Yamaha Stereo Amplifier 374 User Manual

AX-570/470  
Natural Sound Stereo Integrated Amplifier  
100W + 100W (8) RMS Output Power, 0.015% THD, 20–20,000 Hz <AX-570>  
65W + 65W (8) RMS Output Power, 0.015% THD, 20–20,000 Hz <AX-470>  
High Dynamic Power, Low Impedance Drive Capability  
Continuously Variable Loudness Control  
PURE DIRECT Switch to Reproduce the Purest Source Sound  
SUBSONIC FILTER Switch to Cut Out Undesirable  
Ultra-Low-Frequency Signals <For AX-570 only>  
PRE OUT/MAIN IN Terminals Useful for Connecting An Equalizer,  
Sound Processor, etc. <For AX-570 only>  
Remote Control Capability  
Thank you for selecting this YAMAHA stereo integrated amplifier.  
CAUTION  
RISK OF ELECTRIC SHOCK  
DO NOT OPEN  
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  
CONTENTS  
unit in the space below.  
Explanation of Graphical Symbols  
Model:  
Serial No.:  
Safety Instructions ................... 2  
Supplied Accessories .............. 3  
Connections ............................. 4  
Operations ............................... 6  
Remote Control Transmitter ... 10  
Notes about the Remote  
Control Transmitter ................. 11  
Troubleshooting ...................... 12  
Specifications ......................... 13  
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 serial number is located on the rear  
of the unit.  
Retain this Owner’s Manual in a safe  
place for future reference.  
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.  
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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 Want You 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  
Batteries (size AA, R6, UM-3)  
Transmitter  
PLAY/CUT  
PLAY  
PHONO  
CD  
POWER  
SKIP  
SEARCH  
PRESET  
PAUSE/STOP DISC SKIP  
A/B/C/D/E TUNER  
+
DIR  
A
DECK A/B  
PLAY  
DIR  
B
TAPE  
TAPE  
1
2
REC/PAUSE  
EQ  
STOP  
REC MUTE  
ON/FLAT  
PRESET SKIP  
AUX  
+
VOLUME  
3
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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.  
Turntable  
Tuner  
Compact disc player  
Speakers A  
Left  
Right  
REMOTE  
CONTROL  
(U.S.A. model)  
To AC outlet  
Right  
Left  
Video cassette player,  
LD player, etc.  
Tape deck 1  
Tape deck 2  
Speakers B  
Illustration: AX-570  
Parts in shaded area (  
) are not present on AX-470.  
4
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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.  
Banana Plug connections are also possible (except for  
Scandinavian models). 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.  
Insert the bare wire.  
[Remove approx. 5mm  
2
(1/4”) insulation from  
1
the speaker wires.]  
Tighten the knob and  
secure the wire.  
3
ABOUT THE ACCESSORY TERMINALS  
AC OUTLETS (SWITCHED)  
PRE OUT/MAIN IN terminals  
<Except Australia, U.K. and Europe models of  
<For AX-570 only>  
AX-470>  
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 component is connected, 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.  
Use these to connect the power cords from your components  
to this unit.  
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.  
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.  
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.  
5
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OPERATIONS  
4
3
7
<AX-570>  
2
1, 6  
PHONO  
PHONES  
<AX-470>  
7
3
7
4
2
1, 6  
PHONES  
7
TO PLAY A SOURCE  
Select the speakers to be used.  
1
4
<AX-570>  
<AX-470>  
SPEAKERS  
SPEAKERS  
Set to the “ ” position.  
If you use two speaker systems, press both the A and B  
switches.  
*
<AX-570>  
<AX-470>  
2
3
POWER  
/STANDBY  
POWER  
Play the source.  
5
6
Select a desired input source.  
Adjust to the desired output level.  
<For AX-570 only>  
*
If desired, adjust the BASS, TREBLE, BALANCE and  
LOUDNESS controls, etc. (Refer to page 8–9.)  
