Owner's Manual

4
En
Supplied Accessories
Power cord
Power cord (5.9 ft/1.8 m) . . . . . . . . . . . . . . . . . . . . . . . (1)
(Plug type varies from country to country.)
*
In catalogs and on packaging, the letter at the end of the product
name indicates the color. Specifications and operations are the
same regardless of color.
Features
ADM-20.4 Power Amplifier
• 75 W/ch (1kHz, 8 ohms, 0.08% THD, 2ch Driven FTC)
• WRAT (Wide Range Amplifier Technology)
• High Current Low Impedance Drive
• 10,000 µF Capacitor x 2
• Three Stage Inverted Darlington Circuitry
• Copper Bus Plate for Low Impedance Drive
• 1/16"(16mm) Full-flat Chassis
• Aluminum Front Panels
• 12V Trigger in/out
• Impedance Switch (4 ~ 8 ohms and 8 ~ 16 ohms)
• Auto Power-on Function by Receiving Audio Signal
• Auto Standby Function
• OUTPUT (RCA, Through Out)
• Compatible with IRK-120-3A
Install the power amplifier on a sturdy rack or shelf. Position
it so that its weight is evenly dispersed on its four legs. Do
not install the power amplifier in a place with vibration or an
unstable location.
The power amplifier is designed to have high conversion
efficiency, however, its temperature will become much
higher than other audio equipment. Therefore, make sure not
to hamper heat dissipation by ensuring proper ventilation.
Contents
Introduction
Important Safety Instructions ......................................... 2
Precautions ...................................................................... 3
Supplied Accessories...................................................... 4
Features ............................................................................ 4
Installing the Power Amplifier......................................... 4
Getting to Know the Power Amplifier............................. 5
Front Panel..................................................................... 5
Rear Panel ..................................................................... 6
Connections
Connections ..................................................................... 7
Cable and Jacks............................................................. 7
Connecting the AV Receiver .......................................... 7
Connecting Your Speakers ............................................ 8
Connecting the Power Cord ........................................... 8
Advanced Operations
Custom Setup................................................................... 9
Setting the TRIGGER..................................................... 9
Setting the Auto Standby Function................................. 9
Setting the Speaker Impedance..................................... 9
Others
Operations ...................................................................... 10
Troubleshooting............................................................. 10
Specifications................................................................. 11
Installing the Power Amplifier
Approx. 8 in.
(20 cm)
Ensure proper ventilation.
Approx. 8 in.
(20 cm)
Approx.8in.(20cm)
Approx. 4 in.
(10 cm)