Yamaha A-S2000 - Amplifier User manual

HiFi Began with Yalllaha

Yamaha's involvement with and passion for music goes back

more than acentury, to when we built our first reed organ in

1887. Now we are the world's leading producer

pianos and

other musical instruments, and are involved with music

many

other ways as well.

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

audio components

many ways. We introduced our first HiFi

(High Fidelity) turntable

1954. Thereafter we were one

the first

to offer mass-produced, high quality audio equipment,

and introduced many legendary stereo components.

hope you enjoy the genuine HiFi experience

Yamaha Natural Sound.

Excellence in Audio Achievement

1920- j

1970s t

First HiFi System introduced in 1920

introduced numerous HiFi components

(turntables, FM/AM tuners, integrated

amplifiers, preamplifiers, power amplifiers

and speakers)

1955 -1965.

Natural Sound Speaker Series introduced

1967

NS-20 Monitor Speaker

CA-1000 Integrated Amplifier

Featuring A-Class operation, the

CA-l

000

set

the standard for integrated amplifiers.

NS-690 Monitor Speaker

NS-1000M Monitor Speaker

Atruly legendary speaker still revered

HiFi

enthusiasts.

B-1

Power Amplifier

An innovative power amp that used FETs in all

stages.

C-2 Control Amplifier

Received top prize

the Milan International Music

and HiFi Show.

NS-1

Studio Monitor Speaker

Became

the most popular studio monitors

the world.

NS-2D

NS-69D

B·l

CA·10DO

NS-l0DOM

C·2

•

(;

~---..9

•

-.-.

NS·lO'v1

1--.

.::;

:.,

~----/jl-----,;

A·J

B-6

MX·lODOO

------

~-.

iIfSS

&~~~

-:...,..~-

B-2x

CX·1DDDO

-.----......,....,..--,

'";>4

Soavo·l

B-6 Power Amplifier

Pyramid-shaped power amplifier.

GT-2000/L Turntable

First CD Player (CD-1) introduced in 1983

B-2x Power Amplifier

MX-10000 Power Amplifier and

CX-10000 Control Amplifier

Redefined the capabilities

separate components.

A-1

Integrated Amplifier

PX-2 Turntable

Yamaha's first straight arm turntable.

AX-1 Integrated Amplifier

GT-CD1 CD Player

MX-1

Power Amplifier and

CX-1

Preamplifier

Soavo-1 and Soavo-2 Natural Sound

Speaker Systems

A-S2000 Stereo Amplifier and

CD-S2000 Super Audio

Player

1980s

1990s

2000s t

A-52000

•Fullfloating and balanced circuit design achieves

for

thefirst time the

fullpo~ntialofanawgueamplij1cation

An entirely new floating and balanced

power

amp achieves complete symmetry and permits full balanced transmission

(amplification) from the input

jack

just

before the speaker

jack

•Full-stage balancedsignal transmission

The

world's

first integrated

amp

to offer full stage balanced transmission, combining high

power

output with good sound

texture and outstanding SIN performance

•Floating andbalancedpower amp

•Fully balanced control amp

•Fully balanceddigital volume

and

tone controls

•Four large capacitypowersupplies

•Symmetrical construction

•Headphone ampfor low impedance drive

•Supplied accessories

Please

check

that you have received all

the following parts.

•Remote control

•Batteries (AA, R6, UM-3)

(x2)

•

Power

cable

•Safety brochure

Contents

Controls and

functions

Connections

Specifications 20

Troubleshooting

•About this manual

•

:'41<

indicates atip for your operation.

•This manual

printed prior

production. Design and specifications are subject

change

part as aresult

improvements. etc.

case

differences between the manual and the product. the product has priority.

•The color

images

this manual may vary

fi·om

the original.

•Read the safety brochure before using Ihis unit.

4En

SPEAKERS

O~A+B

'lJ,LV"~"'

•Front panel (left side)

@YAMAHA

POWER

PHONES

---

TRIM

~."

'~'

71-

'---11---r--11y-11--1----

I~I~

@®

POWER

Press upward

downward

to turn on

off

this unit.

The

POWER

indicator

above

lights up when this unit is turned

on.

Notes

•

the

POWER

indicator

tlashes when

you

turn on this unit,

disconnect

the

power

cable

and

contact

the

nearest

authorized

Yamaha

dealer

service

center

(see

page

24).

•

When

you

turn on

this

unit, there will be afew

second

delay

before

this

unit can

reproduce

sound.

6En

®Remote control sensor

Receives signals from the remote control.

The

remote control transmits adirectional infrared beam.

Be sure to

aim

the remote control directly at the remote

control

sensor

on the front panel

this unit

during

operation.

\-----I-------,-,-----J

~:~

•

0•

300

Approximately 6 m (20 ft)

-----~~

@PHONES jack

Outputs audio

for

private listening with headphones.

