PA2B - Syscomtec
Contents
1. y Speaker gt nd 2 OF a 2 _ 1x40Watt 8Ohm Speakers Speaker 11 Mini Digital Amplifier with MIC Mixer and EQ ELECTRONICS 9 Panel Drawing Unit mm 123 00 87 00 38 00 122. and connect to ground 2 Balanced connection connects to anode connects to cathode and connects to ground 6 Buttons Controlling The buttons provides the control of volume EQ control and switching 6 1 Audio switching There are two switchable stereo audio inputs one 2xRCA input and one 3 5mm jack input switchable through the buttons as below Source Selection Mini Digital Amplifier with MIC Mixer and EQ ELECTRONICS 6 2 Volume EQ controlling The line volume and Microphone 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 Select the function from Turn down up the level Or mute the line volume this menu in advance For example to turn up the line volume you should select the LINE first and then press the button e PTN Mini Digital Amplifier with MIC Mixer and EQ ELECTRONICS 7 RS232 Communication Protocol Baud rate 9600 Data bit 8 Stop bit 1 Parity bit none Switching the audio to input 1 Switching the audio to input 2 Mute audio of MIC Mute MIC Mute audio of line out Mute LIN UnMute Audio UnMute Audio 1 gt 1 Mute Audio of MIC and Line out Mute Audio Volume 30 Checking the working status Bass 00 Treble 00 601 MIC volume up
3. STEERED BRIDGE Speaker Speaker Connecting the four pins like this 5 1 Microphone input The microphone input of PA2B has three different modes and different modes use different connections as the picture below Input modes switch INPUTS 5 2 1 48V phantom power input When the switch turns to 48V the microphone input will provide 48V phantom power This is usually used for power supply for condenser microphone The connection is connects to anode connects to cathode and to ground NOTICE In this mode only condenser microphone can be connected with 5 2 2 MIC input When the switch turns to the microphone input is used for connecting with dynamic microphone There are two different connections 6 Mini Digital Amplifier with MIC Mixer and EQ ELECTRONICS 1 Unbalanced connection connects to signal and connect to ground a b connects to signal and connect to ground 2 Balanced connection connects to anode connects to cathode and connects to ground 5 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 signal and connect to ground a b connects to signal
4. Volume of MIC 51 1 gt 1 Volume 50 609 Initialization back to the default setting Bass 04 Treble 04 Mini Digital Amplifier with MIC Mixer and EQ ELECTRONICS 5 x x Preset MIC volume xx arranges from 00 to Volume of MIC 50 60 61 degrees in total 7 x x Preset line volume xx arranges from 00 to Volume of LINE 50 60 61 degrees in total 8 x x Preset the bass level xx arranges from 00 Bass of LINE 04 to 08 9 degrees in total 9 x x Preset the treble level xx arranges from 00 Treble of LINE 04 to 08 9 degrees in total 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 RS232 command 603 Example 3 Preset the MIC volume to be 21 degree We should send the RS232 command 521 Example 4 Checking the working status of PA2 We should send the RS232 command 600 10 rr Mini Digital Amplifier with MIC Mixer and EQ ELECTRONICS 8 System Diagram MIC DVO r b a Laptop 24 42 gt gt 2x20Watt 40hm Ss 2 f Rs232 5 control panel 7 aA 4 Looping connection
5. Hz 0 3 20KHz gt 75dB 20Hz to 20KHz THD Noise Separation nominal level Voltage Gain 32dB Power Output 2x20 Watts 4 Ohms RS 232 9 pin female D Serial Control Port Pin Configurations 2 3 5 connector IR Remote Optional IR remote TCP IP control by PTNET PTN s programmable interface NOTE All nominal levels are at 10 Mini Digital Amplifier with MIC Mixer and EQ ELECTRONICS 5 Audio Connection 5 1 Audio Output 5 1 1 Default output 2x20Watt 40hm The default output of amplifier is 2x20Watt 4Ohm So the user can connect the amplifier output in the regular way As the picture below Switching to the STEREO Speaker _ gt Speaker Connecting the four pins like this 5 1 2 Bridge connection 1x40Watt 8Ohm The PA2B has the bridge connection to double the output power at 1x40Watt 8Ohm lt 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 BRIDGE gt Speaker Connecting the two pins like this PT Mini Digital Amplifier with MIC Mixer and EQ ELECTRONICS 5 1 3 Dual mono output The PA2B 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 Switching to the MONO
6. Mini Digital Amplifier with MIC Mixer and EQ ELECTRONICS PA2B Mini Digital Amplifier with EQ Mixer Index 1 General INSWUCHION 2 2 Product PIC 2 Je ee eee ae eee 3 Be OCMC AION 4 5 Audio 5 6 Buttons Controlling 7 7 RS232 Communication 9 5 11 9 Panel 12 Mini Digital Amplifier with MIC Mixer and EQ ELECTRONICS 1 General Instruction PA2B is a small digital amplifier Class D with EQ control MIC mixer function It 15 compact size but powerful functions including the bridge connection dual mono EQ control microphone mixer etc has a good application in different places including classroom small meeting room lecture hall bar pub etc 2 Product Picture ront Pane Rear Panel Tal Top Panel PTN Mini Digital Amplifier with MIC Mixer and EQ ELECTRONICS 3 Features 2x20Watt 4Ohm as the default amplifier output Bridge connection function The user can switch the PA2 to be 1x40Watt 8Ohm by bridge connection Dual mono function The user can sum up the stereo audio to two times mono audio Microphone mixer function The microphone will be mixed to the line audio output and separately controlla
7. ble MIC input supports 48V phantom power condenser microphone available MIC port with balance switching can support balance unbalance signal suppress the external noise effectively Ducking power technology It keeps detecting the audio and MIC input and reducing the power consumption when there is no input coming Ultra low inrush current no need for power sequencing This allows multiple PA2B to be powered on simultaneously without overloading power circuits Convection cooled fan is not needed Two stereo audio inputs switchable by button remote RS232 Fast switching speed It is the high speed for the good performance Volume Bass Treble controllable by buttons or RS232 Line audio output with volume controllable Optional control by IR remote Extensibility It can be controlled by PTN panel WP8 8 WP19 optional function Antistatic case design providing good protection for long term and stable performance LED indicator for power and working status PTN Mini Digital Amplifier with MIC Mixer and EQ ELECTRONICS 4 Specification 2 stereo audio 1 amplifier 1 MIC 1 stereo audio 2 RCA 1 captive screw connector Input Connector 13 5mm jack Output Connector 13 5mm jack 1 captive screw connector Input Impedance gt 10KQ Output Impedance 500 4 8Q Amplifier Frequency 20Hz 20KHz CMRR gt 70dB 20Hz 20KHz Response 80dB at maximum output Bandwidth 20Hz 25KHz Stereo Channel 1 1K
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