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ITC T-60 - User Manual

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OPERATION MANUAL
T-60
T-120
T-240
T-350
T-550
T-650
MIXER AMPLIFIER
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
2
PROTTEMP
4
6
8
10 12
OUTPUT LEVEL
POWER
MIC 1
5
0
1
2
3
4 6
7
8
9
10
BASS
0
-5
-4
-3
-2
-1 +1
+2
+3
+4
+5
TREBLE
0
-5
-4
-3
-2
-1 +1
+2
+3
+4
+5
5
0
1
2
3
4 6
7
8
9
10
MIC 3
AUX 1
5
0
1
2
3
4 6
7
8
9
10
AUX 2
MIC 1
MIC 2
5
0
1
2
3
4 6
7
8
9
10
5
0
1
2
3
4 6
7
8
9
10
MASTER
5
0
1
2
3
4 6
7
8
9
10
ON
OFF
MIXER AMPLIFIER
T-60
2
PROTTEMP
4
6
8
10 12
OUTPUT LEVEL
POWER
MIC 1
5
0
1
2
3
4 6
7
8
9
10
BASS
0
-5
-4
-3
-2
-1 +1
+2
+3
+4
+5
TREBLE
0
-5
-4
-3
-2
-1 +1
+2
+3
+4
+5
5
0
1
2
3
4 6
7
8
9
10
MIC 3
AUX 1
5
0
1
2
3
4 6
7
8
9
10
AUX 2
MIC 1
MIC 2
5
0
1
2
3
4 6
7
8
9
10
5
0
1
2
3
4 6
7
8
9
10
MASTER
5
0
1
2
3
4 6
7
8
9
10
ON
OFF
MIXER AMPLIFIER
T-120
2
PROTTEMP
4
6
8
10 12
OUTPUT LEVEL
POWER
MIC 1
5
0
1
2
3
4 6
7
8
9
10
BASS
0
-5
-4
-3
-2
-1 +1
+2
+3
+4
+5
TREBLE
0
-5
-4
-3
-2
-1 +1
+2
+3
+4
+5
5
0
1
2
3
4 6
7
8
9
10
MIC 3
AUX 1
5
0
1
2
3
4 6
7
8
9
10
AUX 2
MIC 1
MIC 2
5
0
1
2
3
4 6
7
8
9
10
5
0
1
2
3
4 6
7
8
9
10
MASTER
5
0
1
2
3
4 6
7
8
9
10
ON
OFF
MIXER AMPLIFIER
T-240
MIC 1
5
0
1
2
3
4 6
7
8
9
10
BASS
0
-5
-4
-3
-2
-1 +1
+2
+3
+4
+5
TREBLE
0
-5
-4
-3
-2
-1 +1
+2
+3
+4
+5
5
0
1
2
3
4 6
7
8
9
10
MIC 3
AUX 1
5
0
1
2
3
4 6
7
8
9
10
AUX 2
MIC 1
MIC 2
5
0
1
2
3
4 6
7
8
9
10
5
0
1
2
3
4 6
7
8
9
10
MASTER
5
0
1
2
3
4 6
7
8
9
10
ON
OFF
2
PROTTEMP
4
6
8
10 12
OUTPUT LEVEL
POWER
MIXER AMPLIFIER
T-650
MIC 1
5
0
1
2
3
4 6
7
8
9
10
BASS
0
-5
-4
-3
-2
-1 +1
+2
+3
+4
+5
TREBLE
0
-5
-4
-3
-2
-1 +1
+2
+3
+4
+5
5
0
1
2
3
4 6
7
8
9
10
MIC 3
AUX 1
5
0
1
2
3
4 6
7
8
9
10
AUX 2
MIC 1
MIC 2
5
0
1
2
3
4 6
7
8
9
10
5
0
1
2
3
4 6
7
8
9
10
MASTER
5
0
1
2
3
4 6
7
8
9
10
ON
OFF
2
PROTTEMP
4
6
8
10 12
OUTPUT LEVEL
POWER
MIXER AMPLIFIER
T-550
MIC 1
5
0
1
2
3
4 6
7
8
9
10
BASS
0
-5
-4
-3
-2
-1 +1
+2
+3
+4
+5
TREBLE
0
-5
-4
-3
-2
-1 +1
+2
+3
+4
+5
5
0
1
2
3
4 6
7
8
9
10
MIC 3
AUX 1
5
0
1
2
3
4 6
7
8
9
10
AUX 2
MIC 1
MIC 2
5
0
1
2
3
4 6
7
8
9
10
5
0
1
2
3
4 6
7
8
9
10
MASTER
5
0
1
2
3
4 6
7
8
9
10
ON
OFF
2
PROTTEMP
4
6
8
10 12
OUTPUT LEVEL
POWER
MIXER AMPLIFIER
T-350

Table of Contents

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Do you have a question about the ITC T-60 and is the answer not in the manual?

Overview

  1. Function Description
  2. Important Technical Specifications (Summarized for 2U and 3U models)
  3. Rated Power Output
  4. Speaker Outputs
  5. Input Sensitivity/Impedance
  6. Tone Control
  7. Frequency Response
  8. S/N Ratio
  9. Total Harmonic Distortion (T.h.d)
  10. Crosstalk
  11. Muting Function
  12. Power Requirements
  13. Power Consumption
  14. Dimensions (mm)
  15. Net Weight
  16. Usage Features
  17. Maintenance Features

The ITC series of public address mixer amplifiers are designed for various public address applications, offering a range of power outputs and versatile input/output options. These amplifiers are available in power ratings from 60 to 650 watts, catering to different sound system requirements.