Note

When

headphones are plugged

in:

Both

speaker sets connected

the SPEAKERS

LlR

and Bterminals are turned

off.

signals are output

the

PRE

OUT jacks, while signals are

output at the

REC

jacks.

You

cannot select MAIN DIRECT

the

input source.

If headphones are plugged into the PHONES jack while

MAl

DIRECT

selected

the input source,

audio

output

the PHONES jack.

@TRIM

Adjusts the volume level when headphones are plugged

avoid sudden changes

volume.

Choices:

-6

dB,

®SPEAKERS

Turns

or offthe speaker set connected

the

SPEAKERS L/R

Aand/or Bterminals

the rear

panel.

•Switch

the OFF position

turn offboth speaker

sets.

•Switch

the Aor Bposition to turn

the speaker set

connected

the SPEAKERS

L/R

Aor B

terminals.

•Switch

the A+B BI-WIRING position

turn

both speaker sets.

Caution

you

use

two sets

and

B),

the impedance

each speaker

must

8nor higher.

7En I

•Front panel (right side)

@YAMAHA

BASS

.i-i-7.,

,~,

'J,- ,_.f'

'---or-------r------------I---

BASS

Increases

decreases

the

low frequency response.

The

position

produces

aflat response.

Control range:

-10

dB to +10 dB

(J)

TREBLE

Increases

decreases the high frequency response.

The

position

produces

aflat response.

Control range:

-10

dB to +I0

Notes

•When both the BASS and TREBLE controls are set

the 0

position, audio signal bypasses the tone control circuitry.

•The BASS and TREBLE controls

not affect the signals input

at the MAIN DIRECTjacks and signals output

the

REC

OUT

jacks.

8En

BALANCE

Adjusts the audio output balance

the left and right

speakers to compensate for sound imbalances

caused

speaker

locations

listening

room

conditions.

Note

The BALANCE control does not affect the signals input at

the

MAIN DIRECT jacks and signals output at the

REC

OUT jacks.

®PHONO

Selects the type

magnetic cartridge

the turntable

connected to the

PHONO

jacks

on the rear panel.

•Press upward to the MM position when the connected

turntable has amoving magnet

(MM)

cartridge.

•Press

downward

to the MC position when the

connected

turntable has amoving coil

(MC)

cartridge.

•When you replace the cartridge, be sure to turn otTthis

unit.

MAIN

DIRECT

OPHONO

0 0 0

+lR

PHONO AUDIO MUTE

TREBLE

BALANCE

8 9

INPUT

CDBAl

VOLUME

@INPUT selector

Selects the input source you want to listen to.

The audio signals

the selected input source are also

output at the REC jacks.

Notes

•Switch

the CD SAL position

select the CD player

connected

the CD SALjacks (balanced

XLR

jacks).

•Switch to the CD position

select the CD player connected

the CD jacks (unbalanced

RCA

jacks).

•Switch

the MAIN DIRECT position

select the component

connected

the

MAIN

jacks. When MAIN DIRECT

selected as the input source,

signals are output at the PRE

OUT, REC, and PHONES jacks.

(jJ)

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.

,',

~"'~

•The AUDIO MUTE indicator lights

while the mute function

•

You

can also rotate VOLUME

the front panel or press

VOL

+1-

the remote control

resume the audio output.

©VOLUME

Controls the volume level. This does not affect the REC

level.

Note

The VOLUME control does not affect

when

you select MAIN

DIRECT as the input source. Adjust the volume level using the

volume control

the extemal amplifier connected

the MAIN

DIRECT jacks.

9En

A-52000

Controls

and

functions

•Rear panel

®I

SPEAKERS

LINE2

I±J

TUNER

LINE

REC

SAL

@)@)

@)@

III

lID

III

®® ®®

®@)

lID

I±J

lID--III

®@)

GND

PHONO

See page

for connection information. ®PRE

OUT

jacks

SPEAKERS LlR CH terminals

®INPUT jacks

L1NE2

jacks

@MAIN

jacks

Note

Adjust

the

volume

level

using

the

volume

control on the external

amplifier

connected

the

MAIN

DIRECT

jacks

when you select

MAIN

DIRECT

as the input

source.

Notes

•When you

connect

audio

pin plugs to the

PRE

OUT

jacks

drive the

speakers

using an external amplifier, it

not

necessary

use the

SPEAKERS

LlR CH terminals.

•

The

signal

output

at the

PRE

OUT

jacks

are

affected

the

tone

control settings.

•

The

PRE

OUT

jacks

output

the

same

channel

signal as

the

SPEAKERS

LlR CH terminals.

•When you use asubwoofer,

connect

to the PRE

OUT

jacks

and

speakers

to the

SPEAKERS

LlR CH terminals.

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