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AVG-MA1 

 

 

 

 
1.1 Features 

 

2x20Watt@4Ohm as the default amplifier output.  

 

Bridge connection function. The user can switch the MA1 to be 1x40Watt@8Ohm using the  
bridge connection. 

 

Dual-mono function. The user can sum the stereo audio to dual mono audio. 

 

Microphone mixer function. The microphone will be mixed with the line audio output, 
with independent level control. 

 

48volt microphone power available at Mic Input. 

 

Ducking power technology. It monitor’s  the incoming audio and MIC input, and 
reduces the power consumption when there is no audio present. 

 

Two stereo audio inputs, switchable by panel button or RS232. 

 

Volume/Bass/Treble controllable by panel buttons or RS232 

 

Line audio output, with adjustable volume. 

 

Optional control solution, by IR remote or volume panel. 

 

RS232 controlling built in with smart feedback. 

 

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

 

Internal international power supply (100Volt~240Volt AC, 50/60Hz) for worldwide 
compatibility. 

 

Fast switching speed. 

 

LED indicator, for power and working status. 

 

 

 

 

 

 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

Summary of Contents for AVG-MA1

Page 1: ... incoming audio and MIC input and reduces the power consumption when there is no audio present Two stereo audio inputs switchable by panel button or RS232 Volume Bass Treble controllable by panel buttons or RS232 Line audio output with adjustable volume Optional control solution by IR remote or volume panel RS232 controlling built in with smart feedback Antistatic case design providing good protec...

Page 2: ...tion instruction only and not to be used in a maintenance capacity The functions described in this version are current till 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 ...

Page 3: ...be exposed to 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 v...

Page 4: ...C mixer function It is compact in size but incorporates powerful functions including the bridge connection dual mono EQ control microphone mixer etc It is extremely useful in applications including classroom small meeting rooms lecture halls bars pubs etc Front Panel Rear Panel Top Panel ...

Page 5: ...hnology It monitor s the incoming audio and MIC input and reduces the power consumption when there is no audio present Two stereo audio inputs switchable by panel button or RS232 Volume Bass Treble controllable by panel buttons or RS232 Line audio output with adjustable volume Optional control solution by IR remote or volume panel RS232 controlling built in with smart feedback Antistatic case desi...

Page 6: ...aptive Screw Connector 1 x RS232 Cable with Phoenix Connector 1 x Power adapter DC24V 4 x Plastic Feet 1 x Power Cord 1 x User manual Note Please confirm that the product and the accessories are all included if not please contact your dealer ...

Page 7: ... 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 3 3 Dual mono output The MA1 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 1x40Watt 8Ohm 2x20Watt 4Ohm Swi...

Page 8: ...AVG MA1 3 4 System Diagram Switching to the MONO Connecting the four pins like this 2x20Watt 4Ohm Looping connection 1x40Watt 8Ohm ...

Page 9: ...line volume and Microphone volume can be controlled by the buttons allowing the user to create a mixed Audio Output The Mic Volume Line volume Line bass Line treble is first selected by the left function select button Up Down Mute is then possible by pressing the right hand function buttons Please refer to the picture below For example to turn up the line volume you should select the LINE first an...

Page 10: ...dio 1A0 Mute audio of MIC Mute MIC 2A0 Mute audio of line out Mute LIN 0A1 Un Mute Audio Unmute Audio 600 Checking the working status A 1 1 Volume 30 Bass 00 Treble 00 601 MIC volume up Volume of MIC 51 602 MIC volume down Volume of MIC 51 603 Line volume up Volume of LINE 51 604 Line volume down Volume of LINE 51 605 Bass level up Bass of LINE 04 606 Bass level down Bass of LINE 04 607 Treble lev...

Page 11: ...s in total Bass of LINE 04 9 x x Preset the treble level xx is ranging from 00 to 08 9 increments in total Treble of LINE 04 Notice 1 The letter inside the bracket is the variable code which is the variable 2 The bracket is not included into the RS232 commands Example 1 Switching input 2 to the line out We should send the RS232 command 2A1 Example 2 Turning up the volume of line audio We should se...

Page 12: ...uency Response 20Hz 20KHz CMRR 70dB 20Hz 20KHz SNR 80dB at maximum output Bandwidth 20Hz 25KHz Stereo Channel Separation 75dB 20Hz to 20KHz THD Noise 1 1KHz 0 3 20KHz at nominal level Voltage Gain 32dB Power Output 20 Watts X 2 4 Ohms Control Parts Serial Control Port RS 232 9 pin female D connector Pin Configurations 2 TX 3 RX 5 GND IR Remote Optional IR remote Front Panel Control Optional mounta...

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