ITC T-4120UC User manual

OPERATION MANUAL
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.
PUBLIC ADDRESS SYSTEM
T-4120UC/T-4240UC
CLASS D POWER AMPLIFIER
MENU
TF
USB
-10 +10
dB -10 +10 dB -10 +10
dB -10 +10 dB -10 +10
dB -10 +10 dB -10 +10
dB -10 +10
dB
V+ MODEV
CH1
T- 4 24 0 UC
CLASS D POWER
AMPLIFIER
MIN MAX
PROT
CLIP
SIG
4-16Ω
100V
4-16Ω
PO W ER
CH2 CH3 CH4
100V
PROT
CLIP
SIG
MIN MAX MIN MAX MIN MAX
INPUT1 INPUT2 INPUT3 INPUT4 LINE2
MIN MAX
LINE1
MIN MAXMIN MAXMIN MAXMIN MAXMIN MAX

TABLE OF CONTENTS
2
1. SAFETY PRECAUTIONS .......................................................................................3
2. GENERAL DESCRIPTION ....................................................................................5
3. FEATURES ...............................................................................................................5
4. NOMENCLATURE AND FUNCTIONS
4.1 Front Panel ..............................................................................................................6
4.2 Rear Panel............................................................................................................... 7
5. OPERATION ILLUSTRATION ................................................................................8
6. SCREEN OPERATION INSTRUCTIONS............................................................. 11
7. ............................................................................................15
8. APPLICATIONS ..................................................................................................... 16
9.BLOCK DIAGRAM .................................................................................................17
10.SPECIFICATIONS ...............................................................................................18
11.DIMENSIONAL DIAGRAM .................................................................................19
TROUBLESHOOTING

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 and
understand the safety symbols and messages so you are thoroughly aware of the potential safety
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.
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 high voltage is
applied to the speaker terminals, never touch these
terminals to avoid electric shock.
Be sure to ground to the safety ground (earth)
terminal to avoid electric shock. Never ground to a
gas pipe as a catastrophic disaster may result.
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, causing personal injury and/or property
damage.
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 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.)
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 dealer.
ITC
ITC
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.
1. SAFETY PRECAUTIONS
3

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.
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.
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 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 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.
Contact your 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.
ITC
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. Doing otherwise may cause a fire or electric
shock.
SAFETY PRECAUTIONS
4
Due to product upgrades, while some of the features and specification in the user manual does not
match the actual functions, sorry for any inconvenience and thanks for your kind understanding!

2. GENERAL DESCRIPTION
5
3. FEATURES
The new UC series of digital mixer amplifiers are more efficient and a cost-effective solution
specially developed to meet the needs of the global market. It is suitable for commercial audio
installations. Just to meet the needs of emerging markets to provide high-quality equipment at an
affordable price, the UC series mixer amplifiers are equipped with 4R and 100V two-way outputs
and a series of convenient functions, which are flexible and applicable worldwide. The series
combines many convenient and flexible functions, including Bluetooth and USB media player;
low impedance function (4ohm/8ohm) and high impedance output (100V); each output channel is
equipped with a separate bass and treble control.
1. 4 channels output, 120W/240W constant impedance or constant voltage high performance
digital mixer amplifier (4-16R/100V).
2. Built-in MP3 recording function.
3. 6-channel independent volume control.
4. The 6-channel audio source can be configured as a matrix to each channel output.
5. INPUT1-4 input with adjustable gain control.
6. The 4 outputs are with independent volume control.
7. Remote microphone input, max can be 4 remote microphones.
8. Built-in MP3 (U disk/SD card) player function.
9. Built-in FM radio function.
10. With high-end TFT display.
11. 4 outputs can remotely control the panel to adjust the circuit.
12. There are distortion, protection, signal, output status indicators.
13. INPUT1-4 channels can be configured with phantom power.
14. INPUT1-4 channels have priority and mixing selection function.
15. Priority input port for EMC alarm.
16. ALARM interface plays the specified alarm music.
17. Built-in Bluetooth function, can be connected to mobile phone/computer, with external high-
gain Bluetooth antenna.
18. 4 mute interfaces can be connected to the fire control interface.
19. Priority: EMC >MUTE REMOTE MIC INPUT1-4 LINE1-2.> > >

