Yamaha Stereo Amplifier AX 590 User Manual

AX-590/490  
Natural Sound Stereo Integrated Amplifier  
100W + 100W (8) RMS Output Power, 0.015% THD, 20–20,000 Hz <AX-590>  
85W + 85W (8) 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.  
CAUTION  
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.  
OWNER’S MANUAL  
IMPORTANT!  
Please record the serial number of this  
unit in the space below.  
CONTENTS  
Explanation of Graphical Symbols  
Serial No.:  
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  
The lightning flash with arrowhead  
The serial number is located on the rear  
of the unit.  
Retain this Owner’s Manual in a safe  
place for future reference.  
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.  
WARNING  
TO REDUCE THE RISK OF FIRE OR  
ELECTRIC SHOCK, DO NOT EXPOSE  
THIS UNIT TO RAIN OR MOISTURE.  
 
FCC INFORMATION  
1. IMPORTANT NOTICE : DO NOT MODIFY THIS UNIT!  
Compliance with FCC regulations does not guarantee that  
interference will not occur in all installations. If this product  
is found to be the source of interference, which can be  
determined by turning the unit “OFF” and “ON”, please try  
to eliminate the problem by using one of the following  
measures:  
This product, when installed as indicated in the  
instructions contained in this manual, meets FCC  
requirements. Modifications not expressly approved by  
Yamaha may void your authority, granted by the FCC, to  
use the product.  
2. IMPORTANT : When connecting this product to  
accessories and/or another product use only high quality  
shielded cables. Cable/s supplied with this product  
MUST be used. Follow all installation instructions.  
Failure to follow instructions could void your FCC  
authorization to use this product in the USA.  
3. NOTE : This product has been tested and found to  
comply with the requirements listed in FCC Regulations,  
Part 15 for Class “B” digital devices. Compliance with  
these requirements provides a reasonable level of  
assurance that your use of this product in a residential  
environment will not result in harmful interference with  
other electronic devices.  
Relocate either this product or the device that is being  
affected by the interference.  
Utilize power outlets that are on different branch (circuit  
breaker or fuse) circuits or install AC line filter/s.  
In the case of radio or TV interference, relocate/reorient the  
antenna. If the antenna lead-in is 300 ohm ribbon lead,  
change the lead-in to coaxial type cable.  
If these corrective measures do not produce satisfactory  
results, please contact the local retailer authorized to  
distribute this type of product. If you can not locate the  
appropriate retailer, please contact Yamaha Electronics  
Corp., U.S.A. 6660 Orangethorpe Ave, Buena Park, CA  
90620.  
This equipment generates/uses radio frequencies and, if  
not installed and used according to the instructions  
found in the users manual, may cause interference  
harmful to the operation of other electronic devices.  
The above statements apply ONLY to those products  
distributed by Yamaha Corporation of America or its  
subsidiaries.  
We WantYou Listening For A Lifetime  
YAMAHA and the Electronic Industries Association’s  
Consumer Electronics Group want you to get the most out of  
your equipment by playing it at a safe level. One that lets the  
sound come through loud and clear without annoying blaring or  
distortion – and, most importantly, without  
affecting your sensitive hearing. Since hearing  
damage from loud sounds is often undetectable  
until it is too late, YAMAHA and the Electronic  
Industries Association’s Consumer Electronics  
Group recommend you to avoid prolonged  
exposure from excessive volume levels.  
SUPPLIED ACCESSORIES  
After unpacking, check that the following parts are contained.  
Remote Control Transmitter  
Batteries (size AA, R6, UM-3)  
3
 
