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owners

manual

QuoMy

Uncomprorrmed

RA-820BX4

STEREO

INTEGRATED

AMPLIFIER

ENGLISH

DEUTSCH

FRANQAIS

WARNING

TO

PREVENT

FIRE

OR

SHOCK

HAZARD,

DO

NOT

EXPOSE

THIS

APPLIANCE

TO

RAIN

OR

MOISTURE

Writs

your

SERIAL

NUMBER

here.

Thfl

number

located

near

the

nami

plate

on

the

tear

panel.

SAFETY

INSTRUCTIONS

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

The

lighting

Hash

with

arrowhead

symbol,

within

an

equilateral

triangle,

is

intended

to

alert

the

user

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.

A

The

exclamation

point

within

an

equilaterai

triangle

is

intended

to

alert

the

user

to

the

presence

of

important

operating

and

maintenance

(servicing)

instructions

in

the

literature

accom¬

panying

the

appliance.

1,

Read

Instructions

—

Ail

the

safety

and

operating

instructions

should

be

read

before

the

appliance

is

operated.

2.

Retain

Instructions

—

The

safety

and

operating

in¬

structions

should

be

retained

for

future

reference,

3.

Heed

Warnings

—

All

warnings

on

the

appliance

and

in

the

operating

instructions

should

be

adhered

to.

4.

Follow

Instructions

—

All

operating

and

other

instruc¬

tions

should

bo

followed.

5.

Water

and

Moisture

—

The

appliance

should

not

be

used

near

water

—

for

example,

near

a

bathtub,

wash¬

bowl.

kitchen

sink,

laundry

tub,

in

a

wet

basement,

or

near

a

swimming

pool,

etc

6.

Carts

and

Stands

—

The

appliance

should

be

used

only

with

a

cart

or

stand

that

is

recommended

by

the

manufacturer,

7.

Wall

or

Ceiling

Mounting

—

The

appliance

should

be

mounted

to

a

wail

or

ceiling

only

as

recommended

by

the

manufacturer.

8

Ventilation

—

The

appliance

should

be

situated

so

that

its

location

or

position

does

not

interfere

with

its

proper

ventilation.

For

example,

the

appliance

should

not

be

situated

on

a

bed,

sofa,

rug,

or

similar

surface

that

may

block

the

ventilation

openings;

or

placed

in

a

built-in

installation,

such

as

a

bookcase

or

cabinet

that

may

impede

the

flow

of

air

through

the

ventilation

openings,

9

Heat

—

The

appliance

snould

be

situated

away

from

heat

sources

such

as

radiators,

stoves,

or

other

appliances

that

produce

heat,

10.

Power

Sources

—

The

appliance

should

be

connected

to

a

power

supply

only

of

the

type

described

in

the

operating

instructions

or

as

marked

on

the

appliance.

11.

Power-Cord

Protection

—

Power-supply

cords

should

be

routed

so

that

they

are

not

likely

to

be

walked

on

or

pinched

by

items

placed

upon

or

against

them,

paying

particular

attention

to

cords

at

plugs,

con¬

venience

receptacles,

and

the

point

where

they

exit

from

the

appliance.

12.

Cleaning

—

The

appliance

should

be

cleaned

only

as

recommended

by

the

manufacturer.

13.

Nonuse

Periods

—

The

power

cord

of

the

appliance

should

be

unplugged

from

the

outlet

when

left

unused

for

a

long

period

of

time.

14.

Object

and

Liquid

Entry

—

Care

should

be

taken

so

that

objects

do

not

fall

into

and

liquids

not

spilled

into

the

inside

of

the

appliance.

15.

Damage

Requiring

Service

—

The

appliance

should

be

serviced

by

qualified

service

personnel

when:

A.

The

power-supply

cord

or

the

plug

has

been

damaged:

or

B

Objects

have

fallen,

or

liquid

has

been

spilled

into

the

appliance;

or

C

The

appliance

has

been

exposed

to

rain;

or

D

The

appliance

does

not

appear

to

operate

normally

or

exhibits

a

marked

change

in

performance;

or

E.

The

appliance

has

been

dropped,

or

the

cabinet

damaged.

16

Servicing

—

The

user

should

not

attempt

to

service

the

appliance

beyond

those

means

described

in

the

operating

instructions.

