Comm-Tec MMA220 User Manual Download Page 1

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Mini Digital Amplifier, with MIC Mixer and EQ

MMA220

Mini Digital Amplifier, with EQ/Mixer

Index:

General Instruction ................................................................ 2

Product Picture....................................................................... 2

Features .................................................................................. 3

Specification .......................................................................... 4

Audio Connection .................................................................. 5

Buttons Controlling ............................................................... 6

RS232 Communication Protocol ........................................... 8

System Diagram................................................................... 10

Panel Drawing ..................................................................... 11

USER MANUAL

Summary of Contents for MMA220

Page 1: ...220 Mini Digital Amplifier with EQ Mixer Index 1 General Instruction 2 2 Product Picture 2 3 Features 3 4 Specification 4 5 Audio Connection 5 6 Buttons Controlling 6 7 RS232 Communication Protocol 8...

Page 2: ...ith EQ control and MIC mixer function It is compact size but powerful functions including the bridge connection dual mono EQ control microphone mixer etc It has a good application in different places...

Page 3: ...the audio and MIC input and reducing the power consumption when there is no inputs coming Two stereo audio inputs switchable by button remote or RS232 Volume Bass Treble controllable by buttons or RS2...

Page 4: ...pole Input Impedance 10K Output Impedance 50 stereo 4 8 Amplifier Audio General Frequency Response 20Hz 20KHz CMRR 70dB 20Hz 20KHz SNR 80dB at maximum output Bandwidth 20Hz 25KHz Stereo Channel Separ...

Page 5: ...the picture below 5 2 Bridge connection 1x40Watt 8Ohm The MMA220 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...

Page 6: ...oth of the outputs are showing the same mono audio The connection is 6 Buttons Controlling The buttons provides the control of volume EQ control and switching 6 1 Audio switching There are two switcha...

Page 7: ...e 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 sele...

Page 8: ...MIC Mute MIC 2A0 Mute audio of line out Mute LIN 0A1 UnMute 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...

Page 9: ...Treble of LINE 04 Notice 1 The letter inside bracket is the variable code which is the changeable 2 The bracket is not included to the RS232 commands 3 Any dot after the letters is part of the comman...

Page 10: ...Mini Digital Amplifier with MIC Mixer and EQ 10 8 System Diagram 2x20Watt 4Ohm Looping connection 1x40Watt 8Ohm...

Page 11: ...Mini Digital Amplifier with MIC Mixer and EQ 11 9 Panel Drawing Unit mm...