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Summary of Contents for infobit iSound PA20
- Page 1 PA20 Dual 20W Audio Amplifier...
- Page 2 Dual 20W Audio Amplfier Preface Read this user manual carefully before using this product. Pictures shown in this manual is for reference only, different model and specifications are subject to real product. This manual is only for operation instruction only, not for any maintenance usage. The functions described in this version are updated till April, 2020.
- Page 3 Dual 20W Audio Amplfier SAFETY PRECAUTIONS To ensure the best from the product, please read all instructions carefully before using the device. Save this manual for further reference. Unpack the equipment carefully and save the original box and packing material for ⚫...
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Page 4: Table Of Contents
Dual 20W Audio Amplfier Table of Contents 1. Product Introduction ....................1 1.1. Features ......................1 1.2. Package List ...................... 2 2. System Connection ..................... 3 2.1. Audio Output...................... 3 2.1.1. Default Output: 2x20Watt@4Ohm ............3 2.1.2. Bridge Connection: 1x40Watt@8Ohm ............ 3 2.1.3. -
Page 5: Product Introduction
Dual 20W Audio Amplfier 1. Product Introduction The Mini Digital Amplifier is a compact-size digital amplifier (Class-D) with 3 inputs (2 line in and 1 balanced MIC). It is integrated with powerful functions, including 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. -
Page 6: Package List
Dual 20W Audio Amplfier 1.2. Package List 1x Mini Digital Amplifier ⚫ 2x Pluggable Terminal Blocks ⚫ 1x RS232 Cable ⚫ 1 x Power Adapter ⚫ 1x Power Cord ⚫ 4x Plastic Cushions ⚫ 1x User Manual ⚫ Note: The IR remote and its battery are offered for charge separately. ⚫... -
Page 7: System Connection
Dual 20W Audio Amplfier 2. System Connection 2.1. Audio Output 2.1.1. Default Output: 2x20Watt@4Ohm The default output of amplifier is 2x20Watt@4Ohm, so user can connect the amplifier output in the regular way. As the picture below: 2.1.2. Bridge Connection: 1x40Watt@8Ohm The Mini Digital Amplifier has the bridge connection, to double the output power at 1x40Watt@8Ohm. -
Page 8: Microphone Input
Dual 20W Audio Amplfier 2.2. Microphone Input The microphone input of Mini Digital Amplifier has three modes, and different modes use different connections, as the picture below: 2.2.1. 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: “+”... -
Page 9: Panel Control
Dual 20W Audio Amplfier 3. Panel Control The buttons provide the control of volume/EQ control and switching. The following content introduces audio switching and EQ control in detail. 3.1. Audio Switching There are two switchable stereo audio inputs, one 2xRCA input, and one 3.5mm jack input, switchable through the buttons as below: ource Selection... -
Page 10: Ir Remote Control
Dual 20W Audio Amplfier 4. IR Remote Control Audio Inputs Use to transmit the infrared signal send by the IR 1: RCA dual-mono audio remote. input. 2: 3.5mm jack. Volume Control: Mute Mode: MIC: Volume up or down MIC: Mute microphone microphone audio. -
Page 11: System Diagram
Dual 20W Audio Amplfier 5. System Diagram... -
Page 12: Rs232 Command
Dual 20W Audio Amplfier 6. RS232 Command After setting all needed input and output devices according to the system connection introduction, connect control PC to the RS232 port, and then install the RS232 control software (e.g. docklight) into the control PC to send RS232 command to control the product. - Page 13 Dual 20W Audio Amplfier 61 degrees in total. 7[x][x]% Preset line volume, [xx] arranges from [00] to [60]. Volume of LINE: 50 61 degrees in total. 8[x][x]% Preset the bass level, [xx] arranges from [00] to [08]. Bass of LINE: 04 9 degrees in total.
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Page 14: Specifications
Dual 20W Audio Amplfier 7. Specifications Audio Input Input (2) Stereo Audios, (1) MIC (2) RCA, (1) 3.5mm Jack, Input Connector (1) Pluggable Terminal Block (3P, 3.81mm) Audio Output Output (1) Amplifier, (1) Stereo Audio (1) 3.5mm Jack, Output Connector (1) Pluggable Terminal Block (4P, 5.08mm) Audio Performance Input Impedance... -
Page 15: Troubleshooting & Maintenance
Dual 20W Audio Amplfier 8. Troubleshooting & Maintenance 1) When there is no output audio: Check if there is any signal at the input. ⚫ Check if there is any signal at the output. ⚫ We can check these by using an oscilloscope or a multimeter. If there is no signal input/output, maybe the input/output cables broken or the connectors loosen, please change for another cable. -
Page 16: Customer Service
Dual 20W Audio Amplfier 9. Customer Service The return of a product to our Customer Service implies the full agreement of the terms and conditions hereinafter. There terms and conditions may be changed without prior notice. 1) Warranty The limited warranty period of the product is fixed three years. 2) Scope These terms and conditions of Customer Service apply to the customer service provided for the products or any other items sold by authorized distributor only.
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