Kenwood KAC-X810D User manual

KENWOOD
KAGX81 OD
KAGPS81 OD
MONO POWER AMPLIFIER b page 2-l 1
INSTRUCTION MANUAL
AMPLIFICATEUR DE PUISSANCE MONAURAL b page 12-21
MODE D’EMPLOI
AMPLIFICADOR DE POTENCIA MONOFONICO b phgina 22-31
MANUAL DE INSTRUCCIONES
KENWOOD CORPORATION
CHOl
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 unit, in the spaces
designated on the warranty card, and in the space provided below.
Refer to the model and serial numbers whenever you call upon your
KENWOOD dealer for information or service on the product.
Model KAC-X81OD/PS81OD Serial number
0 PRINTED IN JAPAN 664-2274-00 (KM/EM)

Safety precautions
1 AWARNING 1
To prevent injury or fire, take the following
precautions:
l When extending the ignition, battery, or
ground wires, make sure to use automotive-
grade wires or other wires with a 14 mm2
(AWG6) or more to prevent wire deterioration
and damage to the wire coating.
l To prevent a short circuit, never put or leave
any metallic objects (such as corns or metal
tools) inside the unit.
l If the unit starts to emit smoke or strange
smells, turn off the power immedrately and
consult your Kenwood dealer.
l Do not touch the unit during use because the
surface of the unit becomes hot and may
cause burns if touched.
1 ACAUTION 1
To prevent damage to the machine, take the
following precautions:
l Be sure the unit is connected to a 12V DC
power supply with a negative ground
connection.
l Do not open the top or bottom covers of the
unit.
l Do not install the unit in a spot exposed to
direct sunlight or excessive heat or humidity,
Also avoid places with too much dust or the
possibility of water splashing.
l When replacing a fuse, only use a new one
with the prescribed rating. Using a fuse with
the wrong rating may cause your unit to
malfunction.
*To prevent a short circuit when replacing a
fuse, first disconnect the wiring harness.
pG?q
l If you experience problems during
installation, consult your Kenwood dealer.
l If the unit does not seem to be working right,
consult your Kenwood dealer.
FCC WARNING
This equipment may generate or use radio
frequency energy. Changes or modifications
to this equipment may cause harmful
interference unless the modifications are
expressly approved in the instruction manual.
The user could lose the authority to operate
this equipment if an unauthorized change or
modification is made.
fTii%F-1
This Class B digital apparatus complies wrth
Canadian ICES-003,
2 English
Cleaning the unit
If the front panel gets dirty, turn off the power
and wipe the panel with a dry silicon cloth or
soft cloth.
1 ACAUTION 1
Do not wipe the panel with a hard cloth or a
cloth dampened by volatile solvents such as
paint thinner and alcohol. They can scratch the
surface of the panel and/or cause the indicator
letters to peel off.
To prevent batter rise
When the unit is used rn the ACC ON position
without turning the engrne ON, it depletes the
battery. Use it after starting the engine.
Protection function
There is a Protection functron Installed tn the
unit to protect the unrt and speakers from
various problems. When Protection operates,
the indicator informs you of the conditron.
(Refer to page 5)
Accessories
I
Part name External Number of
View Items
I
Self-tapprng screws ,--1
(03 x 8 mm) n I 4
1