All

other

servicing

should

be

referred

to

qualified

service

personnel.

17.

Grounding

or

Polarization

—

The

precautions

that

should

be

taken

so

that

the

grounding

or

polarization

means

of

an

appliance

is

not

defeated.

ENGLISH

STEREO

INTEGRATED

AMPLIFIER

RA-820BX4

INTRODUCTION

We

at

Rotel

want

to

thank

you

for

purchasing

our

audio

/

product,

Rotef

audio

products

are

designed

to

use

the

latest

elec¬

tronic

technology,

and

they

incorporate

our

long

experience

as

a

specialist

manufacturer

of

audio

equipment.

We

are

confident

that

you

will

find

satisfaction

in

the

high

quality

sound

and

top

performance,

and

that

you

will

find

pleasure

in

the

functional

beauty

achieved

through

human-engineering

concept

Before

starting

operation,

please

read

this

instruc¬

tion

manual

thoroughly

and

acquaint

yourself

with

the

proper

mode

of

using

the

unit

and

all

its

connections.

We

hope

you

will

enjoy

top-notch

performance

for

many

years

to

come.

BEFORE

ENJOYMENT/POWER

SUPPLY

Follow

the

instructions

below

for

maximum

safety:

1.

Use

a

wall

outlet

for

power

supply

Be

sure

to

connect

the

AC

line

cord

to

a

house-hold

wall

outlet

Be

certain

that

the

outlet

voltage

matches

the

elec-

tricaf

rating

of

the

unit,

found

on

the

rear

panel

name

plate.

2

.

Connecting

and

removing

AC

cord

Be

sure

to

connect

or

disconnect

the

AC

line

cord

only

after

turning

off

the

power

switch

to

prevent

possible

shock

noise

or

damage

to

the

speakers

3.

Ventilate

the

unit

well

Never

block

any

ventilation

holes

at

the

top

and

bottom

of

the

unit.

Be

sure

also

to

provide

ample

ventilation

space

around

the

unit.

Poor

ventilation

may

result

fn

damage

due

to

excessive

heat.

4.

Do

not

open

the

cabinet

In

order

to

avoid

electric

shock

or

damage

to

the

component,

never

open

the

cabinet.

If

a

foreign

object

falls

inside

the

unit

by

mistake,

turn

the

power

off,

disconnect

the

wall

plug,

and

consult

a

qualified

electrician

or

your

dealer.

5.

Installation

0e

sure

to

place

the

unit

in

a

level

and

flat

place

where

it

is

free

from

humidity,

vibration,

high

temperature

and

not

exposed

to

direct

sunlight.

Be

careful

not

to

place

the

unit

in

a

highly

enclosed

place

such

as

near

a

waif

or

on

a

bookshelf.

A

poor

ventilation

will

cause

Undesirable

effects

to

the

unit.

6.

Moving

the

unit

When

transporting,

remove

the

AC

cord

from

the

wall

outlet

and

all

other

connected

cords

on

the

rear

panel

to

prevent

wire

breakage

and

short

circuits.

7.

If

the

unit

gets

wet

If

the

unit

should

get

wet,

immediately

disconnect

the

AC

cord,

and

consult

your

dealer

or

a

qualified

electrician,

8.

Cleaning

and

maintenance

Do

not

use

chemicals

such

as

benzine

or

thinners

on

the

front

panel.

Always

use

a

soft,

dry

cloth

to

clean

the

unit.

9.

O

wner

s

manual

Keep

the

owner's

manual

near

the

unit,

and

record

the

serial

number

(found

on

the

rear

panel)

on

the

cover

EXCLUSIVE

NOTE

FOR

U.K.

If

your

unit

comes

with

a

2-core

cable

without

a

plug,

make

certain

live

and

neutral

leads

are

connected

to

the

proper

terminals.

Check

that

the

termnais

are

screwed

down

firmly

and

no

loose

strands

of

wire

are

present.

IMPORTANT;

The

wires

in

this

mains

lead

are

cioured

in

accordance

with

the

following

code:

BLUE:

NEUTRAL

BROWN:

LIVE

As

the

colours

of

the

wires

in

the

mains

lead

of

this

apparatus

may

not

correspond

with

the

coloured

markings

identifying

the

terminals

in

your

plug

pro¬

ceed

as

follows.The

wire

which

is

coloured

BLUE

must

be

connected

to

the

terminal

which

is

marked

with

the

letter

N

or

coloured

BLUE

OR

BLACK.

