Rotel RB-960BX User manual

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STEREO

POWER

AMPLIFIER

RB-960BX

owners

manual

WARNING

TO

PREVENT

FIRE

OR

SHOCK

HAZARD,

DO

NOT

EXPOSE

THIS

APPLIANCE

TO

RAIN

OR

MOISTURE.

Write

your

SERIAL

NUMBER

here.

The

number

is

located

near

the

name

plate

on

the

rear

panel.

SAFETY

INSTRUCTION

1.

Read

Instructions-

All

the

safety

and

operating

in¬

structions

should

be

read

before

the

appliance

is

operated.

2.

Retain

Instructions

-

The

safety

and

operating

instruc¬

tions

should

be

retained

for

future

reference.

3.

Heed

Warnings—

A

ll

warnings

on

the

appliance

and

in

the

operating

instructions

should

be

adhered

to.

4.

Follow

Instructions-

All

operating

and

use

instruc¬

tions

should

be

followed.

5.

Water

and

Moisture-

The

appliance

should

not

be

used

near

water

-

for

example,

near

a

bathtub,

washbowl

kitchen

sink,

laundry

tub,

in

a

wet

basement,

or

near

a

swimming

pool,

and

the

like.

6.

Carts

and

Stands

-

t

he

ap-

PORTABLE

CART

WARNING

■

Wg

jPL.

S3I2SA

tion

to

overturn.

7.

Wall

or

Ceilling

Mounting

-

The

appliance

should

be

mounted

to

a

wall

or

ceilling

only

as

recommended

by

the

manufacturer.

8.

Ventilation

-

T

he

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

instal¬

lation

such

as

a

bookcase

or

cabinet

that

may

impede

the

flow

of

air

through

the

ventilation

openings.

9.

Heat

-

The

appliance

should

be

situated

away

from

heat

sources

such

as

radiators,

heat

registers,

stoves,

or

other

appliances

(including

amplifiers)

that

produce

heat.

10.

Power

Sources

-

The

appliance

should

be

connected

to

a

power

supply

only

of

the

type

described

in

the

operat¬

ing

instructions

or

as

marked

on

the

appliance.

11.

Grounding

or

Polarization-

The

precautions

that

should

be

taken

so

that

the

grounding

or

polarization

means

of

an

appliance

is

not

defeated.

12.

Power-Cord

Protection

-

Power-supply

cords

should

be

routed

so

that

thay

are

not

likely

to

be

walked

on

or

pinched

by

items

placed

upon

or

against

them,

paying

particular

attention

to

cords

at

plugs,

convenience

recep¬

tacles,

and

the

point

where

thay

exit

from

the

appliance.

13.

Cleaning

-

The

appliance

should

be

cleaned

only

as

recommended

by

the

manufacturer.

14.

Nonuse

Periods—

The

power

cord

of

the

appliance

should

be

unplugged

from

the

outlet

when

left

unused

for

a

long

period

of

time.

15.

Object

and

Liquid

Entry-

Care

should

be

taken

so

that

objects

do

not

fall

and

liquids

are

not

spilled

into

the

enclosure

through

openings.

16.

Damage

Requiring

Service-

The

appliance

should

be

serviced

by

qualified

factory

authorized

service

person¬

nel

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

pliance

should

be

used

only

with

a

cart

or

stand

that

is

recommended

by

the

manufacturer.

6A.

An

appliance

and

cart

com¬

bination

should

be

moved

with

care.

Quick

stops,

excessive

force,

and

uneven

surfaces

may

cause

the

appliance

and

cart

combina-

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

enclosure

damaged.

17.

Servicing

-

The

user

should

not

attempt

to

service

the

appliance

beyond

that

described

in

the

operating

instruc¬

tions.

All

other

servicing

should

be

referred

to

qualified

factory

authorized

service

personnel.

WARNING:

To

reduce

the

risk

of

fire

or

electric

shock,

do

not

expose

this

appliance

to

rain

or

moisture

CAUTION

RISK

OF

ELECTRIC

SHOCK

00

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.

•

Explanation

of

Graphical

Symbols

The

lightning

flash

with

arrowhead

sym¬

bol,within

an

equilateral

triangle,is

In¬

tended

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.

