Yamaha AX-490 User Manual

Natural Sound Stereo Integrated Amplifier
100W + 100W (8Ω) RMS Output Power, 0.015% THD, 20–20,000 Hz <AX-590>
85W + 85W (8Ω) RMS Output Power, 0.019% THD, 20–20,000 Hz <AX-490>
High Dynamic Power, Low Impedance Drive Capability
Continuously Variable Loudness Control
CD DIRECT AMP Switch to Reproduce the Purest CD Sound
PURE DIRECT Switch to Reproduce the Purest Source Sound
SUBSONIC FILTER Switch to Cut Out Undesirable
Ultra-Low-Frequency Signals
<For AX-590 only>
PRE OUT/MAIN IN Terminals Useful for Connecting An Equalizer,
Sound Processor, etc.
<For AX-590 only>
Remote Control Capability
Thank you for selecting this YAMAHA stereo integrated amplifier.
CONTENTS
Safety Instructions ................... 2
Supplied Accessories .............. 3
Connections ............................. 4
Operations ............................... 7
Remote Control Transmitter ... 11
Notes about the Remote
Control Transmitter ................. 12
Troubleshooting ...................... 13
Specifications ......................... 14
AX-590/490
IMPORTANT!
Please record the serial number of this
unit in the space below.
Serial No.:
The serial number is located on the rear
of the unit.
Retain this Owner’s Manual in a safe
place for future reference.
WARNING
TO REDUCE THE RISK OF FIRE OR
ELECTRIC SHOCK, DO NOT EXPOSE
THIS UNIT TO RAIN OR MOISTURE.
RISK OF ELECTRIC
SHOCK
CAUTION: TO REDUCE THE RISK OF
ELECTRIC SHOCK, DO NOT REMOVE
COVER (OR BACK), NO USER-SERVICEABLE
PARTS INSIDE, REFER SERVICING TO
QUALIFIED SERVICE PERSONNEL.
The lightning flash with arrowhead
symbol, within an equilateral triangle,
is intended to alert you to the
presence of uninsulated “dangerous
voltage” within the product’s
enclosure that may be of sufficient
magnitude to constitute a risk of
electric shock to persons.
The exclamation point within an
equilateral triangle is intended to alert
you to the presence of important
operating and maintenance
(servicing) instructions in the
literature accompanying the
appliance.
•
Explanation of Graphical Symbols
CAUTION
OWNER’S MANUAL

Yamaha AX-490 Specifications

General

Power Output	85 watts per channel into 8 ohms (stereo)
Frequency Response	20Hz to 20kHz
Total Harmonic Distortion	0.015%
Input Impedance	47 kOhms
Dimensions	435 x 151 x 391mm
Weight	9.1kg
Damping factor	240
Speaker load impedance	4 - 16 ohms
Input sensitivity	150mV (line)
Signal-to-Noise Ratio	100dB (CD, IHF-A)
Channel separation	60dB (line)

Summary

Safety Instructions

Service and Damage Prevention

Conditions requiring service and user limitations for repairs.

Pre-Operation Precautions

Essential steps for optimal performance and preventing damage before first use.

Connections

PHONO (MM/MC) Switch

Setting the MM/MC switch for turntable cartridge compatibility.

Switched AC Outlets

Connecting Speakers

Guide to connecting speaker wires to terminals, ensuring correct polarity.

Operations

Source Selection and Playback

Selecting input sources, playing audio, and choosing speaker outputs.

Volume and Tone Adjustments

Adjusting volume, bass, treble, balance, and loudness controls.

Recording and Dubbing to Tape

Procedure for recording audio sources to tape or dubbing between tape decks.

Tone and Balance Adjustments

Loudness Control Operation

Pure Direct and CD Direct Amp

Using Pure Direct and CD Direct Amp switches for enhanced sound quality.

Subsonic Filter Operation

Remote Control Transmitter

Unit Control Functions

Overview of remote control buttons for power, volume, and source selection.

Troubleshooting

Troubleshooting Common Issues

Guide to diagnosing and resolving common operational problems and symptoms.

Specifications

Output Power and Impedance

Detailed specifications for RMS output power and impedance ratings.

Input and Output Levels

Frequency Response and Distortion