Rotel RA-935BX User manual

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STEREO

INTEGRATED

AMPLIFIER_

RA-935BX

owners,

manual

j

i

ENGLISH..

DEUTSGH.

FRANQAIS

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.

©

Volume

Control

Used

to

regulate

the

volume

level.

Turn

clockwise

to

increase

the

level

and

counterclockwise

to

reduce

it.

The

control

permits

either

the

combined

or

the

separate

adjustment

of

the

left

and

the

right

channels.

Normally

turn

the

dual

concentric

knob

as

one

for

the

combined

adjustment.

When

it

is

necessary

for

the

separate

adjustment

of

each

channel

due

to

unbalanced

sound

levels

between

both

channels,

hold

the

front

part

of

the

knob

with

one

h

and

and

turn

the

rear

part

of

the

knob

independently.

Due

to

the

high

quality

material

and

construction

used

on

the

volume

control

for

sound

quality,

the

sound

level

will

not

rise

sharply

at

low

settings.

Normally,

the

control

is

recommended

to

be

set

between

11:30

to

2:00

o’clock

position

with

other

Rotel's

equipments

connected,

but

a

finite

adjustment

will

depend

on

the

sensitivity

of

your

speakers.

©

Recording

Selector

Permits

choose

any

input

connected

to

the

unit

and

feed

it

directly

to

the

TAPE

1

and

TAPE

2

outputs

on

the

back

of

the

unit

for

recording

the

selected

input.

However,

note

the

TAPE

1

input

can

be

recorded

by

the

TAPE

2

output,

but

the

TAPE

2

input

cannot

be

recorded

by

the

TAPE

1

output.

It

is

possible

to

record

one

source,

e.g.,

CD

or

TUNER,

while

listening

to

a

different

source

such

as

AUX.

When

not

recording,

ensure

to

set

the

selector

at

the

center

OFF

position

to

cut

off

the

circuit

completely

from

the

signal

path.

©

Listening

Selector

Allows

choose

any

input

connected

to

the

unit.

The

selector

operates

independently

from

the

Recording

selector

above,

so

you

can

listen

to

one

source

while

recording

another

different

source.

WORDS

ON

OPERATIONS

Precautions

1,

Before

commencing

operation,

check

to

see

if

all

connections

are

properly

made.

2,

Always

ensure

to

set

the

Volume

control

to

the

minimum

position

before

turning

on

the

Power

switch.

3,

Make

sure

the

Recording

selector

is

at

the

OFF

position

when

listening

to

any

source

and

not

recording.

Tuner

Reception

1.

Set

to

the

TUNER

position

on

the

Listening

selector.

2.

If

possible,

turn

your

tuner's

power

off

when

not

operating

it.

Although

crosstalks

are

held

to

minimum

by

the

circuit

design,

this

is

the

perfect

way

to

cut

off

the

signal

from

the

radio

reception

bleeding

through

to

the

other

inputs

connected

to

the

main

unit.

Operating

CD

Player

1.

Set

to

the

CD

position

on

the

Listening

selector.

2.

Read

the

instruction

manual

of

your

player

carefully

to

maximize

the

full

potential,

3.

Using

higher

quality

interconnecting

cords

between

your

CD

player

and

the

amplifier

may

often

improve

sound

quality.

Tape

Deck

Playback

1.

Set

to

the

TAPE

1

or

TAPE

2

position

on

the

Listening

selector

depending

on

which

input

your

tape

deck

is

connected.

2.

Use

only

a

good

quality

cassette

tape

deck

(in

terms

of

sound

quality)

or

a

DAT

deck,

etc.

for

maximizing

the

full

potential

of

the

amplifier.

3.

Using

higher

quality

interconnecting

cords

between

your

tape

deck

and

the

amplifier

may

often

improve

sound

Recording

with

Tape

Deck

1.