The

exclamation

point

within

an

equi¬

lateral

triangle

is

intended

to

alert

the

user

to

the

presence

of

important

operating

and

maintenance(servicing)

instructions

in

the

literature

accompanying

the

ap¬

pliance.

EXCLUSIVE

NOTE

FOR

U.K.

if

your

unit

comes

with

a

2-core

mains

lead

without

a

plug,

neither

core

is

to

be

connected

to

the

earth

terminal

of

a

three

pin

plug,

make

certain

that

they

are

connected,

according

to

the

following

instruction,

to

the

proper

terminals.

Check

that

the

terminals

are

screwed

down

firmly

and

no

loose

strands

of

wire

are

present.

IMPORTANT:

The

wires

in

this

mains

lead

are

coloured

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

proceed

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

connected

to

the

terminal

which

is

marked

with

the

letter

L

or

coloured

BROWN

or

RED.

1

ENGLISH

STEREO

POWER

AMPLIFIER

RB-960BX

A

WORD

FROM

ROTEL

Rotel

take

this

opportunity

to

thank

you

for

choosing

our

equipment

for

your

home

entertainment.

Rotel

equipment

represents

a

very

high

state

of

the

art

in

sound

reproduction,

as

the

result

of

our

everlasting

deter¬

mination

to

achieve

the

truly

hi-fi

performance.

Please

enjoy

the

sound

Rotel

have

created

for

many

years

to

■

come.

To

make

sure

you

get

the

most

out

of

your

equipment,

please

read

this

owner’s

manual

carefully

before

you

at¬

tempt

any

connections.

BEFORE

CONNECTIONS

1.

Place

for

Installation

Ensure

to

place

the

unit

in

a

flat

surface

where

it

is

free

form

humidity,

vibration,

high

temperature

and

not

exposed

to

direct

sunlight.

Also,

be

careful

not

to

place

the

unit

in

a

highly

enclosed

area

without

adequate

ventilation

around

the

unit.

Do

not

block

the

ventilation

openings

at

the

top

and

the

bottom

of

the

unit

to

prevent

excessive

heat

built

up.

2.

Electrical

Requirements

Your

equipment

has

been

designed

to

be

powered

by

the

local

AC

Voltage.

Check

the

setting

of

your

unit

by

looking

at

the

rear

panel

name

plate.

Never

try

to

plug

the

unit

into

an

outlet

of

higher

voltage,

as

this

causes

a

serious

fire

hazard.

Consult

your

dealer

if

in

doubt.

3.

Connecting

the

Power

Cord

Always

handle

the

Power

cord

with

care.

Ensure

to

con¬

nect

the

cord

to

the

household

wall

outlet.

When

plugging

and

unplugging

make

sure

the

power

switch

on

the

unit

is

turned

off.

4.

Do

not

Open

the

Cabinet

There

are

no

user-serviceable

parts

inside

the

cabinet

of

the

unit.

Do

not

attempt

to

open

the

cabinet

or

tamper

with

the

internal

components.

If

water

or

foreign

object

falls

inside

the

unit

by

accident,

disconnect

the

power

cord

immediately

and

consult

a

qualified

electrician

or

your

dealer.

5.

Cleaning

Your

Unit

If

your

unit

becomes

dirty,

wipe

it

gently

with

a

soft,

dry

cloth.

Never

use

solvents

of

any

kind.

6.

Stereo

and

Mono

Operations

The

power

amplifier

can

be

used

as

either

normal

stereo

or

bridged

mono

amplifier.

The

unit

comes

factory-set

as

the

stereo

amplifier

with

the

slide

BRIDGED

switch

on

the

back

of

the

unit

set

at

the

STEREO

position.

Do

not

tamper

with

the

switch,

unless

you

wish

to

use

the

unit

as

the

mono

amplifier

in

which

case

reset

the

switch

to

the

MONO

position.

Do

not

connect

speakers

before

the

switch

posi¬

tion

is

confirmed

set

correctly

according

to

your

choice.

NOTE:

Two

RB960BX

bridged

mono

amplifiers

must

be

used

for

a

stereo

operation

with

full

compatibility.

7.

AC

Outlet

Receptacles

(applicable

to

U.S.A.,

Canada,

and

where

approved

for

the

usage)

There

are

two

sets

of

the

AC

outlets

on

the

back

panel

of

the

unit,

through

which

power

can

be

supplied

to

equip¬

ments

connected

to

the

unit

such

as

your

turntable

and

CD

player,

Each

AC

outlet

is

the

switched

type,

so

turning

the

power

on

and

off

is

controlled

by

the

power

switch

of

the

unit.