4. NOMENCLATURE AND FUNCTIONS
6
4.1 FRONT PANEL
1. INPUT 1-4 channel volume control, the potentiometer controls the input level. When
the potentiometer is turned clockwise, the volume will gradually increase, and the
reverse rotation will gradually decrease the volume.
2. LINE1/LINE2 input channel volume control.
3. BASS—bass knob of main channel.
4. TREBLE—treble knob of main channel.
5. SIG—signal indicator, when there is music signal input, as the volume potentiometer
is turned on, this signal indicator lights up; the brightness changes with the size of the
input music signal.
6. CLP—Clip indicator. When the indicator on the machine is lit by signal, the output
signal has been distorted at this time, indicating that the input signal is too large.
Please reduce the input signal.
7. PROT—This indicator light is on when the machine protection function is activated.
If the speaker wire is short-circuited, or the power of the connected speakers is 1.5 times
greater than the rated power, the protection circuit inside the machine will work, and the
power amplifier output will be disconnected and the protection indicator light will light up
(the signal indicator is only used to indicate the input music signal, when in the protection
state, the signal indicator still lights up according to the size of the input signal). When the
machine is working normally, this indicator is off.
8. 4~16Ω—constant impedance 4~16Ω mode status indicator.
9. 100V—constant voltage 100V mode status indicator.
10. ON/OFF—Power switch, press the switch up to turn on the power; press the switch down
to turn off the power.
11. POWER—power indicator light. When the power is turned on, the power indicator light is
on, indicating that the machine is in working condition. When the power is off (shutdown),
the power indicator goes out.
12. Main channel CH1-CH4 volume control.
13. Operation button area
14. 2.4-inch color screen, used to display the current working status of the machine;
15. USB interface.
16. TF socket.
MENU
TF
USB
-10 +10
dB -10 +10 dB -10 +10
dB -10 +10 dB -10 +10
dB -10 +10 dB -10 +10
dB -10 +10
dB
V+ MODEV
CH1
T- 4 24 0 UC
CLASS D POWER
AMPLIFIER
MIN MAX
PROT
CLIP
SIG
4-16Ω
100V
4-16Ω
PO W ER
CH2 CH3 CH4
100V
PROT
CLIP
SIG
MIN MAX MIN MAX MIN MAX
INPUT1 INPUT2 INPUT3 INPUT4 LINE2
MIN MAX
LINE1
MIN MAXMIN MAXMIN MAXMIN MAXMIN MAX
123 4 5678910
11
12
13
14
15
16

7
4. NOMENCLATURE AND FUNCTIONS
4.2 REAR PANEL
1. AC input socket.
2.CH1/CH2/CH3/CH4 audio output port.
3. REM MIC input network port.
4. PANEL access network port.
5. MUTE trigger port.
6. ALARM1, ALARM2 trigger port.
7. EMC input port.
8. GAIN adjustment potentiometer of input channel.
9. INPUT balanced input interface.
10. Bluetooth antenna.
11. Function dial switch.
12. FM antenna interface.
13. LINE1 input interface.
14. LINE2 input interface.
15. AUDIO OUTPUT interface.
1200 W T15A L 250V
~230 V 50 Hz
OUTP UT
INP UT 1
GAI N
INPU T1
G+
-
INP UT 2
GAI N
INP UT 3
GAI N
INP UT 4
GAI N
REMO TE
REM MI C PANEL
FM ANT
G+
EMC IN
ALARM
MUTE
CH1
CH3 CH2
CH4 INPUT4
G+
-
INPU T2
G+
-
INPU T3
G+
-
CH4
+ +
- -
CH3
CH2
+ +
- -
CH1
INP UT1 Pri orty INP UT2 Pri orty INP UT3 Pri orty INP UT4 Pri orty
1 2 345 6
CH1 /C H2: 4-1 6Ω CH3 /C H4: 4-1 6Ω
INP UT1 Pha ntom INP UT2 Pha ntom INP UT3 Pha ntom INP UT4 Pha ntom
CH1 -R EMO TE CH2 -R EMO TE CH3 -R EMO TE CH4 -R EMO TE
1 2 3
OFFON
5 6 78
4
DIP O N ON DIP
G
2
1
100V/4-16Ω
100V/4-16Ω
C
D
AUDI O OU TP UT
CH1CH2
CH3
CH4
LINE1LINE2
A
B
BT ANT
125
11
3 4 7 986
13
14 12
10
15

