Techlogix TL-A80-20W Manuale utente

User Manual

TL-A80-20W

Mini Digital Amplifier

Version: TL-A80-20W _160627

TL-A80-20W User Manual

www.tlnetworx.com

Preface

Read this user manual carefully before using this product. Pictures shown in this manual

are for reference only, different model and specifications can be subject on real product.

This manual is only for operation instruction only, not for any maintenance use.

Trademarks

Product model and its logo are trademarks. Any other trademarks mentioned in this

manual are acknowledged as the properties of the trademark owner. No part of this

publication may be copied or reproduced without our prior written consent.

FCC Statement

This equipment generates, uses and can radiate radio frequency energy and, if not

installed and used in accordance with the instructions, may cause harmful interference

to radio communications. It has been tested and found to comply with the limits for a

Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to

provide reasonable protection against harmful interference in a commercial installation.

Operation of this equipment in a residential area is likely to cause interference, in which

case the user at their own expense will be required to take whatever measures may be

necessary to correct the interference

Any changes or modifications not expressly approved by the manufacture would void

the user’s authority to operate the equipment.

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SAFETY PRECAUTIONS

To i ns ur e th e b es t fro m t he pro du c t, p le a se re a d al l in s tr uc ti o ns c are fu l ly be fo re us in g

the device. Save this manual for further reference.

l Unpack the equipment carefully and save the original box and packing material for

possible future shipment

l Follow basic safety precautions to reduce the risk of fire, electrical shock and injury

to persons.

l Do not dismantle the housing or modify the module. It may result in electrical shock

or burn.

l Using supplies or parts not meeting the products’ specifications may cause damage,

deterioration or malfunction.

l Refer all servicing to qualified service personnel.

l To p reve nt fi re or s ho ck hazard, do not expose the unit to rain, moisture or install this

product near water.

l Do not put any heavy items on the extension cable in case of extrusion.

l Do not remove the housing of the device as opening or removing housing may

expose you to dangerous voltage or other hazards.

l Install the device in a place with fine ventilation to avoid damage caused by overheat.

l Keep the module away from liquids.

l Spillage into the housing may result in fire, electrical shock, or equipment damage. If

an object or liquid falls or spills on to the housing, unplug the module immediately.

l Do not twist or pull by force ends of the optical cable. It can cause malfunction.

l Do not use liquid or aerosol cleaners to clean this unit. Always unplug the power to

the device before cleaning.

l Unplug the power cord when left unused for a long period of time.

l Information on disposal for scrapped devices: do not burn or mix with general

household waste, please treat them as normal electrical wastes.

TL-A80-20W User Manual

Table of Contents

1.!Introduction ............................................................................................ 1!

1.1.!Introduction to TL-A80-20W .......................................................... 1!

1.2.!Features .......................................................................................... 1!

1.3.!Package List .................................................................................... 1!

2.!System Connection Introduction ............................................................. 2!

2.1.!Audio Output .................................................................................. 2!

2.1.1.!Default output: 2x20Watt@4Ohm ...................................... 2!

2.1.2.!Bridge connection: 1x40Watt@8Ohm ................................. 2!

2.1.3.!Dual-mono Output .............................................................. 3!

2.2.!Microphone input ........................................................................... 4!

2.2.1.!48V phantom power input ................................................... 4!

2.2.2.!MIC input ............................................................................ 4!

2.2.3.!LINE input ........................................................................... 4!

3.!Operation of the Control Panel and the IR Remote ................................. 5!

3.1.!Operation of the Control Panel ....................................................... 5!

3.1.1.!Audio switching ................................................................... 5!

3.1.2.!Volume/EQ control ............................................................. 5!

3.2.!Use of the IR Remote ...................................................................... 6!

4.!System Diagram ...................................................................................... 7!

5.!Communication Protocol and Command Codes ...................................... 8!

6.!Specification ............................................................................................ 9!

Panel Drawings ........................................................................................... 11 !

7.!Troubleshooting & Maintenance ........................................................... 12!

8.!After-sales Service ................................................................................ 13!

TL-A80-20W User Manual

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1. Introduction

1.1. Introduction to TL-A80-20W

The TL-A80-20W is a compact-size digital amplifier (Class-D) with 3 inputs (2 line in and

1 balanced MIC). It includes powerful functions, including output bridging, dual-mono

inputs, EQ control, microphone mixer etc.