Set

the

Recording

selector

to

any

input

you

wish

to

record,

and

proceed

the

recording

with

your

tape

deck

connected

to

the

TAPE

1

or

the

TAPE

2

outputs.

If

you

have

two

tape

decks,

you

can

only

record

the

TAPE

1

inputs

with

the

TAPE

2

outputs.

The

TAPE

2

inputs

cannot

be

recorded

by

the

TAPE

1

outputs.

2.

During

recording,

operation

of

the

Volume

control

have

no

effect

on

the

recorded

signal

being

fed

to

the

TAPE

1

or

TAPE

2

outputs.

3.

You

may

monitor

recording

signals

by

setting

the

Listening

selector

to

the

same

input

as

the

Recording

selector.

For

example

if

you

are

recording

CD,

set

the

Listening

selector

to

CD.

Dubbing

When

two

tape

decks

are

connected,

you

can

dub

(tape-

to-tape

copy)

one

tape

deck

to

the

other

tape

deck.

Note

the

dubbing

can

only

be

done

from

the

deck

connected

to

the

TAPE

1

input

to

the

other

deck

connected

to

the

TAPE

2

output.

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

the

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

connections

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

fluorescent

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.

DO

SWITCHES

AND

CONTROLS

0

Speaker

Remote

Button

0

Power

Button

Press

the

button

to

activate

the

speakers

connected

to

the

Press

this

button

to

turn

on

and

off

the

unit.

REMOTE

speaker

terminal

posts

on

the

back

panel.

Release

_

the

button

to

cut

off

the

sound

from

the

remote

speakers.

©

Power

Indicator

Glows

when

power

is

turned

on

with

the

power

button.

(|)

Phones

Jack

Plug

your

headphones

to

this

jack,

making

sure

it

has

the

correct

type

connector.

For

private

listening,

if

your

speakers

are

connected

to

the

DIRECT

speaker

terminal

posts

on

the

back

panel,

you

have

to

disconnect

the

speakers

off

the

terminal

posts

to

cut

off

sound

from

the

speakers;

however,

if

your

speakers

are

connected

to

the

REMOTE

speaker

terminal

posts,

deactivate

the

Speaker

Remote

button

to

cut

off

sound

from

the

speakers.

Hence,

if

you

are

frequent

user

of

the

headphones,

you

may

wish

to

connect

the

speakers

to

the

REMOTE

terminal

posts

all

the

time.

CONNECTING

COMPONENTS

COMPACT

DISC

PLAYER

VIDEO

CASSETTE

RECOROER

RIGHT

LEFT

RIGHT

LEFT

DIRECT

SPEAKERS

REMOTE

SPEAKERS

ENGLISH

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

determination

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

your

attempt

any

connections.

BEFORE

CONNECTIONS

1.

Place

for

Installation

Ensure

to

place

the

unit

in

a

flat

surface

where

it

is

free

from

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

connect

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.

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)

U

s

e

speakers

with

impedance

ratings

of

4

to

8

ohms.

However,

if

you

wish

to

hook

up

2

sets

(pairs)

of

speaker

systems

and

drive

both

sets

simultaneously,

ensure

each

speaker

is

rated

8

ohms

minimum.

Never

connect

speakers

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

section.

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

1

cm

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)

The

DIRECT

terminal

posts

are

recommended

for

the

best

sound

quality

possible

from

the

unit

in

the

“straightpath

M

route

bypassing

the

headphone

circuit.

The

sound

from

the

speakers

connected

to

the

DIRECT

terminal

posts

will

not

be

affected

by

the

Speaker

Remote

button

on

the

front

panel.

However,

if

you

wish

to

listen

to

your

headphone

privately,

connect

your

speakers

to

the

REMOTE

terminal

posts

and

use

the

Speaker

Remote

button

on

the

front

panel

to

turn

the

speakers

off.

f)

The

REMOTE

terminal

posts

are

for

the

second

pair

of

speakers

if

you

wish

to

use

it

for

such

as

providing

sound

to

another

room.