7
If you select turntable as an input source (PHONO  
position), refer to “Setting the PHONO switch” on page 9.  
6
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3, 5  
<AX-570>  
3
3
1
3, 5  
<AX-470>  
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 in the recording mode.  
REC OUT  
To monitor the sound being recorded, select the tape  
deck being used for recording with the INPUT selecto.  
CD  
TAPE  
1
TUNER  
TAPE  
2
PHONO  
AUX  
2
3
Play the source.  
Confirm the source by selecting it with the INPUT  
selector and turning up the VOLUME control.  
Notes  
If you want to enjoy another source while recording, select it  
with the INPUT selector.  
VOLUME, BASS, TREBLE, BALANCE, LOUDNESS  
controls and PURE DIRECT switch settings have no effect  
on the material being recorded.  
7
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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-470>  
<AX-570>  
BALANCE  
SPEAKERS  
0
l
l
SPEAKERS  
2
2
3
3
4
4
R
L 5  
5
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.  
BASS  
TREBLE  
0
0
l
l
l
l
2
2
2
2
3
3
3
3
4
4
4
4
1
5
5
5
5
LOUDNESS  
FLAT  
l
30dB  
2
l0  
3
Set to the “FLAT” position.  
9
BASS  
: Turn this clockwise to increase (or counter-  
clockwise to decrease) the low frequency  
response.  
4
8
5
7
6
TREBLE : Turn this clockwise to increase (or counter-  
clockwise to decrease) the high frequency  
response.  
2
3
Set to the loudest listening level that  
you would listen to.  
LOUDNESS  
FLAT  
l
30dB  
2
l0  
Turn so that the desired volume can  
be achieved.  
3
9
4
8
5
7
6
8
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Setting the PHONO switch  
For AX-570 only  
Using the PURE DIRECT 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 signal bypasses the BASS, TREBLE,  
BALANCE and LOUDNESS controls, eliminating any  
alterations to the audio signal.  
Select either MM or MC position depending on your PHONO  
cartridge, Moving Magnet or Moving Coil type. However, if you  
use a high output MC cartridge, select MM position.  
Concerning AX-570 only, the SUBSONIC FILTER switch  
and the PRE OUT/MAIN IN terminals are also bypassed.  
*
PHONO  
MC  
PURE  
DIRECT  
MM  
Setting the SUBSONIC FILTER switch  
For AX-570 only  
<
>
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  
PHONES  
Connect the headphones to the PHONES jack. When listening  
with headphones privately, set both the SPEAKERS A and B  
switches to the OFF position.  
9
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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, equalizer, and tape deck connected to this unit are YAMAHA components, 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  
Turns the power on/off.  
SKIP  
SEARCH  
PRESET  
PAUSE/STOP DISC SKIP  
A/B/C/D/E TUNER  
+
Selects input source.  
DIR A  
DECK A/B  
PLAY  
DIR B  
TAPE  
TAPE  
1
2
REC/PAUSE  
EQ  
STOP  
REC MUTE  
ON/FLAT  
PRESET SKIP  
AUX  
+
Turns the volume level up/down.  
VOLUME  
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.  
Controls tuner  
+: Selects higher preset station  
number.  
Starts/stops record play on turntable.  
: Selects lower preset station  
number.  
A/B/C/D/E: Selects the page (A – E)  
of preset station buttons.  
Controls compact disc player.  
* DISC SKIP is applicable only to  
compact disc changer.  
PLAY/CUT  
PLAY  
PHONO  
CD  
POWER  
SKIP  
SEARCH  
PRESET  
PAUSE/STOP DISC SKIP  
A/B/C/D/E TUNER  
+
Controls tape deck.  
DIR A  
DECK A/B  
PLAY  
DIR B  
TAPE  
TAPE  
1
2
* DIR A, B and DECK A/B are  
applicable only to double cassette  
tape deck.  
Controls equalizer.  
* PRESET SKIP selects any preset  
equalizer curve whenever this is  
pressed. (After the last preset  
curve is selected, it returns to the  
first one by another press on this  
key.)  