CONNECTIONS  
Before attempting to make any connections to or from this unit, be sure to first switch OFF the power to this unit and to any other  
components to which connections are being made.  
When making connections between this unit and other components, be sure all connections are made correctly, that is to say L  
(left) to L, R (right) to R, “+” to “+” and “–” to “–”. Also, refer to the owner’s manual for each component to be connected to this  
unit.  
AX-590  
Compact disc player  
Turntable  
Tape deck 2  
Speakers A  
OUTPUT  
GND  
Right  
Left  
GND  
PHONO  
AC OUTLETS  
SWITCHED  
MM  
/
MC  
l20V 60Hz  
l00W MAX. TOTAL  
SPEAKERS  
REMOTE  
CD  
CONTROL  
A
B
PRE  
OUT  
MAIN  
IN  
TAPE  
PB  
TAPE  
REC  
OUT  
1
TAPE  
PB  
TAPE  
REC  
OUT  
PHONO  
TUNER  
2
AUX  
A
B:l2MIN./SPEAKER  
A
OR B:6MIN./SPEAKER  
COUPLER  
To AC outlet  
Right  
Left  
Tuner  
Tape deck 1  
Video cassette player,  
LD player, etc.  
Speakers B  
: Refer to “ABOUT THE OTHER REAR PANEL PARTS” on page 6.  
AX-590 only  
Select either MM or MC position depending on your PHONO cartridge,  
PHONO (MM/MC) switch  
Moving Magnet or Moving Coil type. However, if you use a high output MC  
cartridge, select MM position.  
To select the MC position, press this switch so that it is held inward. To  
select the MM position, press this switch so that it is released outward.  
MM/MC  
4
 
AX-490  
Compact disc player  
Tuner  
Tape deck 1  
Speakers A  
Right  
Left  
(U.S.A. model)  
GND  
CD  
TUNER  
AC OUTLETS  
SWITCHED  
TAPE  
PB  
MAINS  
SPEAKERS  
l20V 60Hz  
l00W MAX. TOTAL  
TAPE  
1
REC  
OUT  
A
B
TAPE  
PB  
PHONO  
TAPE  
2
REC  
OUT  
PHONO  
AUX  
A
B:l2MIN./SPEAKER  
A
OR B:6MIN./SPEAKER  
REMOTE  
CONTROL  
To AC outlet  
Right  
Left  
Turntable  
Video cassette player,  
LD player, etc.  
Tape deck 2  
Speakers B  
: Refer to “ABOUT THE OTHER REAR PANEL PARTS” on page 6.  
The power to the SWITCHED outlets is controlled by this unit’s  
POWER switch or the provided remote control transmitter’s  
POWER key. These outlets will supply power to any  
component whenever this unit is turned on.  
The maximum power (total power consumption of  
components) that can be connected to the SWITCHED AC  
OUTLETS is 100 watts.  
AC OUTLETS (SWITCHED)  
(U.S.A., Canada, Europe and General models)  
............................................................3 SWITCHED OUTLETS  
(U.K. and Australia models)..................1 SWITCHED OUTLET  
Use these to connect the power cords from your components  
to this unit.  
5
 
