Yamaha A-S1000 User Manual

UCAB

Stereo Amplifier

Amplificateur Stéréo

OWNER’S MANUAL
MODE D’EMPLOI

HiFi Began with Yamaha

Yamaha’s involvement with and passion for music goes back
more than a century, to when we built our first reed organ in

1887. Now we are the world’s leading producer of pianos and
other musical instruments, and are involved with music in many
other ways as well. We manufacture professional recording
equipment, we design concert halls and we assist artists at
concerts with set up and sound tuning.

This knowledge and experience benefits our production of
audio components in many ways. We introduced our first HiFi
(High Fidelity) turntable in 1955. Thereafter we were one of the first
to offer mass-produced, high quality audio equipment,
and introduced many legendary stereo components.

We hope you enjoy the genuine HiFi experience of
Yamaha Natural Sound.

Excellence in Audio Achievement

1922: We introduced a high-quality hand­wound phonograph.

Since 1955, we have released many HiFi
components, including turntables, tuners,
integrated amplifiers, control amplifiers,
power amplifiers and speakers.

NS-20 Monitor Speaker

CA-1000 Integrated Amplifier

Featuring A-Class operation, the CA-1000 set
the standard for integrated amplifiers.

NS-690 Monitor Speaker
NS-1000M Monitor Speaker

A truly legendary speaker still revered by HiFi enthusiasts

B-1 Power Amplifier

An innovative power amp that used FETs in all stages

C-2 Control Amplifier

Received top prize at the Milan International Music
and HiFi Show.

NS-10M Studio Monitor Speaker

Became of the most popular studio monitors in the world.

A-1 Integrated Amplifier
PX-1 Turnt ab le

Yamaha’s first linear tracking turntable

B-6 Power Amplifier

Pyramid-shaped power amplifier with X power supply and
X amplifier

GT-2000/L Tu rn ta bl e

Ultra-precise heavyweight player embodying GT concept

CD-1 CD Player

First CD Player introduced in 1983

B-2x Power Amplifier
MX-10000 Power Amplifier and

CX-10000 Control Amplifier

Amplifier that redefined the capabilities of separate
components
100th anniversary model

AX-2000 Integrated Amplifier

High S/N ratio (128 dB), digital direct function equipped

NS-690

B-1

PX-1

B-6

CA-1000NS-20

NS-1000M

C-2

NS-10M

GT-2000

GT-CD1AX-2000

GT-CD1 CD Player

Top-loading type player with integrated separate structure

MX-1 Power Amplifier and CX-1 Control
Amplifier

Soavo-1 and Soavo-2 Natural Sound
Speaker Systems

A-S2000 Stereo Amplifier and
CD-S2000 Super Audio CD Player

A-S1000 Stereo Amplifier and
CD-S1000 Super Audio CD Player

Soavo-2Soavo-1

◆ Floating balanced circuit design

The perfectly symmetrical, fully new floating balanced power amplifier maximizes the performance of the analog
amplifier.

◆ Parallel volume and tone control

◆ Four independent high capacity power supplies

◆ Horizontally symmetrical structure

◆ Phono amplifier with fully discrete structure

◆ Newly developed heavyweight feet to suppress vibrations

■ Supplied accessories

Please check that you have received all of the following parts.

• Remote control

• Batteries (AA, R6, UM-3) (×2)

• Power cable

• Safety brochure

Contents

Controls and functions.......................................................................................................................................... 6

Connections.......................................................................................................................................................... 14

Specifications ....................................................................................................................................................... 20

Troubleshooting................................................................................................................................................... 24

■ About this manual

• y indicates a tip for your operation.

• This manual is printed prior to production. Design and specifications are subject to change in part as a result of improvements, etc. In
case of differences between the manual and the product, the product has priority.

• The color of images in this manual may vary from the original.

• Read the “Safety brochure” before using this unit.

4 En

Controls and functions

In this chapter, you will learn the controls and functions of A-S1000.

5 En

Controls and functions

■ Front panel (left side)

BASS

ON

OFF

1 POWER

Press upward or downward to turn on or off this unit.

y

The POWER indicator above lights up when this unit is turned
on.

Notes

• If the POWER indicator flashes when you turn on this unit,
disconnect the power cable and refer to the troubleshooting
section (page 24).

• When you turn on this unit, there will be a few second delay
before this unit can reproduce sound.

