Kenwood KL-7070X User Manual

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The

rnulti-channel

amplifier is

an epoch-making sound

reproduction system. An electronic

crossover re-

places

the conventional

LC network.

Three separate

main

amplifiers

are used

for

each stereo side, left

and

right, instead

of a single amplifier in

the conventional full-range system. ln short,

six

main

amps

instead

of

two are employed

in

a multi-channel amrlifier system

to

produce

the

ultimate in clear,

truly

distortion-free

stereo sound.

Kenwood

now

offers a Full-Range-Multi-channel

Speaker

system in three

models,

the KL-7080,

5080 and

4080. They

are all compatible

with

any conventional

stereo

system, as well

as the

latest

multi-channel

amplifier

system.

What's more,

they're

capable

of

reproducing

spectacular sound. These

are speaker

systems

that

defy obsolescence,

and which

you'll treasure

for many

years

to

come

because of

thei!.

high

excellence

and

performance.

E LECTRONIC

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NETWORK

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SILTCTOT

SWITSH

,1"

SEPARATE

input

terminals

These

six input

terminals

are used

for

making

eonnections

to

the three

main

amplifier

outputs

of either

the left or right side of a

multi-channel

amplifier system" tsy

connecting

another

identicel

speaker

system

to

the nnain amplifiers

of

the

othe!"

s ide,

m u lti-ch

a

n nel

stereo

sou nd ca

n

be en

joyed

.

LOlV-Connect

the

output of

the

Low-range amp-

lifier

to

these

two

terrninale.

lvllD-Con

nect

the output of the

M

id

-ra

nge

a

rn

p"

Nifier

to

these two

terminals.

HIcH-Connect

the

output of

the

High-range

arnp-

lifier

to

these two terrninals.

low-range

amplif

iers

a

nd

their respectivs

speaker terminals.

As for

the

mid-range

ampli'

fier

and

its speaker

terminals,

reverse

the

polarity

by

connectrng

plus

to

minus

anei

minus

to

plus.

This, it

must

be emphasized,

applies

only

under

ideal

room

acoustic con-

ditions.

Otherwise

normal

polarity

conneetions

may

produee

better

results.

To

test

your

own

accustic

conditions,

exBeriment

by

observing

proper

polarity

eonneetions

for

all

three ampli-

fiers,

and

settle

on

the

mid-!"ange

connsftlon

which

nesults

in

the

best sound.

2"

SELECTOR switch

Th is

is

a

4-

point

swite

h

wh

ich

con

neets

th*se

speakers

to

the

multichannei

amplifier

systern wheqr

set

at SEPARATE

position,

or

to

a ecnventionai.

full-range

amplifier

or

receiver

at

CLEAR, NORilVIAt

and

SOFT

positions.

in

the

latter

three

pcsitions,

the

amplifier

output

is

fed

to

a

built-in,3-way,

LC

crossover

network,

a nd sou

nd

ca n be

adjusted

to suit

your

preference

as

follows:

At

CLEAR

position-slight

emphasis

of

highs.

At

NORMAL

position-ideal,

flat, hi=fi

response.

At SOFT

position-slight

attenuation

af

mfrd-renge

and

highs.

It

is im

porta

nt

to

sbserve the

f

ollowing when

making

conections

ts

the

three

rnain

amplifiers.

A" For

systerns with

a crossover slope of

SrtBrt.

OCT

or

LSdBlOCT,

b€

sure

to observe

polari-

ty in connecting

all three arnplifiers

to their

nespective

speakeltermrnals.

Csnnect

plus

to

plus

and n'r inus

ta

nrinus in sue

h

a case"

B. lf

the crosscver

slope

is

l2d.BrrOCT,

best

sound

is

obtained'vrrhen

plus

iis

connectec$

to

plus

and

minus

to

minus for

the

high

anC

3,

FU

LL-RANGE

tnput

terminals

These

two

input

terminals are used

for

rnaking

connections

ts either

the left

or

right

channe|

of

any conventional,

tull-range

stereo

arnplif ier

or

receiver"

