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Summary of Contents for Key Digital KD-AMP220
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Page 1: Operating Instructions
KD-AMP220 2 Channel 20 Watt Per Channel, Compact Digital Audio Amplifier Operating Instructions The Experts in Digital Video Technology and Solutions ™... -
Page 2: Table Of Contents
FCC Statement ............14 How to Contact Key Digital . -
Page 3: Introduction
Introduction The KD-AMP220 is a 2x20 watt Class-D amplifier with 8 Ω speaker output ideal for installation in presentation spaces. Input connections accommodate microphone, line level balanced/unbalanced, and line level 3.5mm stereo analog audio inputs. The output is a mix of audio from the microphone input and the selected audio input. -
Page 4: Quick Setup Guide
1. Begin with the KD-AMP220 unit and all input/output devices turned off and power cables removed. 2. Connect audio output of source devices to the desired input of KD-AMP220 using high-quality audio cables. 3. Connect a microphone to the microphone input connector. -
Page 5: Application Examples
Application Examples Basic Laptop Music Streamer KD-AMP220 Ceiling Speakers Advanced Apple TV Podium Video Conferencing Podium Laptop VGA Laptop KD-MC1000 RS-232 IR/RS-232 Master Controller KD-AMP220 KD-MLV4x2Pro Ceiling Speakers Display KD-X222PO CAT5e/6 Camera HDMI... -
Page 6: Connections, Buttons And Leds
Connections, Buttons and LEDs Rear Panel Input Connections and Selector 1. Microphone Input and 48V Phantom Power Mode Switch › a. Pin 1: + » b. Pin 2: Ground » c. Pin 3: - » 2. Phantom (48V) slide switch ›... -
Page 7: Front Panel
6. Speaker Output › Speaker Mode Pin 1 Pin 2 Pin 3 Pin 4 STEREO Left Channel+ Left Channel- Right Channel+ Right Channel- MONO Mono+ Mono- Mono+ Mono- BRIDGE Mono+ Mono- 7. Speaker Output Mode Selector › a. STEREO: 2 channels 20W@4ohm speakers »... - Page 8 Illuminated if selected control position is muted/un-muted » 5. USB Service port › a. Firmware update should only be applied if advised by Key Digital’s Technical Support » team. Factory Default via front panel: To factory default unit, press & hold Input + Control buttons ›...
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Page 9: Speaker Wiring
Speaker Wiring L/R Stereo 4Ω Load with 4Ω Speakers: L/R Stereo with Parallel Speakers 4Ω Load with 10W 8Ω Speakers: Bridged Audio Option 8Ω Load with 8Ω Speakers:... -
Page 10: Ir Remote Control
Note: IR Control must be achieved via included IR sensor › only. There is no built-in IR sensor. RS-232 Control KD-AMP220 gives access to all software functions when used controlled by RS-232 RS-232 cable pinout Baud Rate = 9600 bits per second ›... - Page 11 Volume and EQ Settings Description Command Command Example and Response SPI01AVU Turn Up the Volume of SPI01AVU Volume of MIC Audio [51] turn Up MIC Audio Note: [xx] = Level 00 - 60 SPI01AVD Turn Down the Volume Volume of MIC Audio [51] turn Down SPI01AVD of MIC Audio Note: [xx] = Level 00 –...
- Page 12 Muting Description Command Command Example and Response SPO01AE Mute both MIC and SPO01AE LINE Audio Output Audio Mute Enabled SPO01AD Unmute both MIC and SPO01AD Line Audio Output Audio Mute Disabled SPI01AE Mute MIC Audio Only SPI01AE MIC Audio Mute Enabled SPI02AE Mute Line Audio Only SPI02AE...
- Page 13 The Help command “H” returns a full list of all possible RS-232 commands: KD-AMP220>H --------------------------------------------------- Key Digital Systems HELP --------------------------------------------------- KD-AMP220 F/W Version : V1.0.0 -- SPO01SA01 : Switch to Audio Input1 -- SPO01SA02 : Switch to Audio Input2 -- SPI01AE...
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Page 14: Specifications
Specifications I/O Connections Analog Inputs One (1) 6-pin Phoenix Connector; One (1) 3.5mm TRS Connector Microphone Input One (1) 3-pin Phoenix Connector Control (Front Panel) Push Button, Rotary Knob Control (Rear Panel) RS-232 via One (1) 3-pin Phoenix Connector; IR via One (1) 3.5mm TRS Connector Microphone 48V Phantom One (1) 2-Position Slide Switch Power Mode Switch... - Page 15 Chassis and Environmental Enclosure Painted Aluminum Dimensions (W x H x D) 8.661” x 1.299” x 4.094” (LxDxH) Net Weight 1.153 Lb Operating Temperature +32° to +104° F (0° to +40° C) Operating Humidity 20% to 90%, Non-condensing Storage Temperature +14°...
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Page 16: Important Product Warnings & Safety Instructions
Exposure to rain or moisture » Power Supply Use: You MUST use the Power Supply provided with your unit or you VOID the Key Digital Warranty and risk damage to your unit and associated equipment. ® FCC Statement This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. -
Page 17: How To Contact Key Digital
Please email any comments/questions about the manual to: E-mail: customersupport@keydigital.com › Warranty Information All Key Digital products are built to high manufacturing standards and should provide years of ® trouble-free operation. They are backed by a Key Digital Limited 3 Year Product Warranty Policy. http://www.keydigital.com/warranty.htm... - Page 20 , led by digital video pioneer Mike Tsinberg, ® develops and manufactures high quality, cutting-edge technology solutions for virtually all applications where high-end video and control are important. Key Digital ® is at the forefront of the video industry for Home Theater Retailers, Custom Installers, System Integrators, Broadcasters, Manufacturers, and Consumers.
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