+

SPEAKERSPHONESPOWER

OFF

-

A

B

A+B
BI-WIRING

4132

2 Remote control sensor

Receives signals from the remote control.

y

The remote control transmits a directional infrared beam. Be sure
to aim the remote control directly at the remote control sensor on
the front panel of this unit during operation.

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30 30

Within 6 m (20 ft)

TREBLE

BALANCE

LINE 2

MAIN DIRECT

LINE 1

CD

TUNER

PHONO

VOLUMEINPUT

-

RL+

3 PHONES jack

Outputs audio for private listening with headphones.

Note

When headphones are plugged in:
– Both speaker sets connected to the SPEAKERS L/R CH A

and B terminals are turned off.

– No signals are output at the PRE OUT jacks, while signals are

output at the REC jacks.
– You cannot select MAIN DIRECT as the input source.
– If headphones are plugged into the PHONES jack while

MAIN DIRECT is selected as the input source, no audio is

output at the PHONES jack. Use the headphones jack of the

preamplifier connected to the MAIN IN jacks.

AUDIO MUTE

4 SPEAKERS

Turns on or off the speaker set connected to the
SPEAKERS L/R CH A and/or B terminals on the rear
panel.

• Switch to the OFF position to turn off both speaker
sets.

• Switch to the A or B position to turn on the speaker set
connected to the SPEAKERS L/R CH A or B
terminals.

• Switch to the A+B BI-WIRING position to turn on
both speaker sets.

Caution

If you use two sets (A and B), the impedance of each speaker
must be 8 Ω or higher. When only using one set of speakers (A or
B), use speakers with an impedance of 4 Ω or higher.

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English

Controls and functions

■ Front panel (right side)

BASS

ON

OFF

5 BASS

Increases or decreases the low frequency response. The
center position produces a flat response.
Control range: –9 dB to +9 dB

6 TREBLE

Increases or decreases the high frequency response. The
center position produces a flat response.
Control range: –9 dB to +9 dB

y

When both the BASS and TREBLE controls are set to the center
position, audio signal bypasses the tone control circuitry.

-

SPEAKERSPHONESPOWER

A

OFF

B

A+B
BI-WIRING

+

5

7 BALANCE

Adjusts the audio output balance of the left and right
speakers to compensate for sound imbalances caused by
speaker locations or listening room conditions.

Note

The BALANCE control does not affect the signals input at the
MAIN IN jacks (INPUT selector: MAIN DIRECT) and signals
output at the REC OUT jacks.

Note

The BASS and TREBLE controls do not affect the signals input
at the MAIN IN jacks (INPUT selector: MAIN DIRECT) and
signals output at the REC OUT jacks.

8 En

TREBLE

BALANCE

LINE 2

MAIN DIRECT

LINE 1

CD

TUNER

PHONO

VOLUMEINPUT

-

RL+

8 INPUT selector

Selects the input source you want to listen to.
The audio signals of the selected input source are also
output at the REC jacks.

y

• The input source names correspond to the names of the
connection jacks on the rear panel.

• Switch to the MAIN DIRECT position to select the component
connected to the MAIN IN jacks. When MAIN DIRECT is
selected as the input source, no signals are output at the PRE
OUT, REC, and PHONES jacks.

• The input setting is retained for about 1 week after the power is
turned off.

AUDIO MUTE

09876

9 AUDIO MUTE

Press downward to reduce the current volume level by
approximately 20 dB. Press again to restore the audio
output to the previous volume level.

y

• The AUDIO MUTE indicator lights up while the mute function
is on.

• You can also rotate VOLUME on the front panel or press
VOL +/– on the remote control to resume the audio output.

0 VOLUME

Controls the volume level. This does not affect the REC
level.

Note Note

The audio signals are not output at the REC jacks while LINE2 is
selected as the input source.

The VOLUME control does not affect when you select MAIN
DIRECT as the input source. Adjust the volume level using the
volume control on the preamplifier connected to the MAIN IN
jacks.

English

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Controls and functions

■ Rear panel

1 23

SPEAKERS R CH

A

B

See page 14 for connection information.

1 SPEAKERS L/R CH terminals

2 INPUT jacks

3 LINE2 jacks

4 MAIN IN jacks

Note

Adjust the volume level using the volume control on the
preamplifier connected to the MAIN IN jacks when you select
MAIN DIRECT as the input source.