CONNECTING SPEAKERS  
Connect the SPEAKERS terminals to your speakers with wire  
of the proper gauge, cut as short as possible. If the  
One or two speaker systems can be connected to this unit.  
If you connect only one speaker system, connect it to either  
the SPEAKERS A or B terminals.  
Use speakers with the specified impedance shown on the  
rear of this unit.  
<U.S.A., Canada and General models only>  
Banana Plug connections are also possible. Simply insert  
the Banana Plug connector into the corresponding terminal.  
connections are faulty, no sound will be heard from the  
speakers. Make sure that the polarity of the speaker wires is  
correct, that is, + and – markings are observed. If these wires  
are reversed, the sound will be unnatural and will lack bass.  
Do not let the bare speaker wires touch each other and do  
not let them touch the metal parts of this unit as this could  
damage this unit and/or speakers.  
How to Connect:  
Red: positive (+)  
Black: negative (–)  
Unscrew the knob.  
2
Insert the bare wire.  
[Remove approx. 5mm  
(1/4”) insulation from  
the speaker wires.]  
Tighten the knob and  
secure the wire.  
1
3
ABOUT THE OTHER REAR PANEL PARTS  
REMOTE CONTROL (PHONO) connector  
If you have a YAMAHA turntable with a terminal for remote  
control, connect it to this connector by using the cable provided  
with the turntable. This connection allows you to control the  
turntable from the provided remote control transmitter.  
PRE  
OUT  
MAIN  
IN  
GND terminal (For turntable use)  
Connecting the ground wire of the turntable to this terminal will  
normally minimize hum, but in some cases better results may  
be obtained with the ground wire disconnected.  
COUPLER  
Notes  
If you will not use the PRE OUT/MAIN IN terminals, never  
remove the jumper pins from these terminals. If removed,  
no sound will be output from this unit.  
AX-590 only  
PRE OUT/MAIN IN terminals  
If you will use this unit with an external unit connected  
between the PRE OUT and MAIN IN terminals, make sure  
that the CD DIRECT AMP switch and the PURE DIRECT  
switch on the front panel are turned off.  
If you will use this unit as a power amplifier, connect the  
outputs of an external control amplifier etc. to this unit’s  
MAIN IN terminals. In that case, this unit’s controls will not  
function except the PHONES jack and the SPEAKERS  
switches, so use the controls on the external control  
amplifier to make volume adjustment etc.  
Removing the jumper pins enables this unit to independently  
perform the functions of a control amplifier and a power  
amplifier. These terminals are for connection of a signal-  
processing system such as a graphic equalizer or sound  
processor.  
If a sound processor or other external unit is connected  
between these terminals, the VOLUME control of this unit can  
be used for overall adjustment of the level of sound.  
To connect such a unit, remove the jumper pins from the PRE  
OUT/MAIN IN terminals, connect the inputs of that unit to the  
PRE OUT terminals and its outputs to the MAIN IN terminals.  
For details, refer to the owner’s manual included with the unit  
to be connected.  
6
 
OPERATIONS  
AX-590  
AX-490  
7
2
2
1, 6  
4 7  
3
7
1, 6  
4 7  
3
TO PLAY A SOURCE  
VOLUME  
l6  
Select the speakers to be used.  
1
4
l8  
l4  
20  
24  
l2  
l0  
SPEAKERS  
28  
34  
8
2
A
B
6
4
40  
50  
ON  
ON  
3
60  
70  
OFF  
OFF  
l
0
–dB  
Set to the “ ” position.  
If you use two speaker systems, press both the A and B  
switches.  
*
Turn the power on.  
2
POWER  
Play the source.  
5
6
VOLUME  
l6  
l8  
l4  
20  
l2  
24  
l0  
28  
34  
8
2
6
Select a desired input source.  
4
3
40  
50  
60  
3
INPUT  
CD  
l
70  
TAPE 1  
TUNER  
PHONO  
0
–dB  
TAPE 2  
Adjust to the desired output level.  
AUX  
*
AX-590 only  
If desired, adjust the BASS, TREBLE, BALANCE and  
LOUDNESS controls, etc. (Refer to page 9–10.)  
7
If you select turntable as an input source (PHONO  
position), you should confirm that the PHONO (MM/MC)  
switch on the rear panel is set to the position  
corresponding to the type of cartridge being used by the  
turntable. (Refer to page 4.)  
To turn off the power  
Press the POWER switch again.  
7
 
AX-590  
AX-490  
3
3
1
3, 5  
3, 5  
1
TO RECORD A SOURCE TO TAPE (OR DUB FROM A TAPE TO ANOTHER)  
Select the source to be recorded.  
1
4
5
Set the tape deck to be used for recording in the  
recording mode.  
AX-490  
AX-590  
To monitor the sound to be recorded (or being  
recorded), select the tape deck being used for  
recording with the INPUT selector.  
REC OUT  
REC OUT  
CD  
TAPE 1  
TUNER  
CD  
TAPE  
TEAP  
1
TUNER  
PHONO  
TAPE 2  
PHONO  
2
AUX  
AUX  
INPUT  
CD  
TAPE 1  
TUNER  
PHONO  
TAPE 2  
2
3
Play the source.  
AUX  
Confirm the source by selecting it with the INPUT  
selector and turning up the VOLUME control.  
VOLUME  
Notes  
INPUT  
CD  
l6  
l8  
l4  
20  
If you want to enjoy another source while recording, select it  
with the INPUT selector.  
VOLUME, BASS, TREBLE, BALANCE, LOUDNESS  
controls, CD DIRECT AMP switch and PURE DIRECT  
switch settings have no effect on the material being  
recorded.  
l2  
24  
l0  
TAPE 1  
TUNER  
PHONO  
28  
34  
8
2
TAPE 2  
6
4
40  
50  
60  
AUX  
3
l
70  
0
–dB  
8
 