8
5. OPERATION ILLUSTRATION
1. Operation button description
MENU
V+ MODEV
12
3
4
5
6
7
The button area is shown on the right. The "MENU" knob can be rotated clockwise or counterclockwise
to move the interface cursor and select the specified function. Short press the "MENU" knob to confirm
the operation. The "MODE" button is dedicated to switching multimedia functions: Music Center, FM
radio, Recording, Bluetooth.
1.Play/Pause button 2. Next song button
3. "MENU" knob button 4. "MODE" mode button
5. Volume + button 6. Volume-button
7. Last song button
Special function operation instructions:
① Update resource library and firmware with TF card inside the device
Put the resource library and firmware files into the root directory of the TF card and insert it
into the built-in TF card socket, when the device is off, press and hold the "MENU" knob to
turn it on, after seeing the screen light up and displaying information, release the button to
automatically update the firmware and resource library.
② Update the system Bootloader
Put the system Bootloader file into the root directory of the TF card and insert it into the
built-in TF card socket, when the device is off, press and hold the "Play/Pause" button to turn
it on, after seeing the screen light up and displaying information, release the button to automatically
update the firmware and resource Library.
2. Volume Control
The master volume control is shown below, CH 1 and CH2 share the same constant pressure/
constant impedance indicator light, CH3 and CH4 share the same constant voltage/constant
impedance indicator light.
CH1
MIN MAX
PROT
CLIP
SIG
4-16Ω
100V
4-16Ω
CH2 CH3 CH4
100V
PROT
CLIP
SIG
MIN MAX MIN MAX MIN MAX
-10 +10
dB -10 +10 dB -10 +10
dB -10 +10 dB -10 +10
dB -10 +10 dB -10 +10
dB -10 +10
dB
The treble and bass control are shown below.The maximum adjustable of BASSS or TREBLE
is ±10dB.
3. Treble and bass control
The enlarged view of the DIP switch is shown on the right,
it can be used to configure specific functions. Specific
functions include configuration of constant voltage/constant
impedance mode, local/remote volume control, INPUTx
priority control, and INPUTx Phantom function disable/enable.
4.Dial Function Description
INPUT1 Priorty INPUT2 Priorty INPUT3 Priorty INPUT4 Priorty
1 2 345 6
CH1/CH2:4-16Ω CH3/CH4:4-16Ω
INPUT1 Phantom INPUT2 Phantom INPUT3 Phantom INPUT4 Phantom
CH1-REMOTE CH2-REMOTE CH3-REMOTE CH4-REMOTE
1 2 3
OFFON
5 6 78
4
DIP ON ON DIP

9
5. OPERATION ILLUSTRATION
Local/remote volume control
INPUTx priority control
Description:
Phantom function
5. Description of ALARM and EMC IN
Local volume control: Turn the switch corresponding to CH1-REMOTE to OFF, and the other
channels are the same.
Remote volume control: Turn the switch corresponding to CH1-REMOTE to ON, and the other
channels are the same.
INPUTx normal priority: Turn the switch corresponding to INPUTx Priority to OFF.
INPUTx high priority: Turn the switch corresponding to INPUTx Priority to ON.
When INPUTx is set to high priority, the priority of INPUTx is higher than that of LINE1 and
LINE2. It means once the matrix switch between INPUTx and output channel CHx is turned
on, the matrix switch between LINE1, LINE2 and output channel CHx will be automatically
turned off, regardless of whether the switch between LINE1, LINE2 and CHx is turned on.
When INPUTx is set to normal priority, INPUTx and LINEx have the same priority.
Turn on the Phantom function: Turn the dial switch corresponding to INPUTx Phantom to ON.
Turn off the Phantom function: Turn the dial switch corresponding to INPUTx Phantom to OFF.
The ALARM and EMC IN trigger and input interfaces are shown in the figure above. For EMC
trigger, you only need to input audio to the EMC IN interface to trigger. When triggered, the
home page of the screen interface will display: "EMC audio input".
Before using the ALARM function, you need to insert a TF card in the front panel, and put the alarm
audio file in the specified folder of the TF card. The specific folder is named
ALARM1 corresponding folder: _ALARM1 FOLDER
ALARM2 corresponding folder: _ALARM2_FOLDER
_
G+
EMC IN
ALARM
G
2
1
Note:
The folder must be placed in the root directory of the TF card. Each alarm audio folder can
only contain one audio file. If multiple audio files are placed, only one can be recognized.
When an alarm is triggered, the audio file under the corresponding file will be played
cyclically, and the screen interface will automatically jump to the home page, and the alarm
information will be displayed below.
6. MUTE description
The MUTE trigger port is shown in the figure above. To mute a channel, just short-circuit the
port in the figure, but note that the corresponding channel will not be muted when EMC is
triggered.
MUTE
CH1
CH3 CH2
CH4

