Rotel RB-990BX User manual

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1

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RDTFI

h/'T^'

STEREO

POWER

AMPLIFIER

RB-990BX

ENGLISH.

1

06UTSCH.

5

FRANIJAIS.

8

...

11

I

WARNING

'

TO

PREVENT

FIRE

OR

SHOCK

HAZARD,

DO

NOT

EXPOSE

THIS

APPUANCE

TO

RAIN

OR

MOISTURE

Write

your

SERIAL

NUMBER

here.

The

numl>er

Is

located

near

the

name

pme

on

the

rear

oanei.

SAFETY

INSTRUCTIONS

CAUTION:

TO

REDUCE

THE

RISK

OF

ELECTRIC

SHOCK.

DO

NOT

REMOVE

COVER

(OR

BACK).

NO

USER.SERVICEABLE

PARTS

INSIDE.

REFER

SERVICING

TO

OUAUFIED

SERVICE

PERSONNEL.

•

Explanation

ol

Graphical

Symbols

A

r

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itMi)

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AirswtMM

10

ai«n

>«u

(0

ino

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Mr

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i

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«<«»«•«

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oftd

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itt

1M

•••

rslur*

WOCTpiiljiPtg

M

MVMnco

EXCLUSIVE

MOTE

FOR

U.K.

\l

your

unii

cccrt«s

mth

a

2<w^

cable

withoui

a

Qkig.

rriahe

certain

live

and

neutral

leads

are

connecled

lo

the

proper

lerminaJs,

Check

ihat

the

lerminais

are

screwed

down

firmly

and

no

toose

strands

or

wire

are

present.

IMPOf^TANT:

The

wires

in

this

mains

lead

arecoloured

in

accordar>ca

with

ihe

Icrilowing

cede:

8LUS:

NEUTRAL

anOWNr

LIVE

As

the

colours

ol

the

wires

m

the

m

uns

lead

of

this

ap<

paraius

may

nol

correspond

wiin

thv

coiogred

markings

ideniilying

lha

terminals

in

your

plug

proceed

as

follows

The

wrre

which

is

coloured

6LUE

most

be

connected

to

(he

terminal

which

is

marked

with

me

latter

N

or

coloured

BLUE

or

SLACK,

The

wire

which

ii.

coloured

BROWN

musi

be

connected

to

the

lerminal

which

is

marked

with

the

lerrer

L

or

colour

BROWN

or

RED

1.

Read

insiruciions—

All

ihe

safety

and

operaurig

mstruc*

itons

should

be

read

Oelora

lha

appliance

is

operated

2.

Retain

Instructions

—

The

safely

and

operaling

insiruc*

(ions

should

be

retained

for

luture

reference.

3.

Head

Warnings

All

warnings

on

the

appliance

artd

in

the

operating

inslruetidns

should

be

adhered

lo.

4.

Follow

instructions

—

All

operating

and

other

insirucllons

should

be

followed.

$.

water

and

Moisture

—

The

applianca

should

not

be

used

near

water

—

for

example,

near

a

balhlub.

washbowl,

kitchen

sink,

laundry

luo.

in

a

wet

casement,

or

near

a

swimming

pod.

eic.

6.

Carts

ar>0

Stands

~

The

apphance

siiduid

be

used

onty

with

a

carl

or

siand

lhal

is

reccinmended

by

ihe

manufacturer,

7.

Wall

or

Ceiling

Mounting

—

The

appliance

should

be

mounted

to

a

wall

or

ceiling

only

as

recommended

by

(he

manufaclurer.

a.

Ventilation

—

The

appliance

should

be

situated

so

thai

its

toealion

or

position

does

not

interfere

with

its

proper

ventilation.

For

exampte,

the

appliance

^ould

not

be

situated

on

a

bed.

sola.

rug.

or

simitar

surface

ihat

may

block

the

vent'lation

openings:

or

placed

in

a

buift*in

ih*

staitaiioh,

such

as

a

bookcase

or

cabmei

that

may

im*

pede

tha

flow

of

air

through

the

veniilation

openings.

9,

H

eal

~

The

appliance

should

be

situated

away

from

heat

sources

such

as

radraicrs,

sieves,

or

other

appliances

that

produce

heal.

10.

Power

Sources

—

The

appliance

should

be

connected

lo

a

power

supply

only

ol

the

type

described

in

(he

oper¬

ating

instructiorts

or

as

marked

on

the

appliance.

11.