CD

PHONO

INPUT

LR

L

R

MCMM

GND

LINE2

RECPBLINE 1TUNER

9

5 PRE OUT jacks

y

• When you connect audio pin plugs to the PRE OUT jacks to
drive the speakers using an external amplifier, it is not
necessary to use the SPEAKERS L/R CH terminals.

• The signal output at the PRE OUT jacks are affected by the
BASS and TREBLE settings.

• The PRE OUT jacks output the same channel signal as the
SPEAKERS L/R CH terminals.

• When you use a subwoofer, connect it to the PRE OUT jacks
and speakers to the SPEAKERS L/R CH terminals.

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5 1 7864

SPEAKERS L CH

PRE OUTMAIN IN

A

B

6 AC IN

Use this inlet to plug in the supplied power cable.

7 VOLTAGE SELECTOR

(Asia and General models only)

The VOLTAGE SELECTOR on the rear panel of this unit
must be set for your local main voltage BEFORE plugging
the power cable into the AC wall outlet. Improper setting
of the VOLTAGE SELECTOR may cause damage to this
unit and create a potential fire hazard.
Rotate the VOLTAGE SELECTOR clockwise or
counterclockwise to the correct position using a straight
slot screwdriver.

Voltages are as follows:

............................ AC 110/120/220/230–240 V, 50/60 Hz

VOLTAGE SELECTOR

230­240V

AC IN

8 Foot

If this unit is unstable, you can adjust the foot height by
rotating it.

9 PHONO

Selects the type of magnetic cartridge of the turntable
connected to the PHONO jacks on the rear panel.

• Set to the MM position when the connected turntable has a
moving magnet (MM) cartridge.

• Set to the MC position when the connected turntable has a
moving coil (MC) cartridge.

Note

When you replace the cartridge, be sure to turn off this unit.

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English

Controls and functions

■ Remote control

1

A/B/C/D/E

2

PRESET

4 Amplifier control buttons

INPUT /

Selects the input source you want to listen to.

Notes

• When MAIN DIRECT is selected as the input source, no
signals are output at the PRE OUT and REC jacks.

• If headphones are plugged into the PHONES jack while MAIN
DIRECT is selected as the input source, no audio is output at
the PHONES jack.

VOL +/–

Controls the volume level.

3

VOL

4

MUTE

VOL

INPUTINPUT

1 Infrared signal transmitter

Outputs infrared control signals.

2 Yamaha tuner control buttons

Control functions of Yamaha tuner. Refer to the owner’s
manual of your tuner for details.

Note

Not all Yamaha tuners can be controlled by this remote control.

3 Yamaha CD player control buttons

Control various functions of Yamaha CD player. Refer to
the owner’s manual of your CD player for details.

y

Press once to pause and twice to stop playback.

Note

Not all Yamaha CD players can be controlled by this remote
control.

Note

The VOLUME control does not affect when you select MAIN
DIRECT as the input source. Adjust the volume level using the
volume control on the preamplifier connected to the MAIN IN
jacks.

MUTE

Reduces the current volume level by approximately 20
dB. Press again to restore the audio output to the previous
volume level.

y

You can also press VOL +/– to resume the audio output.

■ Installing batteries in the remote control

1

3

2

1 Press the part and slide the battery

compartment cover off.

2 Insert the two supplied batteries

(AA, R6, UM-3) according to the polarity
markings (+ and –) on the inside of the
battery compartment.

3 Slide the cover back until it snaps into place.

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Connections

In this section, you will make connections between A-S1000, speakers,
and source components.

Connections

AC IN

Speakers A
(R channel)

+

-

CD player

Tuner

SPEAKERS R CH

A

B

+

-

Speakers B
(R channel)

Caution

• If you use two sets (A and B), the impedance of each speaker
must be 8 Ω or higher. When only using one set of speakers (A
or B), use speakers with an impedance of 4 Ω or higher.

• Do not let the bare speaker wires touch each other or do not let
them touch any metal part of this unit. This could damage this
unit and/or the speakers.

CD

PHONO

INPUT

LR

L

R

MCMM

GND

LINE2

RECPBLINE 1TUNER

PRE OUTMAIN IN

Ground

Tur nt ab le

DVD player,

etc.

• All connections must be correct: L (left) to L, R (right) to R,
“+” to “+”, and “–” to “–”. If the connections are faulty, no
sound will be heard from the speakers, and if the polarity of the
speaker connections is incorrect, the sound will be unnatural
and lack bass. Also, refer to the owner’s manual for each of
your components.