* For a single cassette deck with  
automatic reverse function,  
pressing DIR A will reverse the  
direction of tape running.  
REC/PAUSE  
EQ  
STOP  
REC MUTE  
ON/FLAT  
PRESET SKIP  
AUX  
+
VOLUME  
10  
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STANDBY mode  
<For AX-470 and Europe model of AX-570>  
<AX-470>  
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.)  
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  
<Europe model of AX-570>  
POWER on mode  
STANDBY mode  
NOTES ABOUT THE REMOTE CONTROL TRANSMITTER  
Battery installation  
Remote control transmitter operation range  
1
3
2
Remote control  
sensor  
Within approximately  
7 m (23 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.  
11  
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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.  
Appropriate input source is not selected.  
Speaker connections are not secure.  
Connect the cords properly. If the problem  
persists, the cords may be defective.  
Select an appropriate input source with the  
INPUT selector.  
Secure the connections.  
The sound suddenly goes off.  
The protection circuit has activated 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.  
Using the BASS, TREBLE, BALANCE,  
LOUDNESS controls and SUBSONIC  
FILTER switch (AX-570 only) does not  
affect the tone.  
The PURE DIRECT switch is ON.  
The PURE DIRECT switch 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.  
12  
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SPECIFICATIONS  
Minimum RMS Output Power per Channel  
(PURE DIRECT; ON)  
<AX-570>  
8 ohms, 20 Hz to 20 kHz, 0.015% THD  
...............................................100W+100W  
6 ohms, 20 Hz to 20 kHz, 0.03% THD  
[Except Scandinavia model]  
...............................................120W+120W  
<AX-470>  
Maximum Input Signal (1 kHz, 0.01% THD)  
<AX-570>  
Channel Separation (Vol. –30 dB)  
<AX-570>  
PHONO MM ...................................150 mV  
PHONO MC......................................10 mV  
<AX-470>  
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-470>  
PHONO MM ...................................115 mV  
Output Level/Impedance  
<AX-570>  
CD/TUNER/TAPE/AUX (Input 5.1 k-ohms  
Terminated 1 kHz/10 kHz) ......65 dB/50 dB  
8 ohms, 20 Hz to 20 kHz, 0.015% THD  
[Except Europe model] ..............65W+65W  
[Europe model] ..........................75W+75W  
6 ohms, 20 Hz to 20 kHz, 0.03% THD  
[U.S.A. and Canada model].......75W+75W  
[Australia, U.K. and General model]  
...................................................70W+70W  
[Europe (except Scandinavia) model]  
...................................................80W+80W  
REC OUT ......................150 mV/220 ohms  
PRE OUT............................1.0V/470 ohms  
<AX-470>  
Tone Control Characteristics  
BASS: Boost/cut................±10 dB (20 Hz)  
TREBLE: Boost/cut...........±10 dB (20 kHz)  
REC OUT .........................150 mV/1 k-ohm  
Headphone Jack Rated Output/ Impedance  
<AX-570>  
Output Level (8 ohms, 1 kHz, 0.015% THD)  
..........................................................0.47V  
Impedance ..................................470 ohms  
<AX-470>  
Filter Characteristics <AX-570 only>  
SUBSONIC FILTER .........15 Hz, –18 dB/oct  
Continuous Loudness Control  
Attenuation............................–30 dB (1 kHz)  
(Level related equalization)  
Dynamic Power per Channel  
(by IHF Dynamic Headroom measuring  
method)  
Output Level (8 ohms, 1 kHz, 0.019% THD)  
..........................................................0.46V  
Impedance ..................................390 ohms  
Gain Tracking Error (0 to –60 dB)  
<AX-570>..............................................2 dB  
<AX-470>..............................................3 dB  
<AX-570>  
8/6/4/2 ohms.................140/170/220/290W  
<AX-470>  
Frequency Response (20 Hz to 20 kHz)  
CD/TUNER/TAPE/AUX....................0±0.5 dB  
MAIN IN <AX-570 only>.................0±0.5 dB  
[Except Europe model]  