Power-Cord

Prelection

—

Power*supply

cords

shotHd

be

rouied

so

thal

they

are

not

likely

to

be

walked

on

or

pinched

by

ilema

ptacad

upon

or

agamsl

ihem.

paying

particular

attention

to

cords

at

plugs.

conven>er>ce

recep*

tacles.

and

the

POini

where

they

exit

from

the

appliance.

12.

Cteaning

—

The

appliance

shcufd

t>

cleaned

only

as

recommended

by

ihe

manulaC'urer.

13.

Nonuse

Periods

—

The

power

cord

ol

the

appliance

should

be

unplugged

from

the

ouHei

when

left

unused

for

a

long

period

ol

(ime.

14.

Object

and

Lipuid

Eniry

—

Care

should

'K

laken

so

thai

objects

do

not

fan

mio

and

liquids

not

*oi'ied

into

me

m*

side

of

Ihe

appliance.

15.

Damage

Reguinng

Service

—

The

apjiliance

should

be

serviced

by

quaitiied

service

personr.a!

when;

A.

The

power-supply

cord

or

me

plug

has

been

damaged:

cr

6,

Obiects

have

f.tllen,

or

liquid

has

been

spilled

into

the

appliance:

or

C.

The

applience

has

been

exposed

to

rain:

or

D.

The

appliance

does

nol

appear

to

operate

normally

or

exhibits

a

marked

change

m

performance:

or

E.

Tha

appliance

has

been

droppM.

or

the

cabinet

damaged.

16.

Servicing

—

The

user

should

not

attempt

to

service

the

appliance

beyorui

those

means

described

in

the

oper¬

ating

instructions

Ati

other

servicing

should

be

referred

lo

qualified

service

personnel.

17.

Grounding

or

Polarization

—

The

precautions

that

should

be

taken

so

thai

the

grounding

or

polanzation

means

ol

an

appliance

is

r>ot

defeated.

STEREO

POWER

AMPLIFIER

RB-990BX

ENGIISH

INTRODUCTION

We

al

Rolel

want

lo

thank

you

for

purchaaing

our

audio

product.

Rotel

audio

producla

are

designed

lo

use

the

latest

eleclronic

technology,

and

they

incorporate

our

long

etrperience

as

a

specialist

manufacturer

of

audio

equipment.

We

are

confident

mat

you

will

find

salislaction

in

the

high

quality

sound

and

top

performance,

and

that

you

will

find

pleasure

in

Ihe

funo-

lional

beauty

achieved

through

human-engineering

ooncept.

Before

starting

operation,

please

read

this

Instruction

manual

thoroughJy

and

acquaint

yourself

with

the

proper

mode

of

us¬

ing

the

unit

and

all

its

connections.

We

hope

you

will

enjoy

top-notch

performance

for

many

years

to

come.

SPEAKERS

When

using

the

RB-990BX

as

a

stereo

power

amplitier,

please

use

a

speaker

system

with

an

Impedance

rarrge

014-16

ohms.

The

speakers’

Impedance

specifications

can

be

found

on

the

plats

at

the

rear

ol

the

speskets

or

In

the

user’s

manual.

Please

check

lo

be

sure

they

are

of

the

correct

Impedance.

CABLES

To

ensure

that

the

RB-990BX

operates

al

its

full

potential

and

you

can

enjoy

the

most

exceptional

sound

quality

from

your

system,

we

strongly

recommend

using

high-quality

RCA

pin

cables

lo

connect

the

RB-990BXtothe

control

amplitier

and

low-capacity,

low-impedance

speaker

cables.

BEFORE

ENJOYMENT/POWER

SUPPLY

Follow

the

instructions

below

for

maximum

safety:

t.

Use

a

wall

outlet

for

power

supply

Be

sure

to

connect

the

AC

line

cord

to

a

house-hold

wall

out-

let.

Be

certain

mat

the

outlet

voltage

matches

me

electrical

rating

of

Ihe

unit,

found

on

Ihe

rear

panel

name

plate.

2.

Connecting

and

removing

AC

cord

Be

sure

lo

connect

or

disconnect

the

AC

line

cord

only

after

turning

off

the

power

switch

lo

prevent

possible

shock

noise

or

damage

to

the

speakers.

3.

Ventilate

the

unit

welt

Never

block

any

verlilalion

holes

al

Ihe

lop

and

bottom

of

Ihe

unit.

Be

sure

also

to

provide

ample

ventilation

space

around

the

unit.