1.2. Features

l 2x20Watt@4Ohm as the default amplifier output.

l Bridge output function. User can switch the TL-A80-20W to be 1x40Watt@8Ohm

by bridging.

l Two stereo audio inputs, switchable by buttons, IR remote & RS232.

l Volume/Bass/Treble controllable by buttons, IR remote & RS232.

l MIC input can support balanced/unbalanced signals.

l Variable line audio output on 3.5mm jack.

l Dual-mono summing. Stereo inputs can be summed to dual mono audio.

l MIC mixer function. The microphone will be mixed to the line audio output, and be

controlled separately.

l MIC input supports condenser mic (48V phantom power), dynamic MIC and wireless

MIC.

l Auto noise gate. It detects the audio of the MIC input, and will mute the channel

when there is no input.

l Ultra-low inrush current, no need for power sequencing. This allows multiple TL-

A80-20W amps to be powered on simultaneously without overloading power

circuits.

l Convection cooling, no fan needed.

l Antistatic case design: provides good protection for long-term and stable

performance.

1.3. Package List

Ø 1 x TL-A80-20W (mounting ears permanently affixed).

Ø 2 x Pluggable Terminal Blocks

Ø 1 x RS232 Cable

Ø 1 x Power Adapter

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Ø 1 x Power Cord

Ø 4 x Plastic Cushions

Ø 1 x User Manual

Notes

Ø The IR receiver, IR remote, and its battery are offered as an optional accessory (TL-

A8O-20W-IR)

Ø Please confirm if the product and the accessories are all included, if not, please

contact the reseller.

2. System Connection Introduction

2.1. Audio Output

2.1.1. Default output: 2x20Watt@4Ohm

The default output of amplifier is 2x20Watt@4Ohm, connect the amplifier output as

shown in the picture below:

2.1.2. Bridge connection: 1x40Watt@8Ohm

The TL-A80-20W has output bridging, to double the output power to

1x40Watt@8Ohm. It will sum the input left channel and input right channel to mono

output, and the power is up to 40Watt.

The bridging connections are:

Connect the four pins

to stereo speakers

Change the switch

to ‘STEREO”

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2.1.3. Dual-mono Output

TL-A80-20W also has the function of double-mono output. It can sum up the left and

right channel, to be the mono audio output. In this way, the both of the outputs are

showing the same mono audio.

The connection is:

Change the switch

to ‘BRIDGE”

Connect the two pins

to a single speaker

Change the switch

to ‘MONO’

Connect the four pins

to two speakers

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2.2. Microphone input

The microphone input of TL-A80-20W has three modes, and each different mode

requires a different connection:

2.2.1. 48V phantom power input

When the switch is moved to “48V”, the MIC input will provide 48V phantom power.

This is used to supply power to a condenser microphone. Connection is:

“+” connect to positive, “-” connect to negative and “” to ground.

Note: In this mode, only condenser microphone can be connected.

2.2.2. MIC input

When the switch is moved to “MIC”, the microphone input is used for connecting to a

dynamic microphone. There are two different connections:

1) Unbalanced connection:

“” connects to ground, and “+” connects to signal.

2) Balanced connection: “+” connects to positive, “-” connects to negative and “”

connects to ground.

2.2.3. LINE input

When the switch is moved to “LINE”, the microphone input is used to connect to a

standard ‘line’ audio or wireless microphone output. There are two different

connections:

1) Unbalanced connection:

“” connects to ground, and “+” connects to signal.

2) Balanced connection: “+” connects to positive, “-” connects to negative and “”

connects to ground.

Mic mode Switch

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3. Operation of the Control Panel and the IR Remote

3.1. Operation of the Control Panel

The buttons provide control of volume, EQ control, and switching.

3.1.1. Audio switching

There are two switchable stereo audio inputs, one 2xRCA input, and one 3.5mm jack

input, switchable via buttons as below:

3.1.2. Volume/EQ control

The line volume and MIC volume can be controlled by the buttons.

The MIC Volume/LINE volume/LINE bass/LINE treble are selected by the ‘select’ button,

and controlled up/down/mute by the ‘function’ buttons. Please check the picture below:

For example, to turn up the line volume, you should select the “LINE” first, and then

press the button “ ”.

ource

Selection

Select the

function first

from this

menu.

Tur n down/up

the level, or

mute the

output using

these buttons.

TL-A80-20W User Manual

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3.2. Use of the IR Remote

Notice: The IR remote, the IR receiver, and the battery of the IR remote are all offered as

an accessory (TL-A8O-20W-IR).

IR receiver, works in

conjunction with the IR

remote. Point the IR remote at

the IR receiver to control the

amp.

3.5mm jack, insert

into the special ‘IR’

socket (3.5mm) on

the amplifier.

Mute Mode:

MIC: Mute the

microphone.

LINE: Mute the line.

SPEAKER: Mutes all

inputs (MIC and LINE)

Use to transmit the

infrared signal sent by

the IR remote.

Audio Control Modes:

MIC: turn up/down the

microphone volume.

LINE: turn up/down the line

volume.

BASS: bass of line audio.

TREBLE: treble of line audio.

Audio Inputs

1: RCA stereo audio input.

2: 3.5mm jack

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