AVGear AVG-MA3 Manuale utente
AVG-MA3
The
MA3
is a 40W power amplifier (Cl
ass
-
D) with selectable 70V or 100V line output.
Features
Mono audio output at 40Watts.
Switchable between 70V and 100V.
Audio Ducking function.
16 ID codes for controlling different
AVG-MA3 amplifiers.
3-level MIC input, supports condenser
microphone, dynamic microphone and
wireless microphone (Line Level)
MIC port can support balanced or
unbalanced signal.
Two stereo audio inputs and one
digital audio input, switchable by panel
button, IR remote & RS232.
Volume/Bass/Treble controllable by
panel buttons, IR remote & RS232.
Convection cooled, fan is not needed
allowing for quiet running.
LED indicator, for power indication
and working status.
Antistatic case design to provide RF
Shielding for long-term, stable
performance.
AVG-MA3
PLEASE READ THIS PRODUCT MANUAL CAREFULLY
BEFORE USING THIS PRODUCT.
This manual is only for operation instruction only, and
not to be used in a maintenance capacity. The
functions described in this version are current as at
March 2015. Any changes of functions and
operational parameters will be updated in future
manual versions. Please refer to your dealer for the
latest product details.
Version 1.0 1/3/15
AVG-MA3
SAFETY OPERATION GUIDE
In order to guarantee the reliable operation of the equipment and safety of the
user, please abide by the following procedures in installation, use and
maintenance:
1. The system must be earthed properly. Please do not use two blade plugs
and ensure the alternating power supply ranges from 100v to 240v and from
50Hz to 60Hz.
2. Do not install the switcher in an environment where it will be exposed to
extreme hot or cold temperatures.
3. This unit will generate heat during operation, please ensure that you allow
adequate ventilation to ensure reliable operation.
4. Please disconnect the unit from mains power if it will be left unused for a
long time.
5. Please DO NOT try to open the casing of the equipment, DO NOT attempt to
repair the unit. Opening the unit will void the warranty. There are high
voltage components in the unitand attempting to repair the unit could result
in serious injury.
6. Do not allow the unit to come into contact with any liquid as that could result
in personal injury and product failure.
AVG-MA3
TABLE OF CONTENTS
Introduction ..............................................................................................................1
Introduction to the ........................................................................................1.1
System Applications.....................................................................................1.2
Features.......................................................................................................1.3
What’s in the Box.....................................................................................................2
Connecting the AVG-MA3........................................................................................3
Introduction to the Front Panel .....................................................................3.1
Introduction to the Rear Panel......................................................................3.2
Connection Diagram.....................................................................................3.3
Audio Signal Connection..............................................................................3.4
Audio Output...................................................................................3.4.1
Audio Inputs....................................................................................3.4.2
Usage Precautions.......................................................................................3.5
Operating the AVG-MA3 ..........................................................................................4
Operation of the Front Panel........................................................................4.1
Audio Switching..............................................................................4.4.1
Volume/EQ Control.......................................................................................4.2
Operating the IR Remote..............................................................................4.3
Operations with 3rd Party Control Software .................................................4.4
Connection with a Computer...........................................................4.4.1
Connection of RS232 Port..............................................................4.4.2
RS232 Communication Commands................................................4.4.3
Specifications...........................................................................................................5
Panel Drawing..............................................................................................5.1
Troubleshooting & Maintenance.............................................................................6
AVG-MA3
1. Introduction
1.1. Introduction to the AVG-MA3
AVG-MA3 is a 40 Watt power amplifier (Class-D) with a selectable 70V or 100V line
output. It has 2 stereo inputs (1x3.5mm jack for line in, 2xRCA for L&R), 1 digital
input & 1 balanced MIC. It is integrated with powerful functions, including audio
ducking, EQ control, MIC mixer etc, and MIC input supports 3 levels with condenser
MIC, dynamic MIC & Line audio input.
There a two main voltages, 70V and 100V used for different countries, with the AVG-
MA3 designed to integrate with both voltages.
1.2. System Applications
AVG-MA3 is a flexible small footprint amplifier finding applications in classrooms,
small meeting rooms, lecture halls, bars and hotels etc.
