Kenwood KAC 648 S Owners Manual

Page 1

KENWOOD

KAC-64BS

4-CHANNEL POWER AMPLlFlER > Page 2-11

INSTRUCTION MANUAL
mPgICDAEUBEEUfiSBIESIANAUX D Page 12-21

AMPLIFICADOR DE POTENCIA DE 4 CANALES > Page 2231

MANUAL DE INSTRUCCIONES

KENWOOD CORPORATION

Take the time to read through this instruction manual.
Familiarity with installation and operation procedures will help
you obtain the best performance from your new power amplifier.
For your records

Record the serial number, found on the back of the umt, m the spaces
desngnated 0n the warranty card, and In the space provtded below
Refer to the model and serial numbers whenever you call upon your
KENWOOD dealer for mformatron or servrce on the product

Model KACvGABS Serral number AM_

© PRNTED W USA 86471363700 (KMV

Page 2

Safety precautions

To prevent injury or fire, take the following

precautions:

~When extenorhg the rgnrtron, battery or
ground wrres, make sure to use automotlve-
grade wrres or other wrres wrth a 3mm
(AWGWZr or more to prevent Wlle
detenoratron and damage to the wrre coating

-To prevent a snort crrcutt, never put or leave
any metallrc objects (such as corns or metal
toosr rnslde the rum

- I" the unrt starts to entlt smoke or strange
s'heils, turn off the power rmmeorately and
consult your Kenwood dealer

- Do not touch the un:t dunng use because the
surface of the unlt becomes hot and may
cause burns rt touched

ACAU N

To prevent damage to the machine, take the

following precautions:

- Be sure the unrt rs connected to a 12V DC
power suppry wrth a negatrve ground
connectron

0 Do not open the top or bottom covers of the
unrt

- Do not :rSIall the unrt to a spot exposed to
drrect sunlrght or excesswe heat or nurmdrty
Also ayoro praces wrtn too much dust or the
005er lrty 0 water splashrhg

. When rep'aclhg a fuse only use a new one
win fine presc'beo ratlng Usrhg a tuse wrth
the wrong ratrng may cause your unrt to
ntalrunctroh

' To prevent a snort crrcult when replacrng a
r'user hrs: dlsconnect the wrrlng harness

Protection function

0 It you experience problems ourrhg
Installatloh, consult your Kenwood dealer

- lt the umt does not seem to be workrng nghtr
consult your Kenwooo oealer

Cleaning the unit

If the front panel gets drrty turn of the power
and wtpe the panel wrth a cry srlzcor clotn or
soft cloth

Do not wrpe the panel wlt't a hard cloth or a
cioth dampened by yotatlle solvents such as
parht thrhher and alcohol They can scratch the
surtace of the panel and/or cause the rndlcator
letters to peel off

FCC WARNING

Thrs equrpment may generate or use radto
frequency energy Changes or modrhcatrons
to thrs equlpment may cause harmful
Interference unless the modrhcatrons are
expressly approved tn the Instructrort manual
The user could lose the authonty to operate
thls equipment rt an unauthonzed change or
modltlcatton lS made

Accessories
Part name l External Number of
View Items
Termrnal cover fig 1

(Power termrnal)

Seltrtapprng screws

\4
@DD 4

lozlx 16 mm)

This unit is equipped with a protection function for protecting this unit and your speakers
from various accidents or problems that can occur.
When the protection function is triggered, the Power indicator goes off and the amplifier

stops operating.
I Power indicator:

When the power rs turned on, the Power tndrcator lrghts

lt the Power rndrcator does not lrght when the power rs turned on, the
protec120h function may be actrvateo Check whether there rs any

rndrcatron of trouble

I The protection function activates in the following

situa tions:

-When a speaker wrre may be short-crrcurted

-When a speaker output contacts ground

- When the temperature at rnternal parts exceeds 120°C (248°Fl
- When a ground wrre ot the center unl! (cassette recerver, CD recerver,
etc ) or thrs unrt l5 not connected to a metal part servtng as an

Power rndtcator

electncal ground oassrng electrrcrty to the battery 5 negative 6/

Termlnar
English

Page 5

it: LINE OUT terminal
These racks output respectiveTy the srgnats
rhput to amphhers A and B They always
output the stereo srghats regardless of the
posrtron of the OPERATION swrtch

1 RCA cable ground lead terminal

INPUT SENSITIVITY control

Set thrs corttrOr accordzhg to the DTEVOUIDUI
lever 0 the center urtit connected wrth thrs
umt, or to the rhaxrmum power output 0"
the genumeaccessory car stereo

The sensrtrvrtaes 0 ampT-frers A aha B cart
be adjusted moepehdehtTy regardTess of the
postttoh of the mom seTector swttch

Use the dragrarh on
the rrght as a guroe

15

NOTE .,
For the prerutput TeveT or the maxrmum
power output rete' to the "SDeCTTTCaItOHS"
tn the rhstructroh manuar ot the center umt
514 OPERATION switch
The amplrtrcatron rhethoos of the STgTaIS
hour. to amohhers A am} 8 can be setected

System examples

mdepehdehty accordmg to the setuhg at

this swrtch

- STEREO position:
The amptmer car be used as a sterer
amphtrer

- MONO (Lch) position:
Ampltfres the srghaT wuut trort the e'i star
OUW Set to thrs Dosttrm ard eke or open
cohhectrons to use as a rug ODWP'
monauraT amphher (The rhput 'rgm srghar rs
not output r

FILTER switch

These swatches ariow 'Hterrhg of the

speaker outnut srghaTs

- HPFlHigh Pass Filter) position:
OrtTy frequencres 0t TSOHZ or hrghe' are
output tFreouehcres betow WOT-17 are cut

- LPHLow Pass Filter) position:
Only trequencres of 80H: or Tower are
output tFrequehcres aoove 80H: are cu't
The Lch aha Rch erT be mrxed petor
Output eveh rt the operatrort swrfch > set to
STEREO

- OFF position:
The ortgma sound wrthout theth rs
output

I Full-range 4-channel + Subwoofer system

CENTER UNIT

Switch setting

Froh:
soeaKe

Rear
SDCBKE

Power amphtrer

English 5