Installation
Self-tapping screw 4
. . . . . . . . . . .
(05xl8mm)
caver
Installation board, etc. l ’
(thickness : 15 mm or more) Self-tapping screws Mounting
(03x 8 mm) Hardware
I. Install the installation frttrngs rn the unit.
2. Attach the unit.
3. Install the termrnal cover.
1 ACAUTION 1
l Do not Install in the below locations;
(Unstable locatron, In a locatron that interferes wrth driving, In a location that gets wet, In a
dusty locatron, In a place that gets hot, In a place that gets direct sunlight, In a location that
gets hrt by hot air)
l Do not Install the unit under the carpet, Otherwise heat build-up occurs and the unrt may be
damaged.
l Install this unit in a location whrch allows heat to easily drssrpate.
Once installed, do not place any object on top of the unit.
l The surface temperature of the amplifier will become hot during use. Install the amplifier in a
place where people, resins, and other substances that are sensitive to heat will not come into
contact with rt.
l When making a hole under a seat, rnsrde the trunk, or somewhere else in the vehicle, check
that there is nothing hazardous on the opposite side such as a gasoline tank, brake pipe, or
wrrtng harness, and be careful not to cause scratches or other damage.
l Do not rnstall near the dashboard, rear tray, or air bag safety parts.
l The rnstallatron to the vehicle should securely fasten the unit to a place in which it will not
obstruct driving, If the unit comes off due to a shock and hits a person or safety part, it may
cause injury or an accident.
l After rnstalling the unit, check to make sure that electrical equipment such as the brake lamps,
turn signal lamps and windshield wipers operate normally.
English 3

Removing the cover
W Controlling the B.M.S. from the
Kenwood center unit
(B.M.S, : Bass management system)
When the B.M.S. swatch is set rn the
remote position, the bass boost amount
and frequency offset can be controlled from
the center unit.
l Bass boost
Zenter unit
,;c..,c.., Setting
f
ha mm
,,F,ay ,,,!, bFF mr,mm,,# Bass boost OFF (Flat)
mm-t6mt/
” 1 ‘%I#‘2*,
Bass boost +6 dB
“+ 1 2#(l ~~2~~/“3”
Bass boost +I 2 dB
“+ 1 8”l ‘(3#(I“4”
Bass boost +I 8 dB
l Frequency offset
Center unit
display Setting
“Normal” It is the B.M,S.
FREQUENCY control
adjustment value.
“LOW” The central frequency is 20.
30% low.
For the center unrt control method and
settrng drsplay, refer to the Instructron
Manual for the center unrt.
There may be cases when the center unit
can’t set the “Bass boost +lBdB’ or
“Frequency Offset”.
W Indicator @
You are notified of the unit’s condition and
malfunction (Protection function) by the
indicator.
l ON or color change in order.
When operation is normal
j---iGq
The color you want can be selected with
the variable color button.
l The color blinks blue
- When during operation
- When the center unit1B.M.S. switch
controls the B.M.S.
l The color blinks yellow
When the power voltage is less than 1IV.
pG?q
The cause may be one of the below
times.
- When the vehicle battery IS weak.
- When the battery capacity is low.
- When the battery cord is worn.
- When the battery wire is too small or too
long and can’t supply enough current.
l The color blinks purple
When the unit has farled and direct current
voltage ISgenerated to the speaker’s
output,
/--GE-l
Turn the power OFF and release the
protectron. If the indicator doesn’t quit
blinkrng, contact your Kenwood dealer.
l The color blinks red
When the Inside of the unit is overheating,
l The color blinks green
-
When the speaker cord is shorted,
- When the speaker output IS in contact
with the vehrcle ground.
English 5