The

total

power

consumption

of

the

equipments

must

not

exceed

the

rating

of

200

watts

maximum.

Never

connect

a

power

amplifier

to

the

AC

outlet.

CONNECTIONS

1.

Connecting

Components

The

illustration

shows

what

audio

components

you

can

connect

to

the

rear

panel

of

the

unit

and

how

they

should

be

properly

hooked

up

via

RCA

type

pin

cords.

Ensure

that

the

Left

and

the

Right

channels

are

correctly

matched

between

the

RCA

type

sockets

of

the

unit

and

those

on

the

components.

2.

Connecting

Speakers

a)

Use

speakers

with

impedance

ratings

of

4

to

8

ohms.

However,

if

you

wish

to

operate

the

unit

in

the

bridged

mode

as

the

mono

power

amplifier

with

only

one

speaker,

ensure

the

speaker

is

rated

8

ohms

minimum.

Never

con¬

nect

a

speaker

with

lower

impedance

than

8

ohms

in

this

case.

The

speaker

impedance

is

indicated

on

the

back

or

in

the

instruction

manual

of

the

speaker.

b)

Do

not

use

speakers

that

have

very

high

capacitive

load,

say,

over

0.1

microfarads,

as

it

may

cause

a

damage

to

the

power

amplifier.

Normally,

most

speakers

are

low

capacitance

type,

but

there

are

a

few

which

do

have

excessively

high

capacitance.

c)

Use

proper

speaker

cords

normally

your

dealer

will

recommend,

with

as

low

capacitance

content

as

possible.

The

speaker

terminal

posts

provided

on

the

back

of

the

unit

can

also

take

banana

plugs.

d)

If

connecting

the

speaker

cords

directly

with

the

bare

wire

ends,

suggest

you

strip

about

1cm

of

the

insulation

shield

cover

from

the

ends

of

the

speaker

cords,

Twist

any

exposed

strands

tightly,

and

insert

the

ends

properly

to

the

terminal

posts.

e)

When

using

the

unit

as

the

stereo

power

amplifier:

make

sure

the

BRIDGED

switch

is

set

correctly

at

the

STEREO

position.

Connect

the

Left

and

the

Right

Channels

correctly

between

the

unit

and

the

speakers,

and

ensure

for

each

channel

the

"

+

"

and

the

are

also

correctly

matched.

Check

that

the

speaker

cord

ends

(exposed

tips)

on

the

terminal

posts

are

not

stray

and

touching

one

another,

SPEAKER/RIGHT

SPEAKER/LEFT

which

will

cause

short

circuits

and

may

damage

both

the

unit

and

the

speakers.

f)

When

using

the

unit

as

the

mono

power

amplifier

(bridged

connection):

make

sure

the

BRIDGED

switch

is

set

correctly

at

the

MONO

position.

Connect

only

one

speaker

as

marked

on

the

back

panel

of

the

unit.

Connect

the

"

+

"

speaker

lead

wire

to

the

LEFT

"

+

"

terminal

post

and

the

speaker

lead

wire

to

the

RIGHT

"

+

"

terminal

post.

Do

not

use

any

speaker

with

a

com¬

mon

grounding

sys¬

tem;

consult

your

dealer

when

in

doubt.

2.

Connecting

Preamplifier

a)

It

is

recommended

to

use

the

Rotel’s

RC-960BX

preamplifier

which

is

perfectly

tuned

to

match

with

the

power

amplifier

in

sound

quality

and

operation.

b)

See

the

illustrations

for

3

modes

of

the

connections

possible:

1)

The

common

stereo

mode

using

one

preamplifier

and

one

power

amplifier.

2)

The

"BRIDGED"

stereo

mode

using

one

preamplfier

and

two

mono

power

amplifiers.

3)

The

"BI-AMPING"

mode

with

one

preamplifier,

which

has

two

sets

of

outputs

connected

in

parallel,

like

the

RC-960BX,

and

two

stereo

power

amplifiers,

one

driving

the

tweeters

and

the

other

driving

the

woofers

of

the

speakers,

which

have

separate

connectors

for

the

tweeters

and

the

woofers.