Poweniilation

may

result

in

damage

due

lo

exces¬

sive

heal,

4.

Do

not

open

the

cabinet

In

order

to

avoid

electric

shock

or

damage

to

Ihe

component,

never

open

the

cabinet.

Ilaloreign

oOjeci

tells

Inside

the

unit

by

mtstake,

turn

the

power

off.

disconnect

Ihe

wall

plug,

ano

consult

a

qualified

electrician

or

your

dealer,

5.

Installation

Be

sure

lo

place

the

unit

In

a

level

and

flat

place

where

it

is

free

from

humidity.

viDration,

high

temperature

and

not

ex¬

posed

10

direct

sunlight.

Be

carelul

not

to

place

the

unit

in

a

highly

enclosed

place

such

as

near

a

wail

or

on

a

bookshelf.

A

poor

ventilation

will

cause

undesirable

effects

to

the

unit.

6.

Moving

Ihe

unit

When

transporting,

remove

Ihe

AC

cord

from

me

wail

outlet

and

all

other

connected

cords

on

me

rear

panel

to

prevent

wire

breakage

and

short

circuits.

7.

If

the

unit

gets

wet

If

Ihe

unit

should

get

wet,

immediately

disconnect

the

AC

cord,

and

consult

your

dealer

or

a

qualified

eleclrcian.

8.

Cleaning

and

maintenance

Oo

not

use

chemicals

such

as

benzine

or

Ihinners

on

the

Ironl

penel.

Always

use

a

sett,

dry

cloth

to

clean

Ihe

unit.

9.

Owner’s

manual

Keep

me

owner's

manual

near

Ihe

unit,

and

record

me

serial

number

(found

on

the

rear

panel)

on

the

cover.

SPEAKERS

AND

PREAMPLIFIER

CONNECTION

1.

Conned

the

speaker

cord

of

me

rigtil

speaker

lo

me

RIGHT

terminals

and

the

cord

of

the

left

speaker

to

me

LEFT

terminals

of

SPEAKERS

terminals.

Note

me

+

-

connection

(+

lead

lo

+

terminal

and

-

lead

lo

-

terminal).

2.

Usin9

two

cables

wim

phono

connectors,

conned

the

OUTPLfT

L

jack

of

the

preamplifier

lo

me

INPUT

LEFT

jack

of

this

unit

and

the

OUTPUT

R

jack

of

the

preamplifier

to

the

INPUT

RIGHT

jack

of

this

unit.

HOW

TO

CONNECT

THE

SPEAKER

CORDS

TO

THE

SPEAKERS

TERMINALS

strip

the

cord

end

and

twist

leads

lirmly.

then

connect

it

to

the

SPEAKERS

terminal.

The

SPEAKERS

terminals

of

this

unit

are

screw

type.

Turn

the

screw

counterclockwise

and

insert

the

cord

end.

Then

lighten

the

screw

firmly

by

turning

clockwise

so

that

the

speaker

cord

cannot

be

pulled

out

accidentally.

SPEAKER

CONTROL

AMPLIFIER

LEFT

RC-980eX

SPEAKER

RIGHT

SWITCHES

AND

CONTROLS

power,

wnen

me

Indicaior

goes

off.

it

means

the

unit

is

in

the

normal

operating

stale.

(1)

Power

Button

The

indicator

glows

when

abnormally

high

temperature

is

built

Depress

this

bullon

lo

turn

on

the

power

In

the

unit.

Press

up

inside

the

unit.

In

such

a

case,

the

indloalor

will

remain

the

button

a

second

time

lo

release

it

and

lo

cut

off

the

power.

on

until

me

temperature

inside

me

unit

drops

to

a

nonnaf

level.

(2)

Power

Indicator

When

the

indicator

goes

off,

it

indicates

the

unit

has

returned

Glows

when

power

is

fumed

on

with

the

power

button.

oberaling

slate.

(3)

Protectton

Indicator

The

indicator

normally

lights

for

several

seconds

upon

lurn.

OPERATION

•

Before

commencing

ogeralion,

check

lo

see

If

sJI

con*

nectione

a/e

properly

made.

*

Before

luming

on

ihe

power

in

the

unit,

always

be

sure

to

turn

down

the

preamplifier

votume

control

to

minimum.

1.

Turn

on

ihe

preamplifier,

2.

Turn

on

the

RS*990ex.

3.

Reproduce

a

desired

source,

and

raise

the

volume

level

on

the

preampiifler.