Band Reject Filter
The acoustic properties of vehicle compartment tend to
cause oscillation due to resonance or unclearness of
sound due to standing waves at certain frequencies.
The band reject filter can solve the problems of
resonance or unclear sound with minimum influence on
the sound quality because it eliminates only the
frequencies causing resonance or standing waves.
W Adjustment method:
OdBPE Frequency
The band reject filter cuts only the limited frequencies to minimize influence on the sound
quality. Therefore, its effect cannot be obtained unless the cutoff frequencies are set
accurately to the frequencies causing resonance and standing waves. The band reject filter can
be adjusted according to what you feel through your ears, but we recommend the use of a
signal generator or a spectrum analyzer with a fine frequency measurement capability for the
adjustment.
l Adjustment using a signal generator:
Output a sine wave, vary its frequency to find the frequencres at whrch the vehicle compartment
resonates or volume increases (standing waves occur), and set the B.R.F. FREQUENCY control
to the position with which the resonance and standing waves disappear.
l Adjustment using a spectrum analyzer:
Output white noise (sound in which all frequencies are at a certain level), find the peak
frequency observed on the spectrum analyzer, and set the B.R.F. FREQUENCY control to the
position with which the peak observed on the spectrum analyzer disappears.
Connection
n Installation procedure
Since there are large variety of settings and connections possible according to applications, read
the instruction manual well to select the proper setting and connection.
1. Remove the ignition key and disconnect the negative @ terminal of the battery to prevent short
circuits.
2. Set the unit according to the intended usage.
3. Connect the input and output wires of the unrts.
4. Connect the speaker wires.
5. Connect the power wire, power control wire and grounding wire following this order.
6. Install the unit in the car.
7. Connect the negative @ terminal of the battery.
1 ACAUTION 1
l If sound is not output normally, immedrately turn power off and check connections.
l Be sure to turn the power off before changing the setting of any switch.
l if the fuse blows, check wires for shorts, then replace the fuse with one of the same rating.
l Check that no unconnected wires or connectors are touchrng the car body. Do not remove caps
from unconnected wires or connectors to prevent short circuits.
l Connect the speaker wires to appropriate speaker connectors separately. Sharing the negative
wire of the speaker or grounding speaker wires to the metal body of the car can cause this unit
to fail.
l After installatron, check that the brake lamps, winkers, and wipers work properly.
6 English

Connection ,
W Terminal names
0 Fuse (25 A x 3)
@ Battery terminal
@IGround terminal
@ Speaker output terminals
As this unit accepts speakers with a
mrnrmum Impedance of I ohm, connect
speakers wrth l-ohm or higher impedance
to these termrnals.
1 ACAUTION 1
The rated Input of the speakers should be
no less than the maxrmum output of the
amplrfrer. Otherwise malfunction may
result.
@IRCA cable ground lead terminal
When using an RCA cable with a ground
lead attached, connect the ground lead to
this terminal.
@ILINE IN terminal
@ILINE OUT terminal
The signal that’s input from the lrne Input
termtnal is output.
@ Power control terminal
Controls the unit ON/OFF.
f-7EE-q
Controls the unit power, Be sure to connect it
with all the systems,
@ EXT.AMP.CONT. (external
amplifier control) terminal
Controls the 6.M.S. Only Kenwood center
unit models sold rn 1999 or later with a
“EXT.CONT.“/‘EXT.AMP.CONT.” wire
attached can be used.
Also, a maximum of 3 power amplifiers can
be operated at the same time.
pzEq
There are cases when operation may not be
possible due to wiring wire type and length.
English 7

Comection
n Power wire connection
The connecting cord drameter*
l If solid wire: 00.4 (AWG 26) - 01.2 (AWG 161
l If m$i strand wrre: 00.4 (AWG 26)- 01.2 (AWG 161
f-l
External amplrfier control
wire (Pink / Black)
(Refer to page 71
CENTER UNIT
Lead terminal* l ****
Battery wire*
Power control wrre
* : Commercially available parts 1
1 AWARNING 1
Battery
To prevent fire caused by a short in the wiring, connect a fusrble lankor breaker nearby the battery’s
positive terminal.
Wiring
*Take the battery wire for this unit directly from the battery, If it’s connected to the vehicle’s
wiring harness, it can cause blown fuses etc.
l If a buzzing noise is heard from the speakers when the engrne is running, connect a line noise
filter (optional) to each of the battery wrre.
l Do not allow the wire to directly contact the edge of the iron plate by using Grommets.
l Connect the ground wire to a metal part of the car chassrs that acts as an electncal ground
passing electricity to the battery’s negative @ terminal. Do not turn the power on rf the ground
wire is not connected.
l Be sure to install a protectrve fuse in the power cord near the battery. The protective fuse
should be the same capacity as the unit’s fuse capacity or somewhat larger.
l For the power cord and ground, use a vehicle type (fireproof) power wring cord with a current
capacity greater than the unit’s fuse capacity. (Use a power wiring cord with a diameter of 14
mm2 (AWG 61or greater.)
l When more than one power amplifier are going to be used, use a power supply wiring wire and
protective fuse of greater current-handling capacity than the totaf’maximum current drawn by
each amplifier. .s
EXT.AMP.CONT. (external amplifier control) terminal @
I, Peel the cladding of wire for a length of 11mm from the end.
2, While pressing the lock release button with a slotted screwdriver, insert the wrre.
8 English