The

wire

which

is

coloured

BROWN

must

be

con¬

nected

to

the

terminal

which

is

marked

with

the

let¬

ter

L

or

coloured

BROWN

or

RED

CAUTION:

To

prevent

electric

shock

do

not

use

this

(polarized)

plug

with

an

extension

cord,

receptacle

or

other

outlet

unless

the

blades

can

be

fully

inserted

to

prevent

blade

exposure.

SPEAKERS

Use

speaker

systems

with

impedance

ratings

of

4-16

ohms,

when

you

hook

up

2

sets

of

speaker

systems,

be

sure

to

speakers

with

ratings

of

8-16

ohms.

Before

hooking

up

your

speaker

system,

check

its

impedance,

which

should

be

in¬

dicated

either

on

the

back

of

the

speaker,

or

in

the

speaker

instruction

manual.

HOOKING

UP

SPEAKERS

On

the

rear

panel

of

the

RA-820BX4

are

two

sets

of

speaker

terminals,

‘

DIRECT'

1

and

"REMOTE",

to

which

two

speaker

systems

may

be

connected.

Connect

the

speaker

leads

of

the

right-hand

speaker

to

terminals

RIGHT,

and

the

speaker

leads

of

the

left-hand

speaker

to

terminals

LEFT.

Make

sure

that

the

M

+

"

speaker

lead

is

connected

to

the

"

+

1

1

terminal,

and

the

lead

to

the

“-**

terminal.

Strip

1

Ocm

(3/8")

of

the

polyvinyl

chloride

insulation

from

the

end

of

each

speaker

lead.

Twist

the

exposed

strands

tightly,

and

secure

the

end

with

a

touch

of

solder.

Note:

When

only

one

pair

of

speakers

is

used,

be

sure

to

connect

them

to

DIRECT

terminals,

which

is

"straight-path"

1

,

so

headphone

circuit

is

not

connected.

If

wish

to

listen

to

headphone

and

privately,

connect

the

remote

speaker

ter¬

minals

and

use

the

speaker

remote

button

on

front

panel

to

turn

speaker

off.

2

RIGHT

DIRECT

SPEAKERS

LEFT

CONNECTING

PREAMPLIFIER

Connect

all

necessary

audio

components

to

the

rear

panel

of

the

unit,

using

RCA

pin

cords.

See

the

illustration

for

pro¬

perly

completed

connections.

When

connecting

RCA

pin

cords,

be

sure

that

L

(left)

and

R

(right)

markings

on

each

component

are

matched

correctly.

Connect

the

grounding

wire

of

the

turntable

to

the

terminal

marked

GND

on

the

amplifier.

VIDEO

SWITCHES

AND

CONTROLS

(1)

Power

Dutton

Depress

this

button

to

turn

on

the

power

in

the

unit.

Press

the

button

a

second

time

to

release

it

and

to

cut

off

the

power.

(2)

Power

Indicator

Glows

when

power

is

turned

on

with

the

power

button.

(3)

Headphones

Jack

Connect

headphones

to

listen

through

ihe

headphones.

When

the

SPEAKER

REMOTE

button

is

at

OFF,

the

sound

from

tne

speakers

connected

to

the

REMOTE

SPEAKERS

terminals

is

cut

off

and

you

can

adjust

the

headphone

volume

with

the

VOLUME

control.

If

a

speaker

system

is

connected

to

the

DIRECT

SPEAKERS

terminals,

however,

the

sound

from

those

speakers

cannot

be

cut

off,

so

listening

through

the

headphones

only

is

impossible

To

listen

through

the

headphones

alone,

do

not

connect

any

speakers

to

the

DIRECT

SPEAKERS

terminals.

(4)

Speaker

Remote

Button

Press

the

button

to

activate

the

speaker

system

connected

to

REMOTE

speaker

terminate

on

the

rear

panel

Release

the

button

OFF

to

cut

off

sound

from

remote

speakers.