Power Supply  
8/6/4/2 ohms...................95/115/135/160W  
[Europe model]  
8/6/4/2 ohms.................115/135/160/180W  
[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]  
RIAA Equalization Deviation (20 Hz to 20 kHz)  
PHONO MM......................................±0.3 dB  
PHONO MC <AX-570 only>............±0.5 dB  
DIN Standard Output Power per Channel  
(4 ohms, 1 kHz, 0.7% THD)  
[Europe model only]  
<AX-570>.........................................150W  
<AX-470>.........................................110W  
Total Harmonic Distortion (20 Hz to 20 kHz)  
<AX-570>  
................AC 110/120/220/240V, 50/60 Hz  
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-470>  
Power Consumption  
<AX-570>  
IEC Power (8 ohms, 1 kHz, 0.015% THD)  
[Europe model only]  
[U.S.A. model] ...................................200W  
[Canada model] ...................330 VA, 260W  
[Australia and U.K. models]...............210W  
[Scandinavia model]..........................180W  
[Europe (except Scandinavia) and General  
models]..............................................210W  
<AX-470>  
<AX-570>.........................................110W  
<AX-470>...........................................85W  
Power Band Width  
<AX-570>  
PHONO MM to REC OUT (3V) ......0.003%  
CD/TUNER/TAPE/AUX to SP OUT  
(35W/8 ohms).................................0.008%  
8 ohms, 50W, 0.03% THD  
..........................................10 Hz to 50 kHz  
<AX-470>  
[U.S.A. model] ...................................160W  
[Canada model] ...................280 VA, 220W  
[Australia and U.K. models]...............170W  
[Scandinavia model]..........................160W  
[Europe (except Scandinavia) model]  
..........................................................190W  
[General model].................................170W  
Intermodulation Distortion  
(Rated output/8 ohms) ........................0.01%  
8 ohms, 35W, 0.03% THD  
..........................................10 Hz to 50 kHz  
Signal-to-Noise Ratio (IHF-A Network)  
<AX-570>  
Damping Factor  
8 ohms, 20 Hz–20 kHz  
PHONO MM (5 mV Input Shorted)  
......................................................... 92 dB  
PHONO MC (0.5 mV Input Shorted)  
......................................................... 76 dB  
CD/TUNER/TAPE/AUX (Input Shorted)  
....................................................... 110 dB  
<AX-470>  
<AX-570> ............................................320  
<AX-470> ............................................240  
AC Outlets  
[Except Australia, U.K. and Europe models  
of AX-470]  
Damping Factor (DIN)  
4 ohms, 40 Hz  
[Australia, U.K. and Europe models]  
<AX-570> ............................................160  
<AX-470> ............................................120  
SWITCHED OUTLETS  
..........................................100W max. total  
PHONO MM (5 mV Input Shorted)  
......................................................... 88 dB  
CD/TUNER/TAPE/AUX (Input Shorted)  
(PURE DIRECT; ON) ..................... 110 dB  
Dimensions (W x H x D)  
...................................435 x 150 x 388.5 mm  
(17-1/8” x 5-7/8” x 15-5/16”)  
Input Sensitivity/Impedance  
PHONO MM.....................2.5 mV/47 k-ohms  
PHONO MC <AX-570 only>  
..........................................160 µV/220 ohms  
CD/TUNER/TAPE/AUX  
Weight  
Residual Noise (IHF-A Network)  
(PURE DIRECT; ON)...........................70 µV  
<AX-570> .....................11 kg (24 lbs. 3 oz.)  
<AX-470> ..................9.5 kg (20 lbs. 14 oz.)  
........................................150 mV/47 k-ohms  
MAIN IN <AX-570 only>  
.............................................1.0V/10 k-ohms  
Accessories...........Remote control transmitter  
Batteries  
Specifications subject to change without  
notice.  
13  
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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, 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  
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