Adjusting the BALANCE control  
Selecting the SPEAKER system  
Adjust the balance of the output volume to the left and right  
speakers to compensate for sound imbalance caused from  
speaker location or listening room conditions.  
Because one or two speaker systems can be connected to this  
unit, the SPEAKERS switches allow you to select speaker  
system A or B, or both at once.  
AX-490  
AX-590  
SPEAKERS  
A
B
BALANCE  
BALANCE  
0
ON  
ON  
l
l
0
l
l
2
2
2
2
OFF  
OFF  
3
3
3
3
4
4
4
4
R
L 5  
5
L
5
5
R
Adjusting the BASS and TREBLE  
controls  
Adjusting the continuously variable  
LOUDNESS control  
This control provides compensation for the human ears’ loss of  
sensitivity to high and low-frequency ranges at low volume.  
This control is adjustable to retain full tonal range at any  
volume level.  
AX-590  
BASS  
TREBLE  
0
0
l
l
l
l
2
2
2
2
3
3
3
3
1
4
4
4
4
AX-590  
AX-490  
5
5
5
5
LOUDNESS  
LOUDNESS  
Set to the “FLAT” position.  
AX-490  
FLAT  
l
FLAT  
30 dB  
l
30dB  
2
l0  
BASS  
TREBLE  
2
l0  
0
0
3
9
l
l
l
l
3
9
4
8
2
2
2
2
4
8
5
7
6
3
3
3
3
5
7
6
4
4
4
4
5
5
5
5
2
VOLUME  
l6  
BASS  
: Turn this clockwise to increase (or counter-  
clockwise to decrease) the low frequency  
response.  
l8  
l4  
20  
l2  
24  
l0  
28  
8
2
Set to the loudest listening  
level that you would listen  
to.  
34  
6
4
40  
50  
60  
TREBLE : Turn this clockwise to increase (or counter-  
clockwise to decrease) the high frequency  
response.  
3
l
70  
0
–dB  
3
AX-590  
AX-490  
Turn until the desired  
volume is gained.  
LOUDNESS  
LOUDNESS  
FLAT  
l
FLAT  
30 dB  
l
30dB  
2
l0  
2
l0  
3
9
3
9
4
8
4
8
5
7
6
5
7
6
9
 
Using the PURE DIRECT switch  
Using the CD DIRECT AMP switch  
You can enjoy the purest possible sound from your audio  
sources by setting this switch so that the indicator illuminates.  
By doing so, the audio signals bypass the BASS, TREBLE,  
BALANCE and LOUDNESS controls, thus eliminating any  
alterations to the audio signals.  
You can enjoy the purest possible CD sound from your CD  
player by setting this switch so that the indicator illuminates.  
By doing so, CD’s input signals are sent to the built-in amplifier  
special for CD directly bypassing the INPUT selector, BASS,  
TREBLE, BALANCE and LOUDNESS controls, and then sent  
to the power amplifier. This signal routing reproduces the  
purest CD sound eliminating any alterations to the CD signals.  
AX-590 only  
The SUBSONIC FILTER switch and the PRE OUT/MAIN  
IN terminals are also bypassed.  
*
AX-590 only  
The SUBSONIC FILTER switch and the PRE OUT/MAIN  
IN terminals are also bypassed.  
*
PURE  
DIRECT  
CD DIRECT  
AMP  
Setting the SUBSONIC FILTER switch  
AX-590 only  
Note  
If both the CD DIRECT and PURE DIRECT switches are on,  
only the CD DIRECT switch will function.  
If you set this switch to “ON” position, undesirable ultra-low-  
frequency signals caused by turntable rumble or warped  
records can be cut out without losing sound quality.  
SUBSONIC  
FILTER  
ON  
OFF  
When you listen with headphones  
Open/close the control door  
AX-590 only  
Connect the headphones to the PHONES jack. When listening  
with headphones privately, set both the SPEAKERS A and B  
switches to the OFF position.  
When it is not necessary to operate controls inside the control  
door, close the door.  
To close the door  
PHONES  
To open the door  
10  
 