n RCA cable and speaker wire connection
r
. * : Commercially available parts
RCA cable ground terminal .
l. ,.
Lead terminal*
Subwoofer (L + RI
W Speaker Selection
l The rated input power of the speakers that are going to be connected should be greater than
the maximum output power (in Watts) of the amplifier. Use of speakers having input power
ratings that are less than the output power of the amplrfler will cause smoke to be emitted as
well as damage.
l Use speakers that have an Impedance of IO or greater. When more than one set of speakers
are going to be used, calculate the combined impedance of the speakers and then connect
suitable speakers to the ampllfrer.
*‘** Combined impedance
English 9

What might appear to be a malfunction in your unit may just be the result of slight
misoperation or miswiring. Before calling service, first check the following table for possible
problems.
PROBLEM POSSIBLE CAUSE SOLUTION
No sound. l Input (or output) cables are l Connect the input (or output)
(No sound from one side.) disconnected. cables.
l Protection circuit may be l Check connections by referring
activated. to “Indicator’.
(Blown fuse.) l Volume IStoo high. l Replace the fuse and use lower
volume.
l The speaker cord ISshorted. l After check the speaker cord and
fixing the cause of the short,
replace the fuse.
The output level is too
small (or too large). The input sensitrvity adjusting
control is not set to the correct
position.
Adjust the control correctly
referrrng to “Controls”.
The sound quality is bad.
(The sound is distotted.) l The speakers wire are l Connect them properly checking
connected with wrong (3 / (3 the FJ / ci) of the termrnals and
polarity. wares well,
l A speaker wire is pinched by a l Connect the speaker wire agarn
screw in the car body. so that rt ISnot prnched by
anything.
l The swatches may be set l Set swatches properly by
improperly. refernng to “Controls”.
The external amplifier *The B.M.S. switch setting
IS
l The B.M.S switch ISset to
controller (B.M.S.) will not incorrect. “REMOTE”.
work. l The external amplifier control l Check that the external amplifier
wire has come loose. control wire is properly
connected.
10 English

Specifications subject to change without notice.
Au&o Section
Max Power Output (4 0) ................................................................................................... 1600 W x 1
Rated Power Output (+B = 12.0 V)
(4 Q) ................................................................................. 300 W x 1 (20 Hz - 200 Hz, 0.5 % THD)
(2 Q) ............................................................................................ 600 W x 1 (100 Hz, 0.5 % THD)
Rated Power Output (+B = 14.4 V)
(4 Q) ................................................................................. ,400 W x 1 (20 Hz - 200 Hz, 0.5 % THDI
(4 Q) ................................................................................... 400 W x 1 fDlN45324, +B = 14.4 VI
(2 Q) ............................................................................................. 800 W x 1 (100 Hz, 0.5 % THD)
(1 Q) .......................................................................................... .I000 W x 1 (100 Hz, 1.O% THD)
Frequency Response (+ 0 , - 3 dB) ............................................................................. 5 Hz - 200 Hz
Total Harmonrc Drstortion (Rated power)’ ................................................................. .0.2 % (100 Hz)
Sensrtivrty (rated output) (MAX.) ................................................................................................ 0.2 V
(MIN.) ................................................................................................ 5.0 V
Srgnal to Norse Ratio ................................................................................................................ 100 dB
Input Impedance ...................................................................................................................... .I0 kQ
Low Pass Falter Frequency (24 dB/oct.) ........................................................... .50 - 200 Hz (vanable)
lnfrasonrc Filter Frequency (24 dB/oct.) .................................................................... OFF / 15 / 25 Hz
Band Reject Filter Frequency ............................................................................ 40 - 200 Hz (variable)
B.M.S.(40-1OOHz:varrable) ...................................................................... OFF/+6/+12/+18dB
ase<‘~~t~“~l”=MN n>,ow,?LPF,30kH2,
General
Operatrng Voltage ,,,,,,.,......,,,.,....,,,,,,,,.,,..,..,,..,,,,,,,,,,,.,,.................,,,,,,,, 14.4 V (I 1 - 16 V allowable)
Current Consumptron (+B = 12,OV, 4 0, 10 % THD) . .. .. .. ... ............ ... ....... ........... ..........51 A
Drmensrons (W x H x D) ,..,,,.,,,,,,,,...,..,,.,,..,.,,,,,,.,,....................,,.....,,.................. 283 x 58 x 350 mm
11-l/3 x 2-5/l 6 x 13-3/4 inch
Weight ,,..,,,.,,.,,,,,,,..,..,,. ,,..,,.,,.,,,,,,,.,..,,,.,...,,,,,,,,,.,..,.................,...,,,,,,,.................... 5.7 kg (12.5 lbs)
English 7 7