By

eonnecting

another identical

speaken

system

to

the output

of the other

ehannelu

fulN"

range

stereo

sot-lnd can be

enjoyed. Be

sLlre

to ob"

serve

polarity

when

rnaking

conneetions,

Always

connect

plus

to

plus

and

minus

to

minus

for

eonventional full"range

amp$

otr

receivers"

flI,[uLTt,siltfilttHt

fiffipUFtHft

sy$THm

iloTH$

The

erossover

frequencies

used,

as

well

as

proper

level

adjustments

of

the

various

ampiifiers

are

very

impontant

to

get

best

results in

multi-

,

ehannel

stereo

openation.

lt

is recommended

tnal:

Q)

(1}

Crossover

frequencies

of approximately

57O-

$pE0rFilrlfrTl0il$

MODEI.

&"

RECHECK

SPEAKER

CONNHCTIONS

Be

sure

to

recheck

all speaker

conneetions

before

operating th

is

spea

ker systenn.

Shos'ts str

rnisconnections

may damage

the speakens.

CAUTIO{\:

lt

the

tow-range

amplifier

output is

miseonneeted

to

the

HIGH

or

ndlD

speaken csn-

nectlng

terminals,

speaker

damage

will

be

ntrmost

certa

in !

8O0Hz

/12dB,IOCT

and

5,000H2

/

\zdgIOCT

be used.

The

levels of

the

various

amplifiers

should

be

adjusted very

earefully

to

obtain

the best,

most

natu

ral

overall

!'esponse for

the

entine

audio range"

K

r--5080 K

L-4080

l\4OUNTEn

SpEAKERS

j

t

5"

free-edge

type

woofer x

'n

j

i

5"

cone

type

mid-range

x

'l

I

I

Horn type

high-mid-range

x

'l

i

Horn

tvpe

tweeter

x

2

l

I

1

-114"

metal

cone

type

super

l

1

t*eetet

x

1

-l

zr*r*u--u-Jgu

*;e*"n]*;

; 1

6^112" cone

tvpe mid-range

x 1

Horn

type

tweeter

x 2

1-114" metal

eone

tVpe

super

tweeter

x 1

Damped

pipe

duct

bass

reflex

type

70

watts

70

watts

25

watts

25

watts

I ohms

102 dB

30 H

z ta

22,O00

Hz

600 Hz,

5000 Hz,

10000

Hz

12

dB/oct

Builtin 3 step tone selector

Multi-channel

amplif

ier

system

eon

nection terrni nal s.

570

Hz*800

Hz.

5.000

Hz

12"

free-edge

type woofen

x

1

5-118"

cone type mid-range

x

l

2-314"

cone type

tweeter x

2

Damped

pipe

duct Lrass

reflex

type

50

watts

50

watts

20

watts

20

watts

I

ohms

101

dB

35 Hz

to

20,000 Hz

800

Hz,

5,000

Ha

1 2

d

B/oct

Builtin

3 step

tone

selector

Multi-channel amplif

ier

svsterrl

conneetion

tenminals.

570 Hz

-

800 Hz,

5,000

Flz

14-112"(W)

x

24-112"(H)

x

11-5/8"(D)

E

NCLOSU R E

TvTAXIMUM

INPL,,T

N4U

LTI.CHANN E

L

LOW

ivl

lD

HIGH

IMPEDANC€

SENSITIVITY

FHEC}UENCV

RESPOI\JSH

CROSSOVER FREQUENCY

CROSSOVER

NETWORK

SPECIAL

FEATURES

MULTI.CHANNEL

AMPLIFIEH

SYSTEM

CROSSOVER

FREAUENEV

D IMENSION

I

A.orstic

suspension type

J

i

eo watts

8O

watts

30

watts

3O

watts

8

ohms

102 dB

25

Hz

to

22,000

Hz

600

Hz,

2000

Hz,

5000

Hz,

10,000

Hz

12 dB/oct

Builtin

3

step tone

selee tor

Multi-channel

annplif

ier

system

connection

terminals.

57A

Hz*800

Hz,

5,000

Hz

16-314"{V\J}

x 25"{H}

x 11"(D)

'15"(W)

x 25-112"

(H)

x 11-5/6"{D}

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1970-

10

Printed

in

Ja

pa

n

850-0584"00

(ft)