REMOTE CONTROL TRANSMITTER  
The remote control transmitter provided with this unit is designed to control all the most commonly used functions of the unit. If the  
CD player, tuner, turntable and tape deck connected to this unit are YAMAHA components designed for remote control compatibility,  
then this remote control transmitter will also control various functions of each component.  
KEY FUNCTIONS  
For Control of This Unit  
PLAY/CUT  
PLAY  
PHONO  
CD  
POWER  
SKIP  
Turns the power on/off.  
SEARCH  
PAUSE/STOP  
DISC SKIP  
PRESET  
+
DECK A/B  
PLAY  
STOP  
A/B/C/D/E TUNER  
DIR A  
DIR B  
TAPE 1  
TAPE 2  
Selects input source.  
REC/PAUSE  
REC MUTE  
AUX  
+
VOLUME  
Turns the volume level up/down.  
For Other Component Control  
Identify the remote control transmitter keys with your component’s keys. If these keys are identical, their function will be the  
same. On each key function, refer to the corresponding instruction on your component’s manual.  
Starts/stops record play on turntable.  
PLAY/CUT  
PLAY  
PHONO  
CD  
POWER  
SKIP  
SEARCH  
PAUSE/STOP  
DISC SKIP  
Controls compact disc player.  
* DISC SKIP is applicable only to  
compact disc changer.  
PRESET  
+
DECK A/B  
PLAY  
STOP  
A/B/C/D/E TUNER  
Controls tuner  
+: Selects higher preset station  
number.  
–: Selects lower preset station  
number.  
A/B/C/D/E: Selects the page (A – E)  
of preset stations.  
DIR A  
DIR B  
TAPE 1  
TAPE 2  
Controls tape deck.  
* DIR A, B and DECK A/B are  
applicable only to double cassette  
tape deck.  
* For a single cassette deck with  
automatic reverse function,  
pressing DIR A will reverse the  
direction of tape running.  
REC/PAUSE  
REC MUTE  
AUX  
+
VOLUME  
11  
 
STANDBY mode  
(U.K. and Europe models only)  
While the power is on, pressing the POWER key on the remote  
control transmitter switches the unit to the STANDBY mode.  
(In this mode, the indicator is half illuminated.)  
POWER  
POWER  
Note  
The POWER switch on the front panel of this unit should  
be turned off when left unused for a long period of time.  
POWER on mode  
STANDBY mode  
NOTES ABOUT THE REMOTE CONTROL TRANSMITTER  
Battery installation  
Remote control transmitter operation range  
AX-590  
AX-490  
2
1
Remote control sensor  
3
Within approximately  
6 m (19.7 feet)  
Battery replacement  
If you find that the remote control transmitter must be used  
closer to the main unit, the batteries are weak. Replace both  
batteries with new ones.  
Notes  
Use only AA, R6, UM-3 batteries for replacement.  
Be sure the polarities are correct. (See the illustration inside  
the battery compartment.)  
Remove the batteries if the remote control transmitter will  
Notes  
not be used for an extended period of time.  
There should be no large obstacles between the remote  
control transmitter and the main unit.  
If batteries leak, dispose of them immediately. Avoid  
touching the leaked material or letting it come in contact with  
clothing, etc. Clean the battery compartment thoroughly  
before installing new batteries.  
If the remote control sensor is directly illuminated by strong  
lighting (especially an inverter type of fluorescent lamp etc.),  
it might cause the remote control transmitter not to work  
correctly. In this case, reposition the main unit to avoid  
direct lighting.  
12  
 