Function Description:

The primary function of these units is to amplify audio signals for public address systems. They integrate mixing capabilities, allowing for the combination and control of multiple audio sources. Key features include:

  • Audio Inputs: The amplifiers support a variety of audio inputs, including balanced MIC inputs, AUX level inputs, and EMC (priority) level inputs.
  • Output Options: They provide transformer-isolated speaker outputs for 100V/70V line systems, as well as low impedance outputs for 4-16 ohms speakers.
  • Priority Functionality: A crucial feature is the EMC (Emergency) input, which has priority over all other inputs except MIC 1. This ensures that emergency announcements can override other audio sources. MIC 1 also has a first priority over other inputs, with an adjustable mute level control (0-30dB, 30dB being the original setting).
  • Volume and Tone Control: Individual volume controls are provided for MIC and AUX inputs, along with Bass, Treble, and Master volume controls to fine-tune the overall sound.
  • Monitoring: Power and protection indicators, along with 6-segment output level meters, allow for easy monitoring of the amplifier's status and output levels.

Important Technical Specifications (Summarized for 2U and 3U models):

Rated Power Output:

  • T-60: 60W
  • T-120: 120W
  • T-240: 240W
  • T-350: 350W
  • T-550: 550W
  • T-650: 650W

Speaker Outputs:

  • 4-16 Ohms, 70V/100V line.
  • Note: The 4-16 Ohm and 70V/100V terminals cannot be used simultaneously.

Input Sensitivity/Impedance:

  • MIC 1.2.3: 5mV/600 Ohms Unbalanced TRS input
  • MIC2.3:LINE: 775mV/10KOhms, Unbalanced RCA input
  • AUX 1.2: 350mV/10KOhms, Unbalanced RCA input
  • EMC: 775mV/10KOhms, Unbalanced EMC input

Tone Control:

  • Bass: ±10dB at 100Hz
  • Treble: ±10dB at 10KHz

Frequency Response:

  • 50Hz~16KHz

S/N Ratio:

  • MIC 1.2.3: 66dB
  • AUX 1.2: 80dB

Total Harmonic Distortion (T.h.d):

  • Less than 0.5% at 1KHz, 1/3 rated power

Crosstalk:

  • ≤ 50dB

Muting Function:

  • MIC 1 over other input signals with 0~30dB attenuation (except MIC 1)

Power Requirements:

  • ~220-240V 50/60Hz (Specific voltage and frequency values on the machine prevail).

Power Consumption:

  • T-60: 100W
  • T-120: 200W
  • T-240: 400W
  • T-350: 500W
  • T-550: 750W
  • T-650: 950W

Dimensions (mm):

  • 2U Models (T-60, T-120, T-240): 484 x 335 x 88
  • 3U Models (T-350, T-550, T-650): 484 x 385 x 132

Net Weight:

  • T-60: 7.1Kg
  • T-120: 9.3Kg
  • T-240: 16.6Kg
  • T-350: 18.5Kg
  • T-550: 22.2Kg
  • T-650: 23.5Kg

Usage Features:

  • Front Panel Controls:

    • MIC1 Input: 6.3 Microphone jack input.
    • MIC1/MIC2/MIC3 Volume Control: Adjusts microphone input levels.
    • AUX1/AUX2 Volume Control: Adjusts auxiliary input levels.
    • BASS/TREBLE: Rotary controls to adjust bass and treble response.
    • MASTER: Master volume control for overall signal level.
    • POWER SWITCH: On/Off toggle for the unit.
    • POWER LED: Indicates when the unit is turned on.
    • LEVEL INDICATORS: 6 output level meters for visual monitoring.
    • PROT (Protection) Indicator: Lights up when the machine is in protection status (overheating, overload, direct current). It is off during normal operation.
    • TEMP (Temperature) Indicator: Lights up when the machine is overloaded and overheated. It is off during normal operation.

  • Rear Panel Connections:

    • AC POWER INPUT: For connecting to the main power supply.
    • SPEAKER TERMINALS: COM (common/negative/ground), 4-16Ω, 70V, and 100V outputs for connecting speakers.
    • EMC INPUT: Emergency alarm signal input with priority.
    • MUTE: Potentiometer to adjust mute level.
    • MIC2/MIC3: Unbalanced MIC inputs.
    • MIC2 LINE/MIC3 LINE: Unbalanced line inputs.
    • AUX1/AUX2: Unbalanced Aux input jacks.
    • MIX OUT: Mixed output for connecting to subsequent equipment.
    • VENTILATION: Cooling fan and vents to prevent overheating.
    • SPARED (BATTERY) POWER INTERFACE: Available on some models (e.g., +24V versions) for battery backup.

Maintenance Features:

  • Protection Circuitry: The amplifiers include protection features against overheating, short circuits, and overcurrent, indicated by the PROT and TEMP LEDs.
  • Cooling System: A built-in cooling fan automatically activates when the internal power module temperature reaches 55 degrees Celsius to prevent overheating.
  • Troubleshooting Guidance: The manual provides a table for excluding errors, addressing common issues like no power, no voice output, or alarming signals, and suggesting causes such as wrong connections, blown fuses, or protection status.
  • Safety Precautions: Emphasizes the importance of proper installation, handling of power cords, and avoiding exposure to moisture or extreme conditions to prevent fire, electric shock, and damage. It also advises against opening the unit case due to high voltage components and recommends professional servicing.
  • Ventilation: Proper ventilation is crucial; users are advised to keep all sides of the unit at least 10 cm away from objects that might obstruct airflow to maintain internal temperature.
  • Cleaning: Contacting an ITC dealer for cleaning is recommended to prevent dust accumulation, which can lead to fire or damage. Periodic cleaning of the power supply plug and AC outlet is also advised.

ITC T-60 Specifications

General IconGeneral
BrandITC
ModelT-60
CategoryAmplifier
LanguageEnglish

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