Key Digital KD-AMP220 Operating Instructions Manual Download Page 2

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Always follow the instructions provided in this Operating Manual.

Table of Contents

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Quick Setup Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Application Examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Connections, Buttons and LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Speaker Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

IR Remote Control. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

RS-232 Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Important Product Warnings & Safety Instructions: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

FCC Statement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

How to Contact Key Digital

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Warranty Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Summary of Contents for KD-AMP220

Page 1: ...2 Channel 20 Watt Per Channel Compact Digital Audio Amplifier KD AMP220 Operating Instructions The Experts in Digital Video Technology and Solutions ...

Page 2: ...ts Introduction 1 Quick Setup Guide 2 Application Examples 3 Connections Buttons and LEDs 4 Speaker Wiring 7 IR Remote Control 8 RS 232 Control 8 Specifications 12 Important Product Warnings Safety Instructions 14 FCC Statement 14 How to Contact Key Digital 15 Warranty Information 15 ...

Page 3: ...x of microphone and the selected audio input Signal Processing Variable volume level set for each input Variable volume bass and treble for output Inputs Microphone 3 pin balanced condenser dynamic 6 pin balanced stereo 3 5mm stereo Phantom Power 48V phantom power for integration with condenser microphones Outputs Pre amp line level 6 pin balanced speaker level Speaker Level Output Bridge stereo o...

Page 4: ...in stereo audio on the outputs 20 watts per output b MONO Stereo audio signals will be summed to dual mono signals on the outputs 20 watts per output c BRIDGE Stereo audio signals will be summed to a single high output audio output 40 watts total output 6 Connect speakers in accordance with above desired output mode Use high quality speaker wire See Speaker Wiring section for more information 7 Fo...

Page 5: ...kers Display Podium Mic VGA Laptop VGA L R HDMI HDMI HDMI HDMI L R L R KD MLV4x2Pro Master Controller IR RS 232 RS 232 KD MC1000 KD X222PO KD AMP220 CAT5e 6 Video Conferencing Camera Apple TV Laptop HDMI KD AMP220 CAT5e 6 Ceiling Speakers Mic Apple TV Music Streamer ...

Page 6: ...nser microphones b OFF Dynamic microphones 3 Balanced Unbalanced Analog Input 1 a Pin 1 Left b Pin 2 Left Ground c Pin 3 Left d Pin 4 Right e Pin 5 Right Ground f Pin 6 Right 4 L R Analog 3 5mm stereo Input 2 a Tip Left b Ring Right c Sleeve Ground Output Connections and Selector 5 Balanced Unbalanced Analog Audio Output a Pin 1 Left b Pin 2 Left Ground c Pin 3 Left d Pin 4 Right e Pin 5 Right Gro...

Page 7: ...nversion Unit Control Power 8 IR Sensor Input a Tip IR Sensor 5V Power b Ring IR Signal c Sleeve Ground 9 RS 232 a Pin 1 TxD b Pin 2 Ground c Pin 3 RxD 10 24V DC Power Input Front Panel 1 2 3 4 5 Input Connections and Selector 1 Input Source select button and LEDs 2 Control Button and LEDs a Used to select Volume or EQ control of Mic or Line inputs i Mic for volume control of MIC input ii Line for...

Page 8: ...es un mutes both Mic and Line inputs if Bass or Treble are selected Note Volume adjustments do not affect muting status If volume is adjusted to a muted source it will remain muted 4 MUTE LED a 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 f...

Page 9: ...7 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: ...t Master Controller KD AMP220 Tx Rx Rx Tx Ground Ground Baud Rate 9600 bits per second Data Bits 8 Stop Bits 1 Parity None Flow Control None Carriage Return Required Line Feed Required Commands are not case sensitive Spaces shown below may be excluded Carriage return and line feed is required at the end of each string Input Switching Description Command Command Example and Response Switch to Audio...

Page 11: ... the Bass Level of Line Audio SPO01ALD SPO01ALD Bass Level of Line Audio 04 turn Down Note xx Level 00 08 Turn Up the Treble Level of Line Audio SPO01AHU SPO01AHU Treble Level of Line Audio 04 turn Up Note xx Level 00 08 Turn Down the Treble Level of Line Audio SPO01AHD SPO01AHD Treble Level of Line Audio 04 turn Down Note xx Level 00 08 Set the Volume of MIC Audio to xx xx 00 60 SPI01AVxx SPO01AV...

Page 12: ...1AD MIC Audio Mute Disabled Unmute Line Audio Only SPI02AD SPI02AD Line Audio Mute Disabled Set Noise Gate ON SPO01NGON SPO01NGON Noise Gate is ON Set Noise Gate OFF SPO01NGOFF SPO01NGOFF Noise Gate is OFF System Query Description Command Response Print Help Message H See below Print Status Message STA See below Factory Reset Description Command Command Example and Response Set Factory Default SPC...

Page 13: ...1AVU Turn Up the Volume of LINE SPO01AVD Turn Down the Volum of LINE SPO01ALU Turn Up the Bass Level of LINE SPO01ALD Turn Down the Bass Level of LINE SPO01AHU Turn Up the Treble Level of LINE SPO01AHD Turn Down the Treble Level of LINE xx 00 60 yy 00 08 SPI01AVxx Set the Volume of MIC to xx SPO01AVxx Set the Volume of LINE to xx SPO01ALyy Set the Bass Level of LINE to yy SPO01AHyy Set the Treble ...

Page 14: ... Format Selector One 1 3 Position Slide Switch Balanced Unbalanced Analog Audio Output One 1 6 pin Phoenix Connector Speaker Output One 1 4 pin 5 mm Phoenix Connector 24V DC Power One 1 Barrel 5 5 mm OD 2 1 mm ID Audio Performance Input Impedance 10k Ω Output Impedance 50 Ω Analog Output 4 8 Ω Speaker Output Maximum Rated Power Output 40 Watts Frequency Response 120 Hz to 20 kHz Common Mode Reject...

Page 15: ...ity 20 to 90 Non condensing Storage Temperature 14 to 140 F 10 to 60 C Storage Humidity 20 to 90 Non condensing Power ESD and Regulatory Minimum Power Consumption 5 watts Maximum Power Consumption 45 watts Power Supply Input Voltage 100 240v AC at 50 60 Hz at 0 5 A Power Supply Output Rating 24V DC at 2 71 A ESD Protection 15kV Device Regulatory CE FCC Power Supply Regulatory CE FCC ...

Page 16: ...n the device has been damaged in any way including Damage to the power supply or power plug 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 a...

Page 17: ...mail tech keydigital com Repairs and Warranty Service Should your product require warranty service or repair please obtain a Key Digital Return Material Authorization RMA number by contacting us at Phone 914 667 9700 E mail rma keydigital com Feedback Please email any comments questions about the manual to E mail customersupport keydigital com Warranty Information All Key Digital products are buil...

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Page 20: ...lications 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 Key Digital Systems 521 East 3rd Street Mount Vernon NY 10553 Phone 914 667 9700 Fax 914 668 8666 Web www keydigital com Rev 0 Aug 2017 ...

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