10
5. OPERATION ILLUSTRATION
7. Speaker Connection
Before turning on the device, please carefully confirm that the load is constant-voltage or
constant-impedance speakers and set the amplifier to the corresponding output mode. It is
forbidden to switch the constant voltage and constant impedance state arbitrarily when the
power is on.
Constant voltage mode: Turn the switches corresponding to CH1/CH2: 4-16Ω and CH3/CH4:
4-16Ω to OFF.
Constant impedance mode: Turn the switches corresponding to CH1/CH2: 4-16Ω and CH3/CH4:
4-16Ω to ON.
The operation method is as follows:
①When the 100V and speaker output
mode selection switch is set to the 100V
position, as shown in the figure below:
4-16Ω②When the 100V and speaker output
mode selection switch is set to the 4-16Ω
position, as shown in the figure below:
4-16Ω
8. Audio source priority
EMC >MUTE >REMOTE MIC >INPUT1-4 >LINE1-2。
100V voltage speaker
OUTPUT
CH2
+ +
- -
CH1
100V/4-16Ω
SPK-SPK+
CH1/CH2:4-16Ω
CH3/CH4:4-16Ω
12
OFF
ON
DIP
4Ω constant impedance speaker
OUTPUT
CH2
+ +
- -
CH1
100V/4-16Ω
SPK-SPK+
CH1/CH2:4-16Ω
CH3/CH4:4-16Ω
12
OFF
ON
DIP

11
6. SCREEN OPERATION INSTRUCTIONS
1. Home
The homepage is mainly composed of the three function icons of “Audio matrix”, “Multimedia”
and “Volume” and the status area below, which will display different status information in
different states. On the home page, you can use the “MENU” knob to switch the cursor to
select a function, and short press the “MENU” knob to enter that function.On the home page,
you can also use the “MODE” button to switch the multimedia function mode ( except for the
recording mode). The recording mode can be switched by the “MODE” button on the multimedia
interface, or switch to this mode by default when both the U disk and TF card are removed.
Left: no status display Right: status display
2. Audio matrix
The audio matrix interface is used to configure the switch of each channel of the audio matrix, as
shown in the figure below, you can use the "MENU" knob to switch the cursor to select the channel
to be configured, and then short press the "MENU" knob to switch the state "ON" or "OFF", one
output channel CHx allows up to 4 input channels to be connected simultaneously.
1. Return button; 2. Input channel 3. Output channel
4. Channel switch status: "ON" or "OFF";
5. Page number information and page turn button.
; ;
1
2
3
4
5
Left: Audio matrix page 1
Right: Audio matrix page 2
3. Multimedia
3.1 Music center
The interface of the music center is shown below:
1.Return button;
2. TF mode indication, when it is not highlighted,
it means it is not TF mode;
3. Volume;
4. The total number of recognizable songs on the
media USB or TF;
5. Play progress bar;
1
2
3
45678
9
10
11

12
6. SCREEN OPERATION INSTRUCTIONS
Play control
Control play/pause, last/next song, volume increase and decrease through the button area on the
machine panel. In addition, the "MENU" knob can be used to control play/pause.
Play mode switch
Use the "MENU" knob to select the one indicated by the number 9 in the figure, short press the
"MENU" knob to cycle through the 4 playback modes: List loop, Single cycle, Order playback
and Single playback.
Play media switching
Use the "MENU" knob to select "TF" or "USB", and short press the "MENU" knob to switch to the
"TF" or "USB" mode. Of course, if the "TF" or "USB" is not inserted, the switch cannot be successful.
6. Play/Pause button;
7. Play time;
8. Song duration;
9. Play mode (List loop, Single cycle, Order playback, Single playback);
10. Song number and song file name;
11. USB mode indication, when highlighted, it means it is in USB mode.
3.2 FM radio
The FM interface is shown in the figure below, which can display basic information such as
channel number, channel frequency, playback status, and volume, specific:
FM radio
1
2
3
4
5
1.Return button;
2.Channel number;
3.Channel frequency;
4.Play/Stop button;
5.Volume.
In addition, long press the play/pause button to perform a re-searching operation. As shown in
the figure below, “Searching” will be displayed in front of the channel number, indicating that
the channel is searching. After the search is completed, the display screen will automatically
remove the “Searching” letter display.
FM in searching

