Harman Kardon HK330A Owners Manual - Page 10

OPERATING

PROCEDURE

Every

control

on

this

receiver

serves

a

specific

useful

function

and

is

important

for

the

proper

operation

of

your

stereo

system.

We

recommend

that

you

read

the

following

section

carefully

so

you

may

take

full

advantage

of

the

performance

capabilities

of

your

receiver.

BALANCE

CONTROL

The

balance

control

is

used

to

adjust

the

sound

level

of

each

channel

in

relation

to

the

other.

The

nature

of

stereophonic

reproduction

is

such

that

it

requires

two

identical

channels

to

obtain

the

optimum

stereo

effect.

As

there

may

be

slight

differences

in

the

location

of

the

two

speakers,

tape

heads,

cartridges,

etc.,

the

balance

control

is

provided

to

permit

re

-balancing

of

the

overall

system

even

in

cases

where

extreme

unbalance

exists.

It

should

be

noted

that

the

Balance

control

may

be

set

anywhere

within

its

range

of

adjustment

to

attain

system

balance.

VOLUME

CONTROL

The

Volume

control

is

used

to

adjust

the

volume

level

of

any

program

material

fed

into

the

stereo

system.

The

control

varies

both

channels

simultane-

ously

therefore

eliminating

the

necessity

of

balancing

your

system

each

time

you

change

the

volume

level.

BASS

AND

TREBLE

CONTROLS

The

BASS

and

TREBLE

controls

on

your

receiver

provide

the

full

range

of

tonal

adjustment

necessary

for

stereo

high

fidelity

listening.

The

tone

control

range

is

considerable

and

can

adequately

adjust

the

low

and

high

frequencies

in

accordance

with

your

listening

preference,

speaker

characteristics

and

room

acoustics.

FUNCTION

SELECTOR

SWITCH

The

Function

selector

switch

selects

the

desired

type

of

program

source

to

be

heard

through

your

system.

1.

AM:

This

position

selects

the

AM

section

of

your

receiver

for

AM

reception.

2.

FM:

Selects

the

FM

section

of

your

receiver.

In

this

position

you

can

listen

to

stereophonic

broadcasts

monophonically

while

monophonic

broadcasts

will

appear

unchanged.

3.

FM

STEREO:

This

is

the

normal

listening

position

for

all

monophonic

or

stereophonic

FM

broadcasts.

In

this

position

the

stereo

indicator

light

and

automatic

switching

circuit

built

into

your

receiver

are

operative.

For

further

details

see

the

paragraph

on

STEREO

INDICATOR

LIGHT

and

SELECTING

MONO-

PHONIC

OR

STEREO

FM

BROADCASTS.

4.

PHONO:

Selects

your

record

player

for

stereophonic

operation.

5.

TAPE

AMP/AUX:

Selects

any

program

source

such

as

tape

recorder,

the

output

of

your

television

set,

or

any

other

high

level

equipment

connected

to

the

TAPE

AMP/AUX

receptacles

on

the

rear

of

your

receiver.

POWER

SWITCH

Be

sure

to

turn

this

switch

off

when

not

using

the

receiver.

SPEAKER

SYSTEM

SELECTOR

SWITCHES

Your

receiver

has

been

provided

with

two

independent

speaker

selector

switches.

If

your

receiver

is

connected

with

one

set

of

speakers

(1

system)

as

de-

scribed

in

previous

paragraph

on

speaker

connections,

the

SPKR-1

switch

must

be

in

the

"on"

position.

If

you

have

2

sets

of

speakers

(2

systems)

the

SPKR-1

and

SPKR-2

switches

must

both

be

in

the

"on"

position

for

both

systems

to

operate.

Should

you

desire

to

listen

to

stereo

headphones

alone,

the

speakers

(either

one

or

both

systems)

can

be

turned

off

at

your

discretion.

STEREO

-MONO

SWITCH

When

the

switch

is

in

the

STEREO

position

the

receiver

is

operating

stereo-

phonically.

When

the

switch

is

in

the

MONO

position,

the

receiver

is

operating

monophonically.

This

position

may

be

used

when

listening

to

monophonic

records

or

any

single

channel

program

source

through

both

speakers.

SOURCE/MONITOR

SWITCH

If

your

tape

recorder

has

a

special

monitoring

feature,

throwing

the

tape

monitor

switch

to

the

MONITOR

position

will

enable

you

to

listen

to

your

tapes

a

second

after

they

are

recorded.

When

not

in

use,

this

switch

must

be

in

the

SOURCE

position.

If

your

tape

recorder

does

not

have

any

monitoring

feature,

throwing

this

switch

will

result

in

zero

output

from

your

speaker

system.

CONTOUR

SWITCH

One

of

the

limitations

of

human

hearing

is

its

tendency

to

lose

sensitivity

to

the

very

low

pitched

sounds

as

the

program

sound

level

is

reduced.

It

is

this

characteristic

(known

as

the

Fletcher

-Munson

effect)

which

causes

one

to

play

music

programs

at

high

listening

levels

in

order

to

experience

the

full

rich

tone

available

from

fine

modern

recordings.

The

Harman-Kardon

CONTOUR

switch

compensates

for

this

effect;

thereby

eliminating

high

listening

levels

as

a

requisite

for

full

enjoyment

of

reproduced

music.

For

warm,

full-bodied

reproduction

at

low

listening

levels,

throw

the

CONTOUR

switch

to

the

CONTOUR

position.

At

high

levels,

the

CONTOUR

switch

has

no

effect.

9

Harman Kardon HK330A Owners Manual - Page 10

Operating, Procedure

Page 10 highlights