HUM

AND

NOISE

In

any

high

fidelity

ineiallaiion,

hum

may

be

caused

by

the

irtterconnecbon

of

a

lurr^table.

tuner

and

amptifier,

ar)d

speak*

ers

as

the

result

ol

wiring,

dilfereni

grounding

or

locations

of

componertis.

If

hum

is

experienced

with

your

unit,

disconrtect

everything

bul

ihe

speakers

from

the

unit.

Plug

in

the

turniabie

and

if

hum

or

howling

appears,

move

the

turnlaPte

away

Irom

Ihe

speakers

as

much

as

possible.

Ncle

hum

may

also

be

Induced

by

defective

cable

con

nee-

tions

or

by

running

the

cables

too

close

lo

strong

AC

field.

When

your

uhH

picks

up

rtpise

during

the

reception

ol

broad*

casts,

causes

are

mostly

dua

to

external

objects

such

as

fluorescent

lamps

and

iTouse

appliances

using

motor

or

iher*

mostai,

or

others

that

may

induce

the

r>ol$e.

Siher

reiocaiing

the

unii

away

from

ihe

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

qualined

eleci/ician.

PROTECTION

CIRCUIT

The

RB*990&X

Incorporates

thermal

protector

to

prevent

accident

or

damage.

If

lor

some

reason

the

protection

cir*

cult

Is

actevated,

there

will

be

a

sudden

cut'Off

of

sound

from

the

speakers,

end

the

protection

indicator

will

light

up.

If

no

sound

Is

produced,

the

reason

may

be

due

to

the

lune*

tioning

of

the

protection

circuit.

First,

turn

off

the

power

and

disconnect

the

plug

Irom

the

electrical

outlet.

Then

locate

and

remedy

the

cause

of

the

trouble.

When

the

thermal

pro*

tecior

is

activated,

the

unit

will

start

functioning

automati¬

cally

alter

the

temperature

is

lowered

again.

If

the

protection

circuit

is

activated

again

despite

taking

the

above

action,

cut

off

the

power

supply

from

your

enure

audio

system

and

consult

your

dealer

or

a

qualified

electrician.

Note:

The

protection

circuit

vrill

normally

operate

to

prevent

a

popping

noise

Irom

being

generated

upon

turning

on

the

power.

No

sound

is

produced

for

several

seconds

after

turn*on.

SPECIFICATIONS

Continuous

Powsf

Output...

200

watts'

per

channel,

min.

RMS

both

channels

driven

into

B

ohms

from

20

lo

20,000

Hz

with

no

more

than

0.03%

total

harmonic

clsiortion.

DIN

Power

Oulpul.

330

walls

per

channel

(1hHz,

a

ohms,

1%

TKD)

Peak

Current.120

A

|0.1

ohms,

10

/.sec,

1

pulse)

Total

Harmonic

Distortion

(20

lo

20,000

Hz).

No

more

lhan

0.03%

(con¬

tinuous

rated

power

output)

No

mote

than

0.01%

(con¬

tinuous

1/2

rated

power

output)

No

more

than

0.02%

(t

watt

per

channel

power

output,

a

ohms)

jnlermoduration

Distortion

(60

Hz

;

7

kHz-4:1).No

more

lhan

0.02%

(con¬

tinuous

rated

power

output)

No

more

lhan

0.02%

(con¬

tinuous

1/2

rated

power

out

pul)

No

more

than

0.02%

(1

wait

per

channel

power

output,

8

ohms)

Output.Speaker

8

ohms

nominal

Damping

Factor.

1,000

(20

lo

20,000

Hz,

8

ohms)

Input

Sensitivity/

Impedance.l.OV/33

kohms

Freduency

Response.4lo

100,000

Hz,

tO.SdB,

-3-0

dB

Signal-to-Noise

Patio

(IHFAnetwork).120

dB

Power

Requirement.120V/60

Hz.

220

V/50

Hz,

240V/50

Hz

Of

1

MV/SO

Hz-

60

Hz

(depending

on

destinations)

Powar

Consumption.

550

wans

Dimensions

(overall).

440(W)x

120{H}x37S(D)mm

17-5/16'x4-23/32'x

14-3/4*

Weight

(net).15.5

kg/34,1

lbs.

•

Specifications

and

design

subject

lo

possible

modilicatlon

without

notice.

'

Measured

pursuant

to

the

Federal

Trade

Commission's

Trade

Regulation

Rule

on

Power

Claims

tor

Amplifiers

{applicable

to

the

U.S.A.

only).