pick up noise with the state of unbalance, the length of the microphone cable recommends what is used at
less than 10 m.
Phantom Switch Position
In the case of Dynamic Microphone
In the case of Phantom Power Microphone
Mute SW
To Mic In
p
ut Dynamic MIC
Two Core
Shielded
13
4
2
5
E
MIC
PHANTOM
ON
OFF
PHANTOM
ONOFF
To Mic Input
MICTwo Core Shielded Cable
Double Pole Phone Plug
MIC
One Core Shielded
To Mic Input
Single Pole Phone Plug
MIC
MIC
6.1.3. AUX input connections (RCA pin jack)
Signal source (Tuner, Cassette Tape, etc)
One Core Shielded

8
6.2. Output Connections
Notes
• Tripartite the 4 Ω, 70 V and 100 V terminals cannot be used at the same time.
• Impedances indicated at the terminal represent the total speaker system (load) impedances.
Total impedance of 100 V line: 330 Ω (A-2030), 170 Ω (A-2060), 83 Ω (A-2120), 42 Ω (A-2240)
Total impedance of 70 V line: 170 Ω (A-2030), 83 Ω (A-2060), 42 Ω (A-2120), 21 Ω (A-2240)
Be sure to attach the supplied terminal cover after connection
completion.
Because high voltage is applied to the speaker terminals, never touch
these terminals to avoid electric shock.
CAUTION
6.3. Example of External Equipment Connections
- +24V COM 4 COM 70V 100V- +24V COM 4 COM 70V 100V- +24V COM 4 COM 70V100V
Low Impedance Speaker 70 V Line Speaker
70 V Line
Speaker
4 – 16 Ω
Speaker 100 V Line
Speaker
100 V Line Speaker
AC Mains
Radio Tuner
or CD Player
Cassette Tape
Player
Cassette Tape
Recorder
24 V DC Battery
Electret Condenser
Microphone
Dynamic Microphone
Dynamic Microphone
100 V Line
Horn Speaker with
Matching Transformer
100 V Line
Column Speaker with
Matching Transformer

9
7. MUTING FUNCTION
Shorting DIN plugs pin-4 and pin-5 of rear-mounted Mic 1 input allows Mic 1 input to reduce the volume of
Mic 2, Mic 3, Aux1, and Aux 2 inputs by 0 to 30 dB. The attenuation level is preset for 30 dB at the factory. We
recommend using TOA’s microphone PM-222D or PM-660D to bring the best results.
0-30dB
MUTE ADJ
E
13
4
2
5Hot
Cold
Ground (Shield)
Mute Switch
Remark: About Mute Function
When make operates Mute SW, the mute circuit works promptly.
It returns to an old state about 3 seconds later when it does break of Mute SW.
Over 10 cm Over 10 cm
Over 10 cm
8. INSTALLATION
Keep the unit’s all sides over 10 cm (3.94 inches) away from object that may obstruct air ow to prevent the unit’s
internal temperature rise.
9. VOLUME CONTROL SETTINGS
Output levels are adjustable with individual volume controls. For music play or announcement, adjust the
corresponding volume control so that the red peak indicator lights intermittently.
Note that the sound quality is downgraded when the peak indicator remains lit.

10
10. BLOCK & LEVEL DIAGRAM
Power LED
Thermostat
DC
Fuse
DC FAN: Only for A-2240
Thermal Sensor
Peak Level LED
Signal Level LED
MasterTone
Bass Treble
Mute Level
0-30dB
+21V DC
Phantom SW
+40
-60
-40
-20
+20
0 dBV
Rec Out
600Ω,0dBV,
Unbalanced
MIC3
600Ω,–60dBV,
Balanced
MIC2
600Ω,–60dBV,
Balanced
MIC1
600Ω,–60dBV,
Balanced
AUX1
10kΩ
, –20dBV,
Unbalanced
AUX2
10kΩ,-20dBV,
Unbalanced
OFF ON
DC
Fuse
*Choke Coil: only for A-2240
Power Amp
100Voutput
+40 dBV
Pre-Amp
Output
0dBV
Mixing
-20dBV
Aux
-20dBV
Mic
-60dBV

11
11. DIMENSIONAL DIAGRAM
Unit: mm (inches)
This figure represents the A-2120.
This figure represents the A-2060.
[A-2030 CE, A-2030 CE-GB, A-2060 CE, A-2030 CE-GB]
[A-2120 CE, A-2120 CE-GB, A-2240 CE, A-2240 CE-GB]

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
URL: https://www.toa.jp/
133-02-00594-00
12. SPECIFICATIONS
Model No. A-2030
CE, CE-GB
A-2060
CE, CE-GB
A-2120
CE, CE-GB
A-2240
CE, CE-GB
Power Source 220 – 240 V AC or 24 V DC
Rated Output 30 W 60 W 120 W 240 W
Power Consumption
(EN60065)
34 W 72 W 124 W 238 W
Power Consumption
(DC operation at rated
output)
2 A 4 A 8 A 15 A
Frequency Response 50 Hz – 20 kHz (±3 dB)
Distortion 1% or less at 1 kHz, 1/3 rated power
Input MIC 1 –60 dB*, 600 Ω, balanced, DIN type (5 pins)
MIC 2, 3 –60 dB*, 600 Ω, balanced, phone jack
AUX 1, 2 –20 dB*, 10 kΩ, unbalanced, RCA pin jack
Mute Contact pin 4 – 5 closure input (for MIC 1)
Output Speaker Out Balanced (oating), M3.5 screw terminal, distance between barriers: 8.3 mm
(0.33")
100 V 330 Ω 170 Ω 83 Ω 42 Ω
70 V 170 Ω 83 Ω 42 Ω 21 Ω
4 Ω 11 V 15.5 V 22 V 31 V
Rec out 0 dB*, 600 Ω, unbalanced, RCA pin jack
Phantom Power DC +21 V (MIC 1)
S/N Ratio 60 dB or more
Tone Control Bass: ±10 dB at 100 Hz
Treble: ±10 dB at 10 kHz
Muting MIC 1 overrides other input signals with 0 – 30 dB attenuation by mute terminal
contact in MIC 1 DIN type connector.
Ventilation –––Fan cooling
Finish Panel: ABS resin, black
Case: Steel plate, black
Dimensions 420 (w) x 100.9 (h) x 280.3 (d) mm
(16.54" x 3.97" x 11.04")
420 (w) x 100.9 (h) x 360.3 (d) mm
(16.54" x 3.97" x 14.19")
Weight 5 kg (11.05 lb) 7 kg (15.43 lb) 10.8 kg (23.81 lb) 13.2 kg (29.1 lb)
* 0 dB = 1 V
Notes
• CE and CE-GB are the identically same specications, but only power supply cord is different.
• The design and specications are subject to change without notice for improvement.