SPEAKER

1)

When

using

the

unit

as

stereo

power

amplifier

(RC-960BX)

(RB-960BX)

2)

When

using

the

unit

as

monaural

amplifier

(bridge

connection)

(RB-960BX)

SPEAKER

RIGHT

LEFT

SPEAKER/RIGHT

3)

When

using

the

unit

as

stereo

amplifier

for

bi-amplification

(RB-960BX)

SPEAKER/LEFT

SPEAKER/RIGHT

3

c)

Ensure

that

regardless

of

the

mode

you

choose

to

use

the

correct

connections

are

done.

SWITCH

AND

INDICATORS

(1)

Power

Button

Press

this

button

to

turn

on

and

off

the

unit.

(2)

Power

Indicator

Glows

when

power

is

turned

on

with

the

power

button.

(3)

Bridged

Mono

Indicator

Lights

up

to

show

that

the

BRIDGED

switch

on

the

back

of

the

unit

is

set

to

the

MONO

(bridged)

position.

WORDS

ON

OPERATIONS

Precautions

1.

Before

commencing

operation,

check

to

see

if

all

con¬

nections

are

properly

made.

2.

Always

ensure

to

set

the

Volume

control

of

the

con¬

nected

preamplifier

to

the

minimum

position

before

turning

on

the

Power

switch.

HUM

AND

NOISE

In

any

high

fidelity

installations,

hum

may

be

caused

by

the

interconnection

of

turntable,

tuner,

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

tiie

unit.

Plug

in

the

turntable

and

if

hum

or

howling

appears,

move

it

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

broadcasts,

causes

are

mostly

due

to

external

objects

such

as

fluoresent

lamps

and

house

appliances

using

motor

or

thermostat,

or

others

than

may

induce

noise.

Either

relocating

the

unit

away

from

the

noise

sources

or

using

an

improved

outdoor

antenna

may

readily

resolve

the

problem.

In

the

event

you

cannot

find

the

cause,consult

your

dealer

or

a

qualified

electrician.

SPECIFICATIONS

RB-960BX

Continuous

Power

Output...60

watts*

per

channel,

min.

RMS

both

channels

driven

into

8

ohms

from

20

to

20,000

Hz

with

no

more

than

0.03%

total

harmonic

distortion.

DIN

Output.110

watts

per

channel

(1

kHz,

4

ohms,

1%

THD)

Peak

Current.30

A

(0.1

ohms,

10

usee,

1

pulse)

Power

Output

(BTL).180

watts

(mono)

min.

RMS

driven

into

8

ohms

from

20

to

20,000

Hz

with

no

more

than

0.03%

total

harmonic

distortion.

Total

Harmonic

Distortion...No

more

than

0.03%

(contin-

(20

to

20,000Hz)

uous

rated

power

output)

No

more

than

0.03%

(continuous

1/2

rated

power

output)

No

more

than

0.05%

(1

watt

per

channel

power

output,

8

ohms)

Intermodulation

Distortion...No

more

than

0.05%

(contin-

(60

Hz:

7

kHz

=

4:1)

uous

rated

power

output)

No

more

than

0.05%

(continuous

1/2

rated

power

output)

No

more

than

0.05%

(1

watt

per

channel

power

output,

8

ohms)

Output:

Speaker.8

ohms

nominal

Damping

Factor.280

(20

to

20,000

Hz,

8

oHms)

Input

Sensitivity/

Impedance.1.0

V/

27

kohms

Frequency

Response.15

to

100,000

Hz,

+

0

dB,

-1.0

dB

Signal

to

Noise

Ratio.116

dB

(IHF,

A

network)

MISCELLANEOUS

Power

Requirement.120

V/

60

Hz,

220

V/

50

Hz,

240

V/

50

Hz

(depending

on

destinations)

Power

Consumption.300

watts

Dimensions

(overall).440

(W)

x

92

(H)

x

334

(D)

mm

17-3/8"

x

3-5/8"

x

13-3/16"

Weight

(net).9.2

kg

/

20.2

lbs.

•

Specifications

and

design

subject

to

possible

modifica¬

tion

without

notice.

•

‘Measured

pursuant

to

the

Federal

Trade

Commis¬

sion’s

Trade

Regulation

Rule

or,

Power

Claims

for

Amplifiers

(applicable

to

the

U.S.A.

only).

4