(5)

MODE

Selector

With

the

selector

at

MoNo

position,

ail

the

signals

are

out-

pul

in

mono

At

the

STEREO

position,

ail

the

signals

are

output

in

STEREO.

(6)

Tape

Monitor

Selector

Used

to

listen

to

a

signal

supplied

from

the

tape

deck.

Set

the

selector

to

TAPE

position

for

the

signal

from

a

tape

deck

connected

to

TAPE

terminals

on

the

rear

panel.

Be

sure

to

set

this

selector

to

SOURCE

when

listening

to

a

source

selected

by

the

input

selector.

(7)

Function

Selector

Select

the

program

source

to

play

or

record.

PHONO:

Turntable

connected

to

the

PHONO

terminals.

CD:

CD

player

connected

to

the

CD

terminals.

TUNER:

Tuner

connected

to

the

TUNER

terminals.

AV/AUX

Video

cassette

recorder

or

video

disc

recorder

connected

to

the

AV/AUX

terminal.

Use

this

selector

with

the

Tape

Monitor

selector

at

the

SOURCE

position.

(8)

Volume

Control

Used

to

regulate

the

volume

level.

Turn

clockwise

to

in¬

crease

the

volume,

and

counterclockwise

to

reduce

it

This

is

a

dual

concentric

knob

which

permits

either

separate

or

combined

adjustment

of

both

channels.

STJfttD

IMTfeQHATEB

AMF^JFIER

RA-e2GeX4

rO

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(T

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OPERATION

•

Before

commencing

operation,

check

to

see

if

all

con¬

nections

are

properly

made.

•

Always

be

sure

to

set

the

volume

control

to

the

minimum

position

before

turning

on

power.

Listening

from

turntable

1.

Set

Tape

Monitor

selector

to

SOURCE.

2

+

Select

PHONO

on

the

function

selector.

3.

Start

playing

turntable,

and

raise

the

volume

to

the

desired

level.

Phono

MM/MC

Selector

The

unit

has

a

built-in

MC

head

amplifier

This

selector

is

used

to

receive

MM

(moving

magnet)

or

MC

(moving

phono

cartridge

signal

with

an

appropriate

gain.

In

position,

the

built-in

MC

head

amplifier

is

activated

When

your

turntable

uses

an

MC

cartridge,

set

the

slector

to

MC

position

When

MM

cartridge

is

used,

set

the

selector

to

MM

position.

Listening

from

compact

disc

player

or

tuner

1.

Set

Tape

Monitor

selector

to

source.

2.

To

listen

to

a

compact

disc,

set

the

Input

selector

to

the

CD

position;

set

it

to

the

TUNER

position

to

listen

to

radio

broadcasts.

3.

Play

the

compact

disc

or

tune

in

to

the

desired

station,

according

to

instructions

given

for

the

equipment.

4.

Raise

the

volume

to

the

desired

level.

Playing

back

tape

deck

1.

Set

Tape

Monitor

selector

to

TAPE

position

according

to

the

tape

deck

you

are

going

to

play

back.

2.

Start

playback.

3.

Raise

the

volume

to

the

desired

level.

Recording

program

source

Play

the

desired

program

source

according

to

the

procedures

mentioned

above.

The

signal

from

the

source

will

be

sent

through

TAPE

MONITOR

OUT

terminals

on

unit’s

rear

panel.

Put

the

tape

deck

in

the

record

mode

to

record

the

signal.

During

recording,

operation

of

Volume

control

will

have

no

effect

on

the

signal

being

sent

through

TAPE

MONITOR

OUT

terminals.

Playback

with

AV/AUX

Equipment

The

RA-820BX4

permits

connection

of

one

audio-visual

or

auxiliary

components.

There

are

one

set

of

audio

inputs

for

a

stereo

AV

component

such

as

a

video

disc

player

or

a

TV.

This

system

allows

high

performance

operation

for

optimal

sound

quality

such

as

digital

sound

from

a

Hi-Fi

video

disc

player.

Alternatively

the

inputs

can

be

used

for

connection

with

an

audio

equipment

such

as

another

compact

disc

player.

HUM

AND

NOISE

In

any

high

fidelity

installation,

hum

may

be

caused

by

the

interconnection

of

a

turntable,

tuner

and

amplifier,

and

speakers

as

the

result

of

wiring,

different

grounding

or

locations

of

components

If

hum

is

experienced

with

your

unit,

disconnect

everything

but

the

speakers

from

the

unit.