13
6. SCREEN OPERATION INSTRUCTIONS
3.3 Recorder
The audio recorder interface is shown in the figure below. It can be used to record the audio
of some audio input channels and store it in the form of MP3 files to USB or TF.
Left: Recorder interface Right: Recorder player interface
1. Return button;
2. Audio channel, can select some channels for recording;
3. Recording time;
4. Start/End recording button;
5. Recording storage file name;
6. Storage medium type: TF or USB.
Start recording
Short press the “Play/Pause” button or turn the “MENU” knob to switch the cursor to the Start/
End recording button (label 4 in the figure) to start or end recording. After recording is turned
on, the audio matrix will open the selected audio channel and output, and the unselected
channel will be closed.
End recording
After finishing recording, it will automatically jump to the recorder player interface (as shown) to
play the audio just recorded, and automatically turn on the Multimedia input channel and CHx
channel switch configured in the audio matrix interface.
Recorder player
To enter the recorder player interface, in addition to automatically entering when ending recording,
you can also long press the “Last song”or “Next song” button to enter the recorder player interface
when recording is not started.
In the recorder player interface, “Recorder player” will be additionally displayed in green below to
indicate that this is not a music center, but a recording file playback interface. In this interface,
the audio matrix will only turn on the Multimedia input channel and CHx channel switch
configured in the “Audio matrix” interface, and other channels will be turned off.
To exit the recorder player interface, press the label 1 (Return button) to directly return to the
recorder interface, or press the “MODE” button to return to the recorder interface and restore
the audio matrix switch state.
1
3
24
5
6

14
6. SCREEN OPERATION INSTRUCTIONS
3.4 Bluetooth
The Bluetooth interface is shown in the figure below, which can display the Bluetooth connection
status and volume value.
Left: Bluetooth is connected Right: Bluetooth is disconnected
The volume interface is shown in the figure below, which displays the CHx volume value of the
main output channel, remote or local control volume, and the online and offline status of remote
audio control equipment.
4. Volume
43
1
2
1.Return button
2. Output channel CHx
3. Volume control status: local, remote online, remote offline
4. Volume value, indicating the volume value of the local volume
control or remote audio control equipment.
When the volume control status is “Local” or “Remote offline”, the volume is controlled by the host
volume knob; when the volume control status is “Remote online”, the volume is controlled by the
remote audio control equipment.

15
7. TROUBLESHOOTING
Failure phenomena Failure cause
1. Power switch is not opened
1Power line is cut off
2. The protection function of the equipment is
not activated
.
2. All lines are connected, but there is
no sound.
1. The power switch is not opened or the power
plug is bad contacted.
2. The fuse is burnt
3. The volume knob is not opened or turned down
to a extra low level
4. There is no audio signal input
5. There is short-circuit in the speaker line.
3. The sound suddenly disappears in
normal status.
1. The equipment is in very high temperature to
make it into protection status.
2. The connection wire is bad contact.
4. Low sound
The equipment is set to be low impedance
connection, but the speakers connected is
with high impedance.
5. Sound is distorted The input level of Mic or external equipment
is too high

