PTN PA2 User Manual
Mini Digital Amplifier, with MIC Mixer and EQ
USER MANUAL
PA2
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
8. System Diagram ............................................................. 10
9. Panel Drawing ............................................................... 11
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Mini Digital Amplifier, with MIC Mixer and EQ
1. General Instruction:
PA2 is a small digital amplifier (Class-D), with 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, including classroom, small meeting room,
lecture hall, bar, pub etc.
2. Product Picture:
Front Panel
Rear Panel
Top Panel
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Mini Digital Amplifier, with MIC Mixer and EQ
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 controllable.
Ducking power technology. It keeps detecting 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 RS232
Line audio output, with volume controllable.
Optional control solution, by IR remote or volume panel.
RS232 controlling function, with smart feedback.
Extensibility: It can be controlled by PTN panel (WP18R & WP19), optional
function.
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. It is the high speed for the good performance.
LED indicator, for power and working status.
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Mini Digital Amplifier, with MIC Mixer and EQ
4. Specification
Audio Input Audio Output
Input
Input Connector
Input Impedance >10KΩ Output Impedance 50Ω/stereo, 4~8Ω/Amplifier
Audio General
Frequency
Response
SNR 80dB at maximum output Bandwidth 20Hz ~ 25KHz
Stereo Channel
Separation
Voltage Gain 32dB Power Output 20 Watts X 2 (4 Ohms)
Control Parts
Serial Control Port
IR Remote Optional IR remote Front Panel Control Optional mountable keypad
Options TCP/IP control by PTNET(PTN's programmable interface)
2 stereo audio,
1 MIC
2 RCA
1 3.5mm jack
1 6.5mm jack
20Hz ~ 20KHz CMRR >70dB@20Hz~20KHz
>75dB@20Hz to 20KHz THD + Noise
RS-232, 9-pin female D
connector
Output
Output Connector
Pin Configurations 2 = TX, 3 = RX, 5 = GND
1 Amplifier,
1 stereo audio
1 3.5mm jack
1 Captive screw connector, 4
pole
1%@1KHz, 0.3%@20KHz at
nominal level
NOTE: All nominal levels are at ±10%.
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