• Connect your turntable to the GND terminal to reduce noise in
the signal. However, you may hear less noise without the
connection to the GND terminal for some turntables.

14 En

Preamplifier,

+

–

+

–

L

R

+

–

+

–

L

R

AV receiver, etc.

Pre-out

External amplifier or

active subwoofer

SPEAKERS L CH

-

Speakers A
(L channel)

+

INPUT

L

L

R

O

MCMM

GND

LINE2

RECPBLINE 1TUNER

PRE OUTMAIN IN

A

B

AC IN

+–

Output Input

Speakers B
(L channel)

CD recorder,

tape deck, etc.

Caution

• Because the power amplifier of A-S1000 is of the floating
balanced type, the following types of connections are not
possible:
– Connecting with the left channel “–” terminal and the right

channel “–” terminal as well as “+” terminals (Fig. 1).

– Deliberately connecting with the left/right channel “–”

terminals and metal part on the rear panel of this unit, as well
as accidentally touching them.

– Connecting with the left channel “–” terminal and the right

channel “–” terminal inverted (cross connection, Fig. 2).

• Do not connect your active subwoofer to the SPEAKERS L/R
CH terminal. Connect it to the PRE OUT jacks of this unit.

Fig. 1 Fig. 2

+

L

–

–

R

+

+

L

–

–

R

+

English

15 En

Connections

Caution

If you use two sets (A and B), the impedance of each speaker
must be 8 Ω or higher. When only using one set of speakers (A or
B), use speakers with an impedance of 4 Ω or higher.

■ Connecting the speakers

1 Remove approximately 10 mm (0.4 in) of

insulation from the end of each speaker
cable and twist the exposed wires of the
cable together to prevent short circuits.

10 mm (0.4 in)

2 Unscrew the knob and then insert the bare

wire into the hole.

■ Connecting the speakers using the
banana plug
(Except for Europe models)

First, tighten the knob and then insert the banana
plug into the end of the corresponding terminal.

Banana plug

■ Connecting the speakers using the
Y-shaped lug

1 Unscrew the knob and then sandwich the

Y-shaped lug between the ring part and base.

Y-shaped lug

Slide

3 Tighten the knob.

16 En

2 Tighten the knob.

■ Bi-wire connection

The bi-wire connection separates the woofer from the
combined midrange and tweeter section. A bi-wire
compatible speaker has four binding post terminals. These
two sets of terminals allow the speaker to be split into two
independent sections. With these connections, the mid and
high frequency drivers are connected to one set of
terminals and the low frequency driver to another set of
terminals.

SPEAKERS L CH

A

■ VOLTAGE SELECTOR
(Asia and General models only)

Caution

The VOLTAGE SELECTOR on the rear panel of this unit
must be set for your local voltage BEFORE plugging the
power cable into the AC wall outlet. Improper setting of
the VOLTAGE SELECTOR may cause damage to this
unit and create a potential fire hazard.
Rotate the VOLTAGE SELECTOR clockwise or
counterclockwise to the correct position using a straight
slot screwdriver.

Voltages are as follows:

........................ AC 110/120/220/230–240 V, 50/60 Hz

B

Caution

When making bi-wiring connections, use speakers with an
impedance of 4 Ω or higher.

Note

When making bi-wiring connections, remove the shorting bridges
or cables on the speaker.

y

To use the bi-wire connections, switch the SPEAKERS selector
to the A+B BI-WIRING position.

VOLTAGE SELECTOR

230­240V

Vol ta ge
indication

■ Connecting the power cable

Connect the power cable into the AC IN inlet on the rear
panel when all connections are complete, and then plug in
the power cable to the AC wall outlet.

17 En

English

Connections

■ A-S1000 input/output table

INPUT

selector

Output jacks

SPEAKERS CD PHONO TUNER LINE1 LINE2 PB MAIN IN

PHONES
(Headphones)

PRE OUT CD PHONO TUNER LINE1 LINE2 PB –

LINE2 REC CD PHONO TUNER LINE1 – –

CD PHONO TUNER LINE1 LINE2

CD PHONO TUNER LINE1 LINE2 PB –

The shaded area indicates that the BASS, TREBLE, BALANCE, and VOLUME controls are ineffective.

MAIN

DIRECT

Note

No signal is output while the SPEAKERS
selector is switched to the OFF position.

No signal is output at the SPEAKERS
terminals and PRE OUT jacks while
headphones are connected to the
PHONES jack.

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