Harman Kardon HK495I Owners Manual - Page 3

FEATURES

GENERAL

INSTRUCTIONS

■

HCC

(High

-instantaneous

Current

Capability)

Recent

studies

have

shown

that

whi

le

reproducing

dynamic

music

signals

the

instantaneous

impedances

of

nearly

al

l

loud

-speakers

drop

to

less

than

one

third

of

the

nominal

ratings.

These

low

instantaneous

impedances

typically

require

3

to

6

times

more

current

than

an

8

Ohm

resistive

load.

Reduced

dynamic

range

and

increased

distortion

wi

l

l

result

if

the

amplifier

cannot

provide

these

higher

currents.

For

this

reason,

the

hk495i

was

designed

to

provide

18

amperes

of

instantaneous

current.

■

Ultrawide

Bandwidth

The

bandwidth

of

this

unit

is

exceptional

ly

wide

and

inde-

pendent

of

negative

feedback.

This

improves

transient

accuracy

and

phase

l

inearity.

■

Low

Negative

Feedback

This

unit

has

been

designed

to

have

low

distortion

and

wide

bandwidth

without

high

negative

feedback.

This

further

improves

its

dynamic

accuracy.

■

Discrete

Component

Circuitry

In

order

to

achieve

the

above

goals,

al

l

discrete

electronic

circuitry

has

been

employed.

Al

l

avai

lable

integrated

circuits

could

not

provide

this

high

level

of

performance.

■

Active/Passive

Phono

Section

Unique

circuitry

provides

precise

passive

RIAA

equal

ization

(without

negative

feedback).

Then

the

same

low

level

of

negative

feedback

is

appl

ied

at

al

l

frequencies

from

20Hz-20kHz,

resulting

in

improved

transient

accuracy.

■

Sophisticated

Electronic

Protection

Harman

Kardon

engineers

developed

a

unique

protection

system

that

permits

high

instantaneous

current

to

be

driven

into

speaker

systems

but

protects

the

ampl

ifier

from

short-

circuited

or

damaged

speakers

and

wires.

This

protection

system

in

no

way

l

imits

ampl

ifier

output

voltage

or

current

during

music

reproduction,

and

therefore

has

no

negative

effect

on

sound

qual

ity.

■

Digital

Synthesized

Quartz

-locked

Tuning

Quartz

-locked

tuning

accuracy

el

iminates

drifting

and

mistuning,

thereby

guarantying

optimum

sound

qual

ity.

Eight

AM

and

eight

FM

stations

can

be

simultaneously

stored

in

the

memory.

They

wi

l l

remain

for

one

week

even

if

there

is

a

loss

of

power.

■

Constructed

for

Audio

Purity

The

internal

wiring,

layout

and

materials

have

been

chosen

to

minimize

noise,

hum

and

interaction

of

the

various

circuits.

Always

Use

at

120V

AC

This

unit

is

designed

for

operation

with

120V

AC.

Connect

only

to

domestic

AC

outlets.

Never

connect

the

unit

to

an

outlet

supplying

a

higher

voltage.

This

may

create

a

fire

hazard.

Handle

the

Power

Cord

Gently

•Do

not

disconnect

the

plug

from

the

AC

outlet

by

pul

ling

the

cord;

always

pull

the

plug

itself.

Pul

l

ing

the

cord

may

break

the

wire.

•If

you

do

not

intend

to

use

your

unit

for

any

considerable

length

of

time,

disconnect

the

plug

from

the

AC

outlet.

•Do

not

place

furniture

or

other

heavy

objects

on

the

cord,

and

avoid

dropping

heavy

objects

on

it.

Also

do

not

make

a

knot

in

the

power

cord.

Not

only

maythe

cord

be

damaged,

it

can

also

cause

a

short

circuit

and

a

consequent

fire

hazard.

Place

of

Installation

Place

your

unit

on

a

firm

and

level

surface.

Avoid

instal

l

ing

your

unit

under

the

following

conditions:

►Moist

or

humid

places.

►Places

exposed

to

direct

sunl

ight

or

close

to

heating

equipment.

►Extremely

cold

locations

such

as

those

in

the

direct

draft

from

an

air

conditioner.

►Places

subject

to

excessive

vibration

or

dust.

►Poorly

venti

lated

places.

Do

not

cover

the

venti

lation

slots

on

the

top

of

the

unit.

This

wi

l

l

cause

the

temperature

inside

the

unit

to

rise,

which

can

eventual

ly

effect

the

rel

iabi

l

ity

of

your

unit.

Moving

the

Unit

Before

moving

the

unit,

be

sure

to

unplug

the

power

cord

from

the

AC

outlet

and

disconnect

the

interconnection

cords

to

other

units.

Do

Not

Open

the

Cabinet

To

prevent

fire

or

shock

hazard,

do

not

tamper

with

internal

components

for

inspection

or

maintenance.

Harman

Kardon

does

not

guarantee

against

performance

degrada-

tion

resulting

from

any

modification.

If

water,

a

hairpin

or

wire

accidental

ly

enters

the

unit,

immediately

unplug

the

power

cord

from

the

AC

outlet

to

prevent

shock

and

consult

an

authorized

Harman

Kardon

service

station.

If

you

use

the

unit

under

this

condition,

it

may

cause

a

fire

or

shock

hazard.

Cleaning

When

the

unit

gets

dirty,

wipe

it

with

a

soft

dry

cloth.

If

necessary,

wipe

it

with

a

soft

cloth

dampened

with

mi

ld

soapy

water

and

then

wipe

with

a

dry

cloth.

Never

use

benzine,

thinner,

alcohol

or

other

volati

le

agent,

and

avoid

spraying

an

insecticide

near

the

unit.

2

Harman Kardon HK495I Owners Manual - Page 3

Features, General, Instructions

Page 3 highlights