The

sound

from

the

remote

speakers

can

be

turned

on

and

off

by

the

front

panel

Speaker

Remote

button.

g)

Ensure

the

Left

and

the

Right

Channels

are

correctly

connected

between

the

unit

and

the

speakers,

and

make

sure

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,

which

will

cause

short

circuits

and

may

damage

both

the

unit

and

the

speakers.

3.

C

onnecting

Tape

Recorder

a)

When

connecting

only

one

tape

recorder

(cassette

deck,

DAT,

etc.),

use

the

TAPE

1

inputs

and

outputs.

b)

When

connecting

two

tape

recorders,

use

the

TAPE

2

inputs

and

outputs

for

the

recorder

which

you

wish

to

use

for

recording

(dubbing)

the

other

recorder,

which

then

is

connected

to

the

TAPE

1

inputs

and

outputs.

For

example,

connect

a

DAT

deck

to

the

TAPE

1

jacks

and

a

cassette

deck

to

the

TAPE

2

jacks,

as

normally

you

wish

to

record

DAT

tapes

onto

cassette

tapes.

Specifications

RA-935BX

Continuous

Power

Output.40

watts*

per

channel,

min.

RMS

both

channels

driven

into

8

ohms

from

20

to

20,000

kHz

with

no

more

than

0.05%

total

harmonic

distortion.

DIN

Output.

.

60

watts

per

channel

(1

kHz,

4

ohms,

1%

THD)

Music

Power...

.110

watts

Total

Harmonic

Distortion

(20

to

20

kHz

from

AUX).

.

No

more

than

0.05%

(continuous

rated

power

output)

No

more

than

0.03%

(continuous

1/2

rated

power

output)

No

more

than

0.03%

(1

watt

per

channel

power

output,

8

ohms)

Intermodulation

Distortion

(60

Hz

:

7

kHz

*

4:1).

.

No

more

than

0,03%

(continuous

rated

power

output)

No

more

than

0.01%

(continuous

1/2

rated

power

output)

No

more

than

0.02%

(1

watt

per

channel

power

output,

8

ohms)

Output:

Speakers.

.

4

ohms

minimum

Headphone.

.

8

-

2,000

ohms

Damping

Factor.

.

150

(20

to

20,000

Hz.

8

ohms)

Input

Sensitivity/Impedance:

CD,

TUNER.

210

mV/15

kohms

AUX,

TAPE

1.

2.

210

mV/15

kohms

Overload

Level

(THD

0.5%,

1

kHz):

CD,TUNER.5

V

AUX,

TAPE

1.2..5

V

Frequency

Response:

CD,

TUNER.10

to

100

kHz,

+1.0

dB,-3.0

dB

AUX,

TAPE

1.2.10

to

100

kHz,

+

1.0

dB,

-3.0

dB

Signal

to

Noise

Ratio

(IHF,

A

network):

CD,

TUNER.105

dB

AUX,

TAPE

1,2.105

dB

MISCELLANEOUS

Power

Requirement.120

V/60

Hz,

230

V/50

Hz.

240

V/50

Hz

(depending

on

destinations)

Power

Consumption.

300

Watts

Dimension

(overall).

440

(W)

x

92

(H)

x

347

(D)

mm

17-3/0'

x3-5/8'

x

13-11/16'

Weight

(net).6.1

kg/13.4

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).

Power

Amplifier

Bias

Adjustment

Instruments:

DC

milli-voltmeter

Notes:

Prior

to

Bias

Adjustment,

run

about

5

minutes

with

rated

output

(8

ohm)

and

warm

up

Power

Transistor

and

Heat

Sink.

Set

Volume

control

to

minimum.

Step

Coupling

Adjust

Adjust

for

Plus

Lead

Minus

Lead

1

TP3

TP1

VR601

DC

milli-voltmeter

reads

6

mV

2

TP4

TP

2

VR602