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PA2B

Mini Digital Amplifier with EQ/Mixer

USER MANUAL

Version: PA2B2012V1

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Summary of Contents for PA2B

Page 1: ...PA2B Mini Digital Amplifier with EQ Mixer USER MANUAL Version PA2B2012V1 ...

Page 2: ... Amplifier with MIC Mixer and EQ 2 Table of Contents 1 Introduction 3 2 Features 3 3 Specification 4 4 Audio Connection 5 5 Buttons Control 7 6 RS232 Communication Protocol 9 7 System Diagram 11 8 Panel Drawing 12 ...

Page 3: ...tion function User can switch the PA2B to be 1x40Watt 8Ohm by bridge connection 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 MIC port can support balance unbalance signal suppress the external noise ef...

Page 4: ...0Ω stereo 4 8Ω Amplifier Audio General Frequency 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 2x20 Watts 4 Ohms Control Function RS232 Control RS 232 9 pin female D connector Pin Configurations 2 TX 3 RX 5 GND IR Remote Optional IR remo...

Page 5: ... in the regular way As the picture below 4 1 2 Bridge connection 1x40Watt 8Ohm The PA2B 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 Switching to the STEREO Connecting the four pins like this Connecting the two pins like this Switching to t...

Page 6: ...fferent connections as the picture below 4 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 NOTICE In this mode only condenser microphone can be connected with 4 2 2 MIC input When the switch turns to MIC the mic...

Page 7: ...ing with normal audio or wireless microphone output There are two different connections 1 Unbalanced connection a connects to ground and connects to signal b connects to ground and connects to signal 2 Balanced connection connects to positive connects to negative and connects to ground 5 Buttons Control The buttons provides the control of volume EQ control and switching 5 1 Audio switching There a...

Page 8: ...olume 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 press the button Firstly to select the function from this menu Then to turn down up the level or mute the output ...

Page 9: ...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 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 level up Treble of LINE 04...

Page 10: ...vel xx arranges from 00 to 08 9 degrees in total 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 commands Example 1 Switching the input 2 to the line out We should send the RS232 command 2A1 Example 2 Turning up the volume of line audio We should send the...

Page 11: ...Mini Digital Amplifier with MIC Mixer and EQ 11 7 System Diagram 2x20Watt 4Ohm Looping connection 1x40Watt 8Ohm ...

Page 12: ...ini Digital Amplifier with MIC Mixer and EQ 12 8 Panel Drawing Unit mm Remarks For any questions or problems please try to get help from your local distributor or email PTN at support PTN electronics com ...

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