TROUBLESHOOTING  
If the unit fails to operate normally, check the following points to determine whether the fault can be corrected by the simple  
measures suggested. If it cannot be corrected, or if the fault is not listed in the SYMPTOM column, disconnect the power cord and  
contact your authorized YAMAHA dealer or service center for help.  
SYMPTOM  
CAUSE  
REMEDY  
The unit fails to turn on when the POWER  
switch is pressed.  
Power cord is not plugged in or is not  
completely inserted.  
Firmly plug in the power cord.  
No sound.  
Incorrect output cord connections.  
Connect the cords properly. If the problem  
persists, the cords may be defective.  
Appropriate input source is not selected.  
Select an appropriate input source with the  
INPUT selector.  
The SPEAKERS switches are not set  
properly.  
Set the SPEAKERS switch which  
corresponds to the speakers to be used to  
the ON position.  
Speaker connections are not secure.  
Secure the connections.  
The sound suddenly goes off.  
The protection circuit has functioned because  
of short circuit etc.  
Turning the unit off and then on will reset the  
protection circuit.  
Only one side speaker outputs the sound.  
Incorrect setting of the BALANCE control.  
Incorrect cord connections.  
Adjust it to the appropriate position.  
Connect the cords properly. If the problem  
persists, the cords may be defective.  
There is a lack of bass, and no ambience.  
Sound “hums”.  
The + and – wires are connected in reverse  
at the amplifier or speakers.  
Connect the speaker wires in the correct  
phase (+ and –).  
Incorrect cord connections.  
Firmly connect the audio plugs. If the  
problem persists, the cords may be  
defective.  
No connection from the turntable to the GND  
terminal.  
Make the GND connection between the  
turntable and this unit.  
Sound level is low.  
The LOUDNESS control is functioning.  
Set the LOUDNESS control to the FLAT  
position.  
Sound level is low or sound is distorted  
while playing a record on the turntable.  
(For AX-590 only)  
The PHONO (MM/MC) switch on the rear of  
this unit is set to the improper position.  
Reset the PHONO (MM/MC) switch to the  
proper position.  
The INPUT selector will not function  
though it is turned.  
The CD DIRECT AMP switch is ON.  
Switch off the CD DIRECT AMP switch.  
Using the BASS, TREBLE, BALANCE,  
LOUDNESS controls and SUBSONIC  
FILTER switch (AX-590 only) does not  
affect the tone.  
The CD DIRECT AMP or PURE DIRECT  
switch is ON.  
The CD DIRECT AMP and PURE DIRECT  
switches must be switched OFF to use those  
controls.  
The remote control transmitter does not  
work.  
Direct sunlight or lighting (of an inverter type  
of flourescent lamp etc.) is striking the  
remote control sensor of the main unit.  
Change position of the main unit.  
The distance or range within which the  
remote control transmitter can be used  
decreases.  
The batteries of this remote control  
transmitter are too weak.  
Replace the batteries with new ones.  
13  
 
