Milestone Pro MP-A2B Manuale utente

MP-A2B

Mini Digital Amplifier

Version: MP-A2B_2016V1.0

User Manual

Mini Digital Amplifier

Preface

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

manual is for reference only, different model and specifications are subject to real

product.

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

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.

Mini Digital Amplifier

SAFETY PRECAUTIONS

To insure the best from the product, please read all instructions carefully before using

the device. Save this manual for further reference.

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

possible future shipment

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

to persons.

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

or burn.

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

deterioration or malfunction.

Refer all servicing to qualified service personnel.

To prevent fire or shock hazard, do not expose the unit to rain, moisture or install this

product near water.

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

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

expose you to dangerous voltage or other hazards.

Install the device in a place with fine ventilation to avoid damage caused by

overheat.

Keep the module away from liquids.

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.

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

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

the device before cleaning.

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

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

household waste, please treat them as normal electrical wastes.

Mini Digital Amplifier

Table of Contents

1.Introduction..................................................................................................................1

1.1.Introduction to MP-A2B .......................................................................................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.........................................................................................2

2.2.Microphone input.................................................................................................3

2.2.1.48V phantom power input.............................................................................3

2.2.2.MIC input ......................................................................................................3

2.2.3.LINE input.....................................................................................................3

3.Operation of the Control Panel and the IR Remote .....................................................4

3.1.Operation of the Control Panel............................................................................4

3.1.1.Audio switching.............................................................................................4

3.1.2.Volume/EQ controlling ..................................................................................4

3.2.Usage of the IR Remote......................................................................................5

4.System Diagram..........................................................................................................6

5.Communication Protocol and Command Codes..........................................................6

6.Specification.................................................................................................................8

7.Panel Drawing .............................................................................................................9

8.Troubleshooting & Maintenance ................................................................................10

9.After-sales Service.....................................................................................................11

Mini Digital Amplifier

1. Introduction

1.1.Introduction to MP-A2B

The MP-A2B is a compact-size digital amplifier (Class-D) with 3 inputs (2 line in and 1

balanced MIC). It is integrated with powerful functions, including bridge connection,

dual-mono, EQ control, microphone mixer etc.

It has a good application in different places, including classroom, small meeting room,

lecture hall, bar, pub etc.

1.2.Features

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

Bridge connection function. User can switch the MP-A2B to be 1x40Watt@8Ohm

by bridge connection.

Two stereo audio inputs, switchable by button, IR remote & RS232.

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

MIC port can support balance/unbalance signal, suppress the external noise

effectively.

Line audio output at 3.5mm jack, with volume controllable.

Dual-mono function. User can sum up the stereo audio to two times mono audio.

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

controlled separately.

MIC input supports 48V phantom power, dynamic MIC and wireless MIC.

Auto noise gate. It keeps detecting the audio and MIC input, will mute the output

when there is no input.

Ultra low inrush current, no need for power sequencing. This allows multiple

MP-A2B to be powered on simultaneously without overloading power circuits.

Convection cooler, fan is not needed.

Antistatic case design: providing good protection for long-term and stable

performance.

1.3.Package List

1 x MP-A2B (The mounting ears and MP-A2B are as a whole.)

2 x Pluggable Terminal Blocks

1 x RS232 Cable

1 x Power Adapter

1 x Power Cord

4 x Plastic Cushions

Mini Digital Amplifier

1 x User Manual

Notes：

The IR remote and its battery are offered for charge separately.

The IR receiver is also offered for charge.

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

contact with the dealers.

2. System Connection Introduction

2.1.Audio Output

2.1.1. Default output: 2x20Watt@4Ohm

The default output of amplifier is 2x20Watt@4Ohm, so user can connect the amplifier

output in the regular way. As the picture below:

2.1.2. Bridge connection: 1x40Watt@8Ohm

The MP-A2B has the bridge connection, to double the output power at

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

mono output, and the power is up to 40Watt.

The bridge connection is:

2.1.3. Dual-mono Output

The MP-A2B 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

Connecting the two pins, like this

Connecting the four pins, like this

Mini Digital Amplifier

showing the same mono audio.

The connection is:

2.2.Microphone input

The microphone input of MP-A2B has three modes, and different modes use different

connections, as the picture below:

2.2.1. 48V phantom power input

When the switch turns to “48V”, the MIC input will provide a 48V phantom power. This

is usually used for power supply for condenser microphone, Connection is:

“+” connects to positive, “-” connects to negative and “╧” to ground.

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

2.2.2. MIC input

When the switch turns to “MIC”, the microphone input is used for connecting with

dynamic microphone. There are two different connections:

1) Unbalanced connection:

“╧” connects to ground, and “-” connects to signal.

“╧” 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 turns to “LINE”, the microphone input is used for connecting with

normal audio or wireless microphone output. There are two different connections:

1) Unbalanced connection:

“╧” connects to ground, and “-” connects to signal.

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

Connecting the four pins, like this

Mini Digital Amplifier

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

connects to ground.

3. Operation of the Control Panel and the IR Remote

3.1.Operation of the Control Panel

The buttons provides the control of volume/EQ control and switching. The following

content introduces audio switching and EQ control in detail.

3.1.1. Audio switching

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

input, switchable through the buttons as below:

3.1.2. Volume/EQ controlling

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

The MIC Volume/LINE volume/LINE bass/LINE treble will be selected by the buttons,

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

Firstly to

select the

function

from this

menu.

Then to turn

down/up the

level, or

mute the

output.

Source

Selection

Mini Digital Amplifier

press the button “ ”.

3.2.Usage of the IR Remote

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

for charge.

IR receiver head, works in

conjunction with the IR

remote. Please point the IR

remote at the IR receiver

when use, to avoid getting out

of control as there is no signal

detected.

3.5mm jack, insert

it into the

specialized socket

(3.5mm) to connect

the IR receiver with

the amplifier

Mute Mode:

MIC: Mute the

microphone volume.

LINE: Mute the line

volume.

SPEAKER: Unmute

Use to transmit the

infrared signal send by

the IR remote.

Audio Controlling Modes

MIC: turn up/down the

microphone volume.

LINE: turn up/down the line

volume.

BASS: bass tuning

TREBLE: treble of line volume.

Audio Inputs

1: RCA dual-mono audio inputs

2: 3.5mm jack

Mini Digital Amplifier

4. System Diagram

DVD

Speaker2

MIC

Laptop

Speaker

Speaker1

Speaker3

RS232

control panel

MIC

Indice

Altri manuali Milestone Amplificatore

Milestone

Milestone MP-A250B Manuale utente

Manuali Amplificatore popolari di altre marche

ASTRO

ASTRO HVO V40 P Manuale utente

Marantz

Marantz SUPERSCOPE BLA-545 Istruzioni per il montaggio

NAD

NAD CI980 Manuale utente

Technics

Technics SE-CH770 Manuale utente

Harman Kardon

Harman Kardon HK6300 Manuale utente

NAD

NAD T975 Manuale utente

McIntosh

McIntosh MA6850 Manuale utente

Electro-Harmonix

Electro-Harmonix ENGLISH MUFF’N Manuale utente

Viatron

Viatron Autrix Manuale utente

GME

GME GA9800 Manuale utente

Atlas

Atlas CP700 Manuale utente

Roland

Roland KC-1000 Manuale utente

Pyle

Pyle PFMRA350BW Manuale utente

Advantage

Advantage S-250 Manuale utente

IRT Electronics

IRT Electronics DVA-3007 Manuale utente

Dimavery

Dimavery BA-100 Series Manuale utente

Sony

Sony XM-S400D Manuale utente

Schertler

Schertler ROY X Manuale utente