KENWOOD

Table of Contents
U.S.A.
Australia
Canada
Military
Belgique et Grand-duch6 de Luxembourg
Danmark
Deutschland
Nederland
Portugal
U.K. & Ireland
6sterreich
Elkis
Espatia
France
ltalia
Suomi
Andorra
Iceland
Malta
Norge
Schweiz
Svizzera
Suisse
Sverige
Page
2
3
435
67
8
9
9
10
10
11
11
12
12
13
13
14
14
14
14
15
15
15
15
15
A
m
b
Dear Customer,
Thank you for purchasing this kenwood product. As mentioned in the pages of this
booklet, our warranty is only valid in the countries listed. If your country is not listed
please contact your retailer for information on warranty procedure, or write to:
KENWOOD Corporation Customer Information Center
3-l 7-9 Aobadai
Meguro-ku Tokyo 153-0042 JAPAN
Warranty Card
Gerate-Typ und Seriennummer
Identification du produit
Produkt nwn og serie ““mrner
Modelo y Ntimero de serie
Malli ja sarjanumero
MovC%o nx, ap10& o~~pti<
Modello e nutnero di matricola
Model1 og serienumrner
Modelo e ““rnero de s&~e
Apparat typ & serienummer
ldentificatie van bet produkt
Mbdel heiti og raanfimer
ii-Mudell u s-serial number
Model number & serial number
Stempel und Unterschriftdes HAndlers
Revendeur 8. cachet
Forhandler
Distribuidor y sello
J&leenmyyj~ & lwna
Xypxvkki ~xx~pia<
T!mbro de1 rivenditore
Forhandlerens nwn og stempel
Agente e carimbo
Aterf&?iliare & stdmpel
Dealer 8, stempel
Undirritun og stimpill sbluaa~la
Tirnbru tal-bejjiegh
Dealer & stamp
Kaufdatum
Date d’achtat
Kobsdato
Fecha de cornpra
Ostooaiva
H&optlvia atop&
Data di acqwsto
Kjopt data
Data de compm
lnkepsdatum
Aankoopdatum
S~ludagur
Id-data ta’ meta nxtara
Purchase date
Name und Anschrift des Kaufers
Nom & adresse du client
Kobers nwn og adresse
Nombre y direccibn del clfente
Aslakkaan n~m & osoite
Ovopx ticxl &ciAluvq rqopao~i~
Nome e indlrizzo del ckente
Kundens “a”” og adresse
Nome e rnorada do comprador
Kundens w%nn & adress
Naam & adres VW de klant
Nafn og heimilisfang kaupanda
L-Isem ” I-indlrizz tax-xerre)
Name & address of customer
See back cover for table of contents.
0 646-0100-50 (0101