SPECIFICATIONS  
Minimum RMS Output Power per Channel  
<AX-590>  
8 ohms, 20 Hz to 20 kHz, 0.015% THD  
...............................................100W+100W  
6 ohms, 20 Hz to 20 kHz, 0.03% THD  
...............................................120W+120W  
<AX-490>  
8 ohms, 20 Hz to 20 kHz, 0.019% THD  
...................................................85W+85W  
6 ohms, 20 Hz to 20 kHz, 0.038% THD  
...............................................100W+100W  
Maximum Input Signal (1 kHz, 0.007% THD)  
<AX-590>  
Channel Separation (Vol. –30 dB)  
<AX-590>  
PHONO MM ...................................150 mV  
PHONO MC......................................10 mV  
Maximum Input Signal (1 kHz, 0.003% THD)  
<AX-490>  
PHONO MM/MC (Input Shorted  
1 kHz/10 kHz) .........................75 dB/60 dB  
CD/TUNER/TAPE/AUX (Input 5.1 k-ohms  
Terminated 1 kHz/10 kHz) ......65 dB/50 dB  
<AX-490>  
PHONO MM ...................................115 mV  
CD/TUNER/TAPE/AUX (Input 5.1 k-ohms  
Terminated 1 kHz/10 kHz) ......65 dB/50 dB  
Output Level/Impedance  
<AX-590>  
REC OUT ......................150 mV/470 ohms  
PRE OUT.............................1.0V/1 k-ohms  
<AX-490>  
Tone Control Characteristics  
BASS: Boost/cut................±10 dB (20 Hz)  
Turnover Frequency.........(350 Hz)  
TREBLE: Boost/cut...........±10 dB (20 kHz)  
Turnover Frequency.....(3.5 kHz)  
Dynamic Power per Channel  
(by IHF Dynamic Headroom measuring  
method)  
REC OUT ......................150 mV/470 ohms  
<AX-590>  
Headphone Jack Rated Output/ Impedance  
<AX-590>  
Output Level (8 ohms, 0.015% THD)  
..........................................................0.33V  
Impedance ..................................680 ohms  
<AX-490>  
8/6/4/2 ohms.................140/170/220/290W  
<AX-490>  
Filter Characteristics <AX-590 only>  
SUBSONIC FILTER .........15 Hz, –18 dB/oct  
8/6/4/2 ohms.................130/150/185/220W  
Continuous Loudness Control  
Attenuation............................–30 dB (1 kHz)  
(Level related equalization)  
DIN Standard Output Power per Channel  
(4 ohms, 1 kHz, 0.7% THD)  
[Europe model only]  
Output Level (8 ohms, 0.019% THD)  
............................................................0.3V  
Impedance ..................................680 ohms  
<AX-590>.........................................150W  
<AX-490>.........................................120W  
Gain Tracking Error (0 to –60 dB) ............2 dB  
Frequency Response (20 Hz to 20 kHz)  
CD/TUNER/TAPE/AUX....................0±0.5 dB  
MAIN IN <AX-590 only>.................0±0.5 dB  
Power Supply  
IEC Power [Europe model only]  
<AX-590>  
[U.S.A. and Canada models]  
..........................................AC 120V, 60 Hz  
[Australia and U.K. models]  
..........................................AC 240V, 50 Hz  
[Europe model]..................AC 230V, 50 Hz  
[General model]  
(8 ohms, 1 kHz, 0.015% THD) ..........110W  
<AX-490>  
RIAA Equalization Deviation (20 Hz to 20 kHz)  
PHONO MM......................................±0.3 dB  
PHONO MC <AX-590 only>............±0.5 dB  
(8 ohms, 1 kHz, 0.019% THD) ..........100W  
Power Band Width  
................AC 110/120/220/240V, 50/60 Hz  
<AX-590>  
Total Harmonic Distortion (20 Hz to 20 kHz)  
<AX-590>  
8 ohms, 50W, 0.03% THD  
..........................................10 Hz to 50 kHz  
<AX-490>  
Power Consumption  
<AX-590>  
[U.K., Europe, Australia and General  
models]..............................................210W  
<AX-490>  
PHONO MM to REC OUT (3V) ......0.003%  
PHONO MC to REC OUT (3V).......0.007%  
CD/TUNER/TAPE/AUX to PRE OUT (1V)  
........................................................0.005%  
CD/TUNER/TAPE/AUX to SP OUT  
(50W/8 ohms).................................0.008%  
<AX-490>  
8 ohms, 42.5W, 0.038% THD  
..........................................10 Hz to 50 kHz  
[U.S.A. model] ...................................190W  
[Canada model] ...................320 VA, 250W  
[U.K., Europe, Australia and General  
models]..............................................210W  
Damping Factor  
8 ohms, 20 Hz–20 kHz  
<AX-590> ...........................more than 320  
<AX-490> ...........................more than 240  
PHONO MM to REC OUT (3V) ......0.003%  
CD/TUNER/TAPE/AUX to SP OUT  
(42.5W/8 ohms)..............................0.008%  
AC Outlets  
Damping Factor (DIN)  
4 ohms, 40 Hz  
[U.S.A., Canada, Europe and General  
models]  
Intermodulation Distortion  
[Australia, U.K. and Europe models]  
<AX-590> ...........................more than 160  
<AX-490> ...........................more than 120  
(Rated output/8 ohms) ........................0.01%  
3 SWITCHED OUTLETS  
..........................................100W max. total  
[U.K. and Australia models]  
1 SWITCHED OUTLET ....100W max. total  
Signal-to-Noise Ratio (IHF-A Network)  
<AX-590>  
Maximum Power (EIAJ)  
1 kHz, 10% THD  
[General model only]  
<AX-590>  
8 ohms.................................................145W  
6 ohms.................................................170W  
<AX-490>  
8 ohms.................................................130W  
6 ohms.................................................150W  
Input Sensitivity/Impedance  
PHONO MM.....................2.5 mV/47 k-ohms  
PHONO MC <AX-590 only>  
PHONO MM (5 mV Input Shorted)  
......................................................... 92 dB  
PHONO MC (500 µV Input Shorted)  
......................................................... 76 dB  
CD/TUNER/TAPE/AUX (Input Shorted)  
(CD DIRECT AMP; ON) ................. 110 dB  
<AX-490>  
Dimensions (W x H x D)  
<AX-590> .................435 x 146 x 388.5 mm  
(17-1/8” x 5-3/4” x 15-5/16”)  
<AX-490> ....................435 x 146 x 386 mm  
(17-1/8” x 5-3/4” x 15-3/16”)  
PHONO MM (5 mV Input Shorted)  
......................................................... 88 dB  
CD/TUNER/TAPE/AUX (Input Shorted)  
(CD DIRECT AMP; ON) ................. 110 dB  
Weight  
<AX-590> ................10.4 kg (22 lbs. 14 oz.)  
<AX-490> ....................9.2 kg (20 lbs. 4 oz.)  
Accessories...........Remote control transmitter  
Batteries  
..........................................160 µV/220 ohms  
CD/TUNER/TAPE/AUX ....150 mV/47 k-ohms  
MAIN IN <AX-590 only>......1.0V/10 k-ohms  
Residual Noise (IHF-A Network)  
(CD DIRECT AMP; ON).......................35 µV  
(PURE DIRECT; ON)...........................90 µV  
Specifications subject to change without  
notice.  
14  
 
