ITC T-220AP Manual de usuario

MINI TWO CHANNEL MIXER AMP

T-220AP

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.

OPERATION MANUAL

PUBLIC ADDRESS SYSTEM

UNBALANCED

LEFT RIGHT

CHANNEL VOLUME

010

LIMITER

STEREO

BRIDGE

OFF ON

TREBLE

BASS

MIC

LINE

BALANCED BALANCED

010

LEFT RIGHT

BRIDGE

The minmum speaker impedance for stereo

(2 Channel operation )is 4 OHMs each.

The minimum speaker impedance for mono/

bridge is 8 OHMs.

If you connect and use the unit with lower speaker

Do not ground the speaker output terminals.

The speaker terminals may not be at ground

potential.

Introduction

Inspection/Warranty

Unpack and inspect the amplifier and its packaging.

If obvious physical damage is noticed ,contact the

carrier immediately to meke a damages claim.

Thank you for purchasing the mini Mixer Amplifier.

This unit is designed for powering speakers in

small environments.

We suggest saving the shipping carton and

packing material for safe transport of the unit.

To activate mono-bridge operation,press the

CONFIGURATION SWITCH slide switch in the

direction as required.

Bridge or Stereo Operation

Features

Class D high efficiency amplifier

2 Mic / line switchable inputs: 2 unbalanced

dual RCA auxiliary inputs and 2 balanced

Input 1 and input 2 volume controls,bass and

treble tone controls

2 channel outputs by phoenix connector,bridge

or stereo output two options,with bridge/stereo

switch

Built-in limiter for low noise and efficient operation,

with limiter on/off switch

DC 24 V power supply adapter is included

Smart compact size for tabletop or wall

mount design

NOTE:This manual assumes the user has a working

knowledge of:

Audio electronics

Balanced and unbalanced connections

Proper signal level setting

USER MANUAL

Impedance than what is listed above you will

damage the unit and possibly other equipment

that is connected to the machine.

mic/line switchable inputs by phoenix connectors

UNBALANCED

LEFT RIGHT

CHANNEL VOLUME

010

LIMITER

STEREO

BRIDGE

OFF ON

TREBLE

BASS

MIC

LINE

BALANCED BALANCED

010

LEFT RIGHT

BRIDGE

WARNING: DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE.

TO REDUCE THE RISK OF ELECTRIC SHOCK DO NOT REMOVE COVER.

NO USER SERVICABLE PARTS INSIDE.

REFER SERVICING TO QUALIFIED SERVICE PERSONNEL

INPUTS

Mini Two Channel Mixer Amp

2X20watts

T-220AP

RISQUE DE CHOC ELECTRIQUE

-NE PAS OUVRIR

AVIS:

RISK OF ELECTRIC SHOCK

DO NOT OPEN

SN:

OUTPUTS

DC 24V

OFF

PWR

STEREO

BRIDGE

LEFT RIGHT

UNBALANCED

LEFT RIGHT

CHANNEL VOLUME

010

LIMITER

STEREO

BRIDGE

OFF ON

TREBLE

BASS

MIC

LINE

BALANCED BALANCED

010

LEFT RIGHT

BRIDGE

OUTPUTS

DC 24V

OFF

PWR

STEREO

BRIDGE

LEFT RIGHT

UNBALANCED

LEFT RIGHT

CHANNEL VOLUME

010

LIMITER

STEREO

BRIDGE

OFF ON

TREBLE

BASS

MIC

LINE

BALANCED BALANCED

0 10

LEFT RIGHT

BRIDGE

USER MANUAL

Front Panel Layout

Rear Panel Layout

Schematic

1. 24V DV

For connection to power

supply.

2. Speraker Output

Barrier screw terminals

4. Limiter Switch

Switchs limiter circuit on

or off.

3. Bridge/Mono Switch selects

operation of stereo or mono

2. Channel Volume Control

Adjusts signal level from

line input to line/power

and speaker outputs.

1. Inputs

RCA line level and balance

barrier screw teminals.

bridge input and output

operation.

Speaker Outputs

775mV/10K

MIC Input 5mV/600

Frequency Response 50Hz-18KHz (+2dB)

Less than 1%at 1KHz

230 115 56

1/3 rated power

Better than 85dB

0.9

4-8

Connection/Operation Limiter

Specifications

Connect input sources such as CD player,DVD

player or projector outputs to the unit’s inputs.

Select bridge or stereo function.

The unit shipped in stereo mode. To select bridge

mode,slide in the switch until it locks into position.

Connect the outputs from the unit to your

speakers.The stereo and bridge outputs are

labeled on the sperker outputs of the unit.

We recommend selecting the LIMITER ON

function,but thecircuit may be disabled by

selecting theOFF position.

The limiter is a function that prevents very loud

signals from passing through it by limiting the

signal volume temporarily to a normal level.This

prevents damage to the speakers or the unit itself.

The limiter utilises a circuit that decreasws the

amount of very signals. It does not cut out all

potentially loud signal .Proper installation and

The limiters primary function is to help prevent

one time very loud s ignals such as a dropping

of a microphone or short loud parts of program

material.

Set up is crucial . If you are experiencing distortion,

turning the limiter on may help but it is not intended

for total dynamics control.

Line Input

THD

Supply Voltage

Dimensions(mm)

Efficiency

S/N Ratio

Weight

USER MANUAL

The holes in the sides of the unit

are for the attachment of a zip tie

(not included)for power cord strain

relief as required

WARNING: DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE.

TO REDUCE THE RISK OF ELECTRIC SHOCK DO NOT REMOVE COVER.

NO USER SERVICABLE PARTS INSIDE.

REFER SERVICING TO QUALIFIED SERVICE PERSONNEL

INPUTS

Mini Two Channel Mixer Amp

2X20watts

T-220AP

RISQUE DE CHOC ELECTRIQUE

-NE PASOUVRIR

AVIS:

RISK OF ELECTRIC SHOCK

DO NOT OPEN

SN:

Precautions for use

2.During amplifier working process,it cannot

be changed the work pattern of amplifiers or

the overload of speakers by random,or else,

it will damage the amplifier easily.Usually ,it

should confirm the work pattern.

4.Prohibit overload during amplifier connection.

As per rated power.

3.During amplifier working process,it cannot be

changed the plugs of every audio devices in

Simple Check and Handling

1.No power :Check whether the adapter is good

or not,whether the power plug or power wire is

2.No sound after connecting amplifier with speaker:

3.Too big noise : Check whether the connection

of the devices is good,whether it is with shield,

1.When amplifier is working , volume control

(Controlled on mixer)is from small to big,until

moderate.When close it,volume control (controlled

on mixer)is from big to small,then close it.

acoustic amplification system by random, including

the plug of mixer. Or else, it will easily cause pulse

signal,then from HPPMW by amplifier, until lead to

LNB of audio,make the LNB burned and amplifier

overload then destroy the amplifier.

good or not.If not,please change the power wire.

Then check whether the indicator of adapter is

on or not,whether there is 24V DC power output,

if no,please change a new Adapter.

Check whether the speaker is overload , and

simultaneously check whether the speak is

short circuit .Check whether there is output in

amplifier after the speaker is regular.l

whether it is overload,or whether the audio signal

is too big.

USER MANUAL

PUBLIC ADDRESS SYSTEM

VersionV0.2

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