REAR PANEL CONNECTIONS
16
8. APPLICATIONS
1200W T15 AL 250V
~230V 50Hz
OUTPUT
INP UT1
GAI N
INPUT1
G+
-
INP UT2
GAI N
INP UT3
GAI N
INP UT4
GAI N
REMOTE
REM MIC PANEL
FM ANT
G+
EMC IN
ALARM
MUTE
CH1
CH3 CH2
CH4 INPUT4
G+
-
INPUT2
G+
-
INPUT3
G+
-
CH4
+ +
- -
CH3
CH2
+ +
- -
CH1
INP UT1 Pri orty INP UT2 Pri orty INP UT3 Pri orty INP UT4 Pri orty
1 2 345 6
CH1 /CH 2:4 -16Ω CH3 /CH 4:4 -16Ω
INP UT1 Pha ntom INP UT2 Pha ntom INP UT3 Pha ntom INP UT4 Pha ntom
CH1 -RE MOT E CH2 -RE MOT E CH3 -RE MOT E CH4 -RE MOT E
1 2 3
OFFON
5 6 78
4
DIP O N ON DIP
G
2
1
100V/4-16Ω
100V/4-16Ω
C
D
AUDIO OUTPUT
CH1CH2
CH3
CH4
LINE1LINE2
A
B
BT ANT
OPEN
CLOSE
PLAY STOP NEXTPREVIOUS
ON
OFF
POWER
REMOTE
AM/FM DTS TUNER
PREV NEXT USB/CD EJECT PLAY STOP PLAY
MODE
MUTE
SD
USB
UP
6
AUTO/
MANUAL
5
4
MEM
3
ST/MON
A/F/B
2
1
DOWN
POWER
CD PLAYER
IR STATUS
VOL
PLAY
MSG
MIC
in
PLAY
SIREN
REC in
ON
OFF
STANDBY
PLAYALARM MODE RECORD
STO PSTART
MIC
MICROPHONE WITH ZONE CONTROL
T-214B
T-651
1 1+2 2
OUTPUT OUTPUT OUTPUT
1 1+2 2 1 1+2 2
OUTPUT
1 1+2 2
OUTPUT
1 1+2 2
OUTPUT
1 1+2 2
OUTPUT
1 1+2 2
OUTPUT
1 1+2 2
OUTPUT
1 1+2 2
OUTPUT
1 1+2 2
OUTPUT
1 1+2 2
SIG SIG SIG SIG SIG SIG SIG SIG SIG SIG
LEVEL LEVEL LEVEL LEVEL LEVEL LEVEL LEVEL LEVEL LEVEL LEVEL LEVEL
2
3
456
7
8
10 0
19
2
3
456
7
8
10 0
19
2
3
456
7
8
10 0
19
2
3
456
7
8
10 0
19
2
3
456
7
8
10 0
19
2
3
456
7
8
10 0
19
2
3
456
7
8
10 0
19
2
3
456
7
8
10 0
19
2
3
456
7
8
10 0
19
2
3
456
7
8
10 0
19
2
3
456
7
8
10 0
19
0
2
3
456
7
8
10 0
19
2
3
456
7
8
10 0
19
0
00
HIGH
LOW
HIGH
+3 0 -3 -8 -13
MODE MODE MODE MODE MODE MODE MODE MODE MODE
P.T.T 1
CHIME
MASTER
1
LOW
MASTER
2
PRIORITY2
PRIORITY3
PRIORITY4
LINE
MIC
POWER
MASTER VOLUME
1
2
MASTER VOLUME
LINE
MIC
LINE
MIC
LINE
MIC
LINE
MIC
LINE
MIC
LINE
MIC
LINE
MIC
LINE
MIC
MIC/LINE 2 MIC/LINE 3 MIC/LINE 4 MIC/LINE 5 MIC/LINE 6 MIC/LINE 7 MIC/LINE 8 MIC/LINE 9 MIC/LINE 10
ON
Alarm signal generator
Pre-Amplifier
CD player
Audio source equipment
CH 3
CH 4 T-651 Remote Sound Control
Microphone Microphone
T-214B Zone Microphone
CH 1
CH 2

17
9. BLOCK DIAGRAM
MCU
48V
INPUT1
INPUT1
GAIN
48V
INPUT2
INPUT2
GAIN
48V
INPUT3
INPUT3
GAIN
48V
INPUT4
INPUT4
GAIN
INPUT5
LINE1
LINE2
Audio matrix
RE M MIC MP3 PLAY
B ULE
DISPLAY
POW ER APM
POW ER APM
OUT1
100V/4R
OUT2
100V/4R
OUT3
100V/4R
OUT4
100V/4R
VCA
VCA
CH OUT
Elect ronic Volume
EMC IN
Functional selection
ER
ALARM
MUTE
1 2 1 2

