Harman Kardon A250 Owners Manual - Page 10

USING

THE

MODEL

A-250

AS

A

CONVERSION

AMPLIFIER

FOR

STEREO

If

you

now

own

a

basic

amplifier,

or

an

amplifier

-preamplifier,

you

may

utilize

the

Model

A-250

for

the

second

channel

and

control

the

entire

stereo

sys-

tem

with

the

A-250

preamplifiers.

For

this

application

the

Model

A-250

is

con-

nected

in

the

manner

described

below,

INSTALLATION

PROCEDURE

Connecting

Your

Speakers:

Your

two

speakers

should

be

matched

if

possible

to

obtain

optimum

results

and

should

he

placed

8

to

15

feet

apart

against

one

wall

of

your

listening

room.

Corner

placement

is

also

quite

acceptable.

Facing

the

speakers

straight

out

or

slanting

them

slightly,

will

depend

on

your

room

size,

acoustic

effect

and

where

you

will

be

seated

for

listening.

It

may

be

necessary

to

experiment

with

speaker

placement

until

best

results

are

obtained.

•

Use

any

type

wire

to

connect

your

speakers.

Lamp

cord

is

excellent

and

may

be

easily

dressed

around

the

molding

for

an

inconspicuous

and

neat

installation.

Speaker

Connection

For

Conversion

Arrangement:

Set

the

SEPARATE

-PARALLEL

switch

located

on

the

front

chassis

support

apron

directly

behind

the

pilot

light

to

the

"PARALLEL"

position

and

strap

the

appropriate

Speaker

Output

terminals

together.

IMPORTANT:

Whenever

the

SEPARATE

-PARALLEL

switch

is

in

the

"PARALLEL"

position,

the

Speaker

Output

terminals

must

be

strapped

together,

and

conversely

whenever

the

Speaker

Output

terminals

are

strapped

together,

the

SEPARATE

-PARALLEL

switch

must

be

in

the

"PARALLEL"

position.

Connect

Speaker

A

(refer

to

Diagram

E)

to

either

32

ohm

terminal

on

the

SPEAKER

OUTPUT

strip

and

the

other

lead

to

either

A

terminal.

Now

tie

the

two

32

ohm

terminals

together.

The

A

and

B

terminals

on

both

output

strips

have

been

strapped

together

at

the

factory,

and

should

be

left

that

way.

If

you

are

using

an

8

ohm

speaker,

tie

the

two

16

ohm

terminals

together

instead

of

the

32

ohm

terminals

as

described.

The

SPEAKER

SELECTOR

switch

on

the

front

panel

may

be

placed

in

any

position

since

it

is

inoperative

for

this

method

of

installation.

Connect

Speaker

B

to

the

"G"

and

16

ohm

speaker

terminals

on

your

other

monaural

amplifier.

RIGHT

SPEAKERS

LEFT

SPEAKERS

RIGHT

SPE

611

AKER

O

O

O

B

4

13

16

32

A

B

4

8

IS

32

SECOND

AMPLIFIER

6

6

16

LEFT

SPEAKER

1611

Diagram

E

Connecting

Both

Amplifiers

For

Stereo

Operation:

Connect

a

shielded

lead

not

longer

than

3

or

4

feet

between

the

LEFT

PREAMP

OUT

;ack

on

the

rear

of

the

A-250

and

the

Aux

or

Tuner

input

on

your

other

amplifier.

IMPORTANT:

Connect

the

AC

power

cord

from

your

monaural

amplifier

to

the

AC

convenience

outlet

on

the

rear

of

the

Model

A-250.

The

on/off

switch

on

the

A-250

will

now

control

the

power

for

both

amplifiers.

Harman Kardon A250 Owners Manual - Page 10

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