1.3. Features
Mono audio output at 40Watts.
Switchable between 70V and 100V.
Audio Ducking function.
16 ID codes for controlling different AVG-MA3 amplifiers.
3-level MIC input, supports condenser microphone, dynamic microphone and
wireless microphone (Line Level)
MIC port can support balanced or unbalanced signal.
Two stereo audio inputs and one digital audio input, switchable by panel button,
IR remote & RS232.
Volume/Bass/Treble controllable by panel buttons, IR remote & RS232.
Fast switching speed.
Convection cooled, fan is not needed allowing for quiet running.
LED indicator, for power indication and working status.
Antistatic case design to provide RF Shielding for long-term, stable performance.
AVG-MA3
2. What’s in the Box
1 x AVG-MA3
1 x Power adapter (DC 24V)
1 x Power Cord
2 x Mounting ears (separate from AVG-MA3)
1 x RS232 cable including Phoenix Connector
4 x Screws
4 x Plastic Feet
1 x User manual
Options:
1 x IR remote (not included, available separately)
1 x IR receiver (not included, available separately)
Note: Please confirm if the product and the accessories are all included, if not,
please contact your dealer.
AVG-MA3
3. Connecting the AVG-MA3
3.1. Introduction to the Front Panel
Front Panel
No.
Name
Function
①
Audio Input
Selection
To select the input audio source, after choosing the audio
source, the corresponding LED indicator will be on. No.1 is for
dual mono audio input (2 RCA connectors for L&R), No.2 is for
stereo audio input (3.5mm mini jack), and No.3 is for digital
optical audio input.
②
Audio
Control Adjust the volume of the MIC, Line, or the level of Bass and
Treble with this button.
③
Volume
Adjustment
To turn up/down or mute the corresponding audio.
: Turn down the volume
: Turn up the volume
MUTE: Mute the output
AVG-MA3
3.2. Introduction to the Rear Panel
Rear Panel
No.
Name
Function
①
Power
Indicator Indicates red when power is on.
②
Microphone
Input Port
3-pole captive screw connector for microphone input, the
slide switch to the right is to select the microphone input type,
including 48V (for condenser microphone), MIC (for dynamic
microphone) and LINE (for line audio).
③
Audio
Inputs 3.5mm mini jack for stereo audio input, it can be connected
with an audio source device such as DVD player.
④
ID Code 16 codes range from 0 to F (hexadecimal), works together
with the PC control software.
⑤
IR Port To connect with the IR receiver, works together with the IR
remote.
⑥
Power Port To connect with the power adapter (DC24V).
⑦
2 x RCA Dual-mono audio input, which can be connected with an
Audio source device such as a PC.
⑧
Digital
Audio
Input
Optical connector for digital audio input (PCM format), it can
be connected to a device’s optical port, such as a blue-ray
player.
⑨
RS232
3-pole captive screw connector for serial control, it can be
connected with a PC (Use a 3-pole captive to 9 pin female D
connector and serial control software) to control the AVG-
MA3.
⑩
Audio
Output To connect to 70V or 100V Speakers.
AVG-MA3
3.3. Connection Diagram
AVG-MA3
3.4. Audio Signal Connection
3.4.1. Audio Output
AVG-MA3 supports mono audio output, and the output voltage is 70V or alternatively
100V. With its dual-purpose design, it can be used for driving both common
standards. The end ‘COM’ connector is for grounding. The AVG-MA3 amplifier has a
mono audio output with a rated power at 40Watts, so the AVG-MA3 can be
connected with several speakers in parallel connection.
(Total power mustn’t exceed 40Watts).
The following figure shows us how to connect with the speakers. Here we take the
speakers 10Watt@8Ohms each as example.
40W Power Amplifier
Audio Output Connection
3.4.2. Audio Inputs
AVG-MA3 provides us with 2 stereo audio inputs, one microphone input and one
digital optical audio input. The following figure shows the audio input ports.
Slide Switch, to select the MIC input mode,
includes MIC (dynamic microphone), 48V
(condenser microphone) and LINE (normal
line audio or wireless microphone).
Indice
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