This warranty’ will be honored onlY in the U.S.A.
KENWOOD LIMITED WARRANTY FOR CAR STEREO COMPONENTS
HOW LONG IS THE WARRANTY
Kenwood U.S.A. Corporation ~“Kenwood”~ warrants this product for a period of one (1) year from the date of original
purchase.
WHAT IS COVERED AND WHAT IS NOT COVERED
Except as specified below, this warranty covers all defects in material and workmanship in Kenwood cer stereo
components. The following are not covered by the warranty:
I. Any product which is not distributed in the U.S.A. by Kenwood or which is not purchased in the U.S.A. from an
authorized Kenwood car stereo dealer or an automobile dealer, unless the product is purchased through the U.S.A
MiliterY Exchange Service.
2. Any product on which the serial number has been defaced, modified or removed.
3. Damage, deterioration or malfunction resulting from:
a. Any shipment of the product (claims must be presented to the carrier).
b. Installation or removal of the product.
c. Accident, acts of nature, misuse, abuse, neglect, unauthorized product modification or failure to follow
instructions supplied with the product.
d. Repair or attempted repair by anyone not authorized bY Kenwood.
e. Any other cause which does not relate to a product defect.
WHO IS PROTECTED
This warranty is enforceable onlY by the original purchaser.
WHAT WE WILL PAY FOR
We will paY for all labor and material expenses for covered items. Payment of shipping charges is discussed in the next
section of this warmmY.
HOW TO OBTAIN WARRANTY SERVICE
If your KENWOOD product ever needs service:
1. Take or ship it to env KENWOOD Authorized Service Center I” the U.S.A. along with & complete description of the
problem. (if you are uncertain as to whether 8 Service Center is authorized, please call 1.800.KENWOOD for the nearest
Service Center. l-800-536-9663). ‘
2. Although you must paY any shippIng charges if it i?. necessaY to ship the product for warranty service, vve will pay
the return shipping charges if the repairs are covered by the warmmY within the United States.
3. Whenever Your units are taken or sent for warranty service, you must include a copy ofthe original dated sales receipt
a* proof of vv.wra”tY coverage.
LIMITATION OF IMPLIED WARRANTIES
ALL IMPLIED WARRANTIES, INCLUDING WARRANTlES OF MERCHANTABILITY AND FlTNESS FOR A PARTICULAR
PURPOSE, ARE LIMITED IN DURATION TO THE LENGTH OF THIS WARRANTY.
EXCLUSION OF DAMAGES
KENWOOD’S LIABILITY FOR ANY DEFECTIVE PRODUCT IS LIMITED TO THE REPAIR OR REPLACEMENT OF THE PRODUCT
AT OUR OPTION. KENWOOD SHALL NOT BE LIABLE FOR:
,. INSTALLATION OR REMOVAL CHARGES, DAMAGE TO OTHER PROPERTY CAUSED BY ANY DEFECTS IN KENWOOD
CAR STEREO COMPONENTS, D%tMAGES BASED UPON INCONVENIENCE, LOSS OF USE OF THE PRODUCT; OR
2. ANY OTHER DAMAGES, WHETHER INCIDENTAL, CONSEQUENTIAL OR OTHERWISE.
SOME STATES DO NOT ALLOW LIMITATIONS ON HOW LONG AN IMPLIED WARRANTY LASTS AND/OR DO NOTALLOW
THE EXCLUSION OR LIMITATION OF INCIDENTAL OR CONSEQUENTIAL DAMAGES, SO THE ABOVE LIMITATIONS AND
EXCLUSIONS MAY NOT APPLY TO YOU.
This warranty gives “0” specific legal rights, and you may also have other rights which vary from state to state.
If a problem develops during or after the Limited Warranty Period, or if you have any questions regarding the operation
of the product, You should contact your KENWOOD Authorized Dealer or Authorized Service Center. If the problem or Your
question is not handled to your satisfaction, please contact our Customer Relations Department at the address hsted
below: