Harman Kardon CITATION I Owners Manual - Page 3

INTRODUCTION

The

Harman-Kardon

Citation

I

Stereo

Preamplifier

represents

the

culmination

of

extensive

research

and

experimentation.

The

keynote

is

unparallelled

performance,

and

no

compromise

has

been

made

in

the

design

of

this

magnificent

instrument_

Every

feature

demanded

by

the

professional

has

been

incorporated,

and

several

new

ones

added.

Each

is

important

to

the

proper

operation

of

your

system.

This

booklet

has

been

written

in

simple

non

-technical

language,

and

if

you

will

take

the

time

to

read

it

fi

rst

before

doing

anything

else,

you

will

fi

nd

it

simple

to

obtain

optimum

performance.

Keep

this

booklet

available

at

all

times_

It

contains

indispensable

technical'

and

service

information.

FEATURES

•

Separate

Bass

and

Treble

step

-type

tone

controls

for

each

channel.

Controls

completely

out

of

the

circuit

when

in

the

flat

position

to

eliminate

phase

shift

and

transient

distortion

inherent

in

all

tone

controls.

Spe-

cial

treble

cut

contains

scratch

fi

lter

for

sharp

roll

-off

without

ringing.

•

Each

amplification

stage

is

flat

over

an

extremely

wide

range

and

is

surrounded

with

a

feedback

loop.

•

Unmeasurable

distortion

and

phase

shift.

•

D.C.

on

all

heaters

and

the

use

of

low

noise

resistors

in

critical

places

to

reduce

thermal

agitation

and

hum_

•

Anode

follower

outputs

insure

extended

low

frequency

response

by

including

the

output

coupling

con-

denser

in

the

feedback

loop.

•

All

operating

controls

arranged

in

logical

grouping

to

facilitate

operation.

•

Chassis

designed

to

permit

easy

accessibility

to

all

connections.

•

Preamplifier

can

be

installed

into

a

cabinet

by

merely

sliding

the

chassis

in

from

the

front.

Escutcheon

re-

mains

fastened

to

the

chassis,

eliminating

the

need

to

mount

it

separately

to

the

wooden

front

panel.

•

18

stages

utilizing

9

dual

triodes.

•

Silicon

diode

rectifiers

for

B

+

and

filaments.

•

Separate

turnover

and

roll

-off

equalization

controls

for

virtually

any

combination

of

record

or

tape

play-

back

equalization

curves.

•

Continuously

variable

blend

control

acting

as

a

third

channel

gain

control

or

as

a

crossfeed

control

if

a

center

speaker

is

not

used.

•

Zero

to

infinity

balance

control

offering

full

range

and

complete

cut-off

for

either

speaker.

•

Military

construction

throughout

for

rigidity

and

professional

appearance.

1

Harman Kardon CITATION I Owners Manual - Page 3

Features

Page 3 highlights