Plug

in

the

turntable

and

if

hum

or

howling

appears,

move

the

turntable

away

from

the

speakers

as

much

as

possible.

Note

hum

may

also

be

induced

by

defective

cable

connec¬

tions

or

by

running

the

cables

too

close

to

strong

Ac

field.

When

your

unit

picks

up

noise

during

the

reception

of

broad-casts,

causes

are

mostly

due

to

external

objects

such

as

fluorescent

lamps

and

house

appliances

using

motor

or

thermostat,

or

others

that

may

induce

the

noise.

Either

relocating

the

unit

away

from

the

noise

sources

or

using

an

improved

outdoor

antenna

may

readily

solve

the

problem.

In

the

event

you

cannot

find

the

cause

consult

your

dealer

or

a

qualified

electrician.

VOLTAGE

SELECTION

Not

available

for

U.K.,

Canada

and

Scandinavia

The

unit

is

a

variable

voltage

equipment

that

can

run

on

120V,

220V

or

240V

power

supply.

Your

unit

should

already

be

preset

at

the

proper

voltage

for

use

in

your

area.

However,

if

you

move

to

an

area

where

the

power

supply

voltage

is

different,

consult

your

dealer.

SPECIFICATIONS

Continuous

Power

Output

30

watts*

per

channel,

min.

RMS

both

channels

driven

in¬

to

8

ohms

from

20

to

20.000

Hz

with

no

more

than

0.3%

total

harmonic

distortion.

DIN

Output

50

watts

per

channel

(1

kHz,

4

ohms.

1%

THD)

Music

Power

110

watts

Total

Harmonic

Distortion

No

more

than

0.3%

(contin-

(20

to

20.000

Hz.

from

AUX)uous

rated

power

output)

No

more

than

0.1%

(contin¬

uous

1/2

rated

power

output)

No

more

than

0.2%

(1

watt

per

channel

power

output.

8

ohms)

Intermodulation

Distortion

No

more

than

0.3%

(contm-

(60

Hz:

7

KHz

=

4:1)

uous

rated

power

output)

NO

more

than

0

1%

(con¬

tinuous

1/2

rated

power

out¬

put)

No

more

than

0.2%

(1

watt

per

channel

power

out¬

put.

8

ohms)

Output:

Speaker

4-16

ohms

Headphone

4-16

ohms

Damping

Factor

100(20

to

20.000

Hz.

8

ohms)

Input

Sensitivity/Impedance:

PHONO

MM

3.8

mV/47

kohms

MC

380;i

V/18012

CD

250

mV/20

kohms

TUNER

250

mV/20

kohms

TAPE.

250

mV/20

kohms

AV/AUX

250

mV/20

kohms

Overload

Level

(T.H.D.

0.5%.

Ik

Hz):

PHONO

MM

170

mV

MC

20

mV

CD,

TUNER.

TAPE

.

5V

AV/AUX

.5V

Frequency

Response:

PHONO

20

to

20,000

Hz,

±0.3

dB

(RIAA

STD)

CD.

TUNER,

TAPE

10

to

100.000

Hz.

+

1.0

dB.

-3.0

dB

AV/AUX

10

to

100,000

Hz,

+1.0

dB.

-3.0

dB

Singal

to

Noise

Ratio(IHF,

A

network):

PHONO

MM

80

dB

MC

70

dB

CD.

TUNER

93

dB

TAPE

93

dB

AV/AUX.93

dB

MISCELLANEOUS

Power

Requirement

120V/60

Hz.

220V/50

Hz,

240V/50

Hz.

or

120,

220,

240V/50-60

Hz

(switchable)

(depending

on

destinations)

Power

Consumption

.180

watts

Dimensions

(overall)

444(W)

x

86(H)

x

346(D)mm

17V2"X3

1

3

/32"X

12

26

/32

W

Weight

(net).

7

kg/15.4

lbs

•

Specifications

and

design

subject

to

possible

modification

without

notice.

•

'Measured

pursuant

to

the

Federal

Trade

Commission’s

Trade

Regulation

Rule

or,

Power

Claims

for

Amplifiers

(applicable

to

the

U.S.A.

only).

4