YAMAHA ELECTRONICS CORPORATION, USA 6660 ORANGETHORPE AVE., BUENA PARK, CALIF. 90620, U.S.A.  
YAMAHA CANADA MUSIC LTD. 135 MILNER AVE., SCARBOROUGH, ONTARIO M1S 3R1, CANADA  
YAMAHA ELECTRONIK EUROPA G.m.b.H. SIEMENSSTR. 22-34, D-25462 RELLINGEN BEI HAMBURG, F.R. OF GERMANY  
YAMAHA ELECTRONIQUE FRANCE S.A. RUE AMBROISE CROIZAT BP70 CROISSY-BEAUBOURG 77312 MARNE-LA-VALLEE CEDEX02, FRANCE  
YAMAHA ELECTRONICS (UK) LTD. YAMAHA HOUSE, 200 RICKMANSWORTH ROAD WATFORD, HERTS WD1 7JS, ENGLAND  
YAMAHA SCANDINAVIA A.B.  
J
A
WETTERGRENS GATA 1, BOX 30053, 400 43 VÄSTRA FRÖLUNDA, SWEDEN  
YAMAHA MUSIC AUSTRALIA PTY, LTD. 17-33 MARKET ST., SOUTH MELBOURNE, 3205 VIC., AUSTRALIA  
VS 97850  
 

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