18
10. SPECIFICATIONS
Power consumption
Size
Weight
484×395 88mm×
650W
7.3Kg
1200W
7.6Kg
Input sensitivity &
impedance
INPUT1-4 Input: 5mV-350 V±40 V/600Ω
LINE1-2 Input: 350mV±40mV/10KΩ, Unbalanced RCA
connection terminal;
EMC Input: 775mV/10KΩ, Unbalanced European
connection terminal
m m ;
Model
Output terminal 4×120W
Output Power 4-16Ω/100V
T-4120UC T-4240UC
4×240W
Distortion
Power supply
Phantom power
Protection
Cooling
Storage temperature
Relative humidity
Less than 0.5% (at 1KHz, 1/3 rated power)
48V (±2V)
High temperature, overload, short circuit
Forced cooling by fan
-20℃ +70℃~
<95%（No condensation）
Frequency response 80Hz-16KHz(+1dB,-3dB)
Output sensitivity &
source impedance CH1-4:1000mV/470Ω Unbalanced RCA connection terminal
Tone Bass:±10dB at 100Hz; Treble:±10dB at 10KHz
S/N Ratio INPUT LINE1-21-4:66dB; :80dB
~110V 50Hz
~120V 50Hz
~220V 50Hz
~230V 50Hz
~240V 50Hz
~110V 60Hz
~120V 60Hz
~220V 60Hz
~230V 60Hz
~240V 60Hz

MENU
TF
USB
-10 +10
dB -10 +10 dB -10 +10
dB -10 +10 dB -10 +10
dB -10 +10 dB -10 +10
dB -10 +10
dB
V+ MODEV
CH1
T- 42 40 UC
CLASS D POWER
AMPLIFIER
MIN MAX
PROT
CLIP
SIG
4-16Ω
100V
4-16Ω
PO WE R
CH2 CH3 CH4
100V
PROT
CLIP
SIG
MIN MAX MIN MAX MIN MAX
INPUT1 INPUT2 INPUT3 INPUT4 LINE2
MIN MAX
LINE1
MIN MAXMIN MAXMIN MAXMIN MAXMIN MAX
19
6
84
25 370
84
436
88
94
484
UNIT:mm
UNIT:mm
100
Over
100
Over
Over
100
11. DIMENSIONAL DIAGRAM
~23 0V 50Hz
OUT PUT
INPU T1
GAIN
INP UT 1
G+
-
INPU T2
GAIN
INPU T3
GAIN
INPU T4
GAIN
REM OT E
REM M IC PA NEL
FM ANT
G+
EMC I N
ALA RM
MUT E
CH1
CH3 CH2
CH4 INP UT 4
G+
-
INP UT 2
G+
-
INP UT 3
G+
-
CH4
+ +
- -
CH3
CH2
+ +
- -
CH1
INPU T1 Prio rty INPU T2 Prio rty INPU T3 Prio rty INPU T4 Prio rty
1 2 345 6
CH1/ CH2 :4-1 6Ω CH3/ CH4 :4-1 6Ω
INPU T1 Phan tom INPU T2 Phan tom INPU T3 Phan tom INPU T4 Phan tom
CH1- REM OTE CH2- REM OTE CH3- REM OTE CH4- REM OTE
1 2 3
OFFO N
5 6 78
4
DIP ON O N DIP
G
2
1
100V/4-16Ω
100V/4-16Ω
C
D
AUD IO OUTP UT
CH1CH2
CH3
CH4
LIN E1LIN E2
A
B
BT ANT
MENU
TF
USB
-10 +10
dB -10 +10 dB -10 +10
dB -10 +10 dB -10 +10
dB -10 +10 dB -10 +10
dB -10 +10
dB
V+ MODEV
CH1
T-4 24 0UC
CLASS D POWER
AMPLIFIER
MIN MAX
PROT
CLIP
SIG
4-16Ω
100V
4-16Ω
POW ER
CH2 CH3 CH4
100V
PROT
CLIP
SIG
MIN MAX MIN MAX MIN MAX
INPUT1 INPUT2 INPUT3 INPUT4 LINE2
MIN MAX
LINE1
MIN MAXMIN MAXMIN MAXMIN MAXMIN MAX

PUBLIC ADDRESS SYSTEM
Version 0.1