AMPLIFICADOR DE POTENCIA DE 4 CANALES ► Page 30-43
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 unit, in the spaces
designated on the warranty card, and in the space provided below.
Refer to the model and serial numbers whenever you catf upon your
KENWOOD dealer for information or service on the product.
Model KAC-X501F Serial number
• When extending the ignition, battery, or
ground wires, make sure to use automotivegrade wires or other wires with a 10 mm^
(AWG8) 15 mm^ (AWGIO) x 21 or more to
prevent wire deterioration and damage to the
wire coating.
•To prevent a short circuit, never put or leave
any metallic objects (such as coins or metai
tools) inside the unit.
• If the unit starts to emit smoke or strange
smells, turn off the power immediately and
consult your Kenwood dealer.
• Do not touch the unit during use because the
surface of the unit becomes hot and may
cause burns if touched.
ACAUTION
To prevent damage to the machine, take the
fotiowing precautions:
• Be sure the unit is connected to a 12V DC
power supply with a negative ground
connection.
• Do not open the top or bottom covers of the
unit.
• 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.
• 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.
NOTE
• If you experience problems during
installation, consult your Kenwood dealer.
• If the unit does not seem to be working right,
consult your Kenwood dealer.
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.
ACAUTION
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.
FCC WARNING
This equipment may generate or use radio
frequency energy. Changes or modifications
to this equipment may cause harmful
interference unless the modification's 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.
Accessories
Part name
Terminal cover
(Power terminal)
Self-tapping screws
(05 X 18 mm)
External
View
0D33B>
Number of
Items
1
4
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 0 terminal of the battery to
prevent short circuits.
2. Set the unit according to the intended usage.
3. Connect the input and output cables of the
units.
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 0 terminal of the
battery.
^ f:nrtlich
ACAUTION
• Be sure to turn the power off before
changing the setting of any switch.
• If the fuse blows, check wires for shorts,
then replace the fuse with one of the same
rating.
• Check that no unconnected cables or
connectors are touching the car body. Do
not remove caps from unconnected cables
or connectors to prevent short circuits.
• Connect the speaker wires tÿ 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.
• After installation, check that the brake
lamps, winkers, and wipers work properly.
Page 3
Installation
Self-tapping screw
{05 X 18 mm)
Cooling fan
Air inlet
Installation board, etc.
(thickness : 15 mm or more)
' Since the power amplifier has no parts which require operation, it can be installed at a position
away from the driver's seat without any hindrances.
As generally accepted positions for its installation, places such as inside the trunk, etc. can be
considered.
' Use the extension cables. (Optional.
0.5m
RCA cable
RCA cable (07mm)
RCA cable (0l2mm)
ACAUTION
• Do not install the unit under the carpet. Otherwise heat build-up occurs and the unit may be
damaged.
• Install this unit in a location which allows heat to easily dissipate.
Once installed, do not place any object on top of the unit.
• 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 it.
• This unit has cooling fans to decrease the internal temperature. Be careful not to block the
cooling fan openings when installing the unit. Blocking these openings will inhibit the cooling of
the internal temperature and result in malfunction.
• When nnaking a hole under a seat, inside 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
wiring harness, and be careful not to cause scratches or other damage.
• Do not install near the dashboard, rear tray, or air bag safety parts.
• The installation 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.
• After installing the unit, check to make sure that electrical equipment such as the brake lamps,
turn signal lamps and windshield wipers operate normally.
CA-2SLCA-12SLCA-22SL
CA-3WLCA-13WL CA-23WL
CA-5WCA-15WCA-25W
1m2m
4m5m6m
CA-52SL
CA-53WL
CA-45W
Exhaust outlet
CA-65W
Fnaftfih 3
Page 4
Controls
®
@ d)(D ® ®
This is a 4 channel amplifier including 2 stereo amplifiers in a body. One amplifier is referred to
as amplifier A and the other is amplifier B. This unit is compatible with a large variety of
systems by combining the switches and functions described in the following.
^#2
#2 When INFRASONIC is set to 15Hz or 25Hz, the sound is monaural (L+R).
* Note that if OPERATION is set to MONO, Lch is still monaural'.
When you wish to use the unit as a stereo
amplifier, stereo connections are used.
The speakers to be connected should
have an impedance of 2£2 or greater.
When multiple speakers are to be
connected, ensure that the combined
impedance is 2Q or greater for each
channel.
• Bridged Connections:
When you wish to use the unit as a highoutput monaural amplifier, bridged
connections are used. (Make connections
to the LEFT channel (+) and the RIGHT
channel (-) SPEAKER OUTPUT terminals.)
The speakers to be connected should
have an impedance of 4i2 or greater.
When multiple speakers are to be
connected, ensure that the combined
impedance is 4£2 or greater.
ACAUnON
The rated input of the speakers should be
no less than the maximum output of the
. amplifier. Otherwise malfunction may
result.
® RCA cable ground lead terminal
0 Amplifier A LINE IN terminal
0 Amplifier B LINE IN terminal
0 LINE OUT terminal
These jacks output respectively the signals
input to amplifiers A and B. They always
output the stereo signals regardless of the
position of the OPERATION switch.
® Power control terminal
® EXT.AMP,CONT (external
amplifier control) terminal
This controls the B.M.S. (See P.6).
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Page 5
tNPUT SELECTOR switch
This switch selects the input method of the
signals to be amplified by amplifiers A and
B.
• A B position:
Amplifies both of the signals input to
amplifiers A and B.
* A position:
Amplifies only signal input amplifier A with
both amplifiers A and B.
INPUT SENSITIVITY control
Adjust this control according to the pre-out
level of the center unit connected to this
amplifier.
The sensitivities of amplifiers A and B can
be adjusted independently regardless of the
position of the input selector switch.
NOTE
Refer to "Specifications" on the center
unit's instruction manual about the pre-out
level.
OPERATION switch
The amplification methods of the signals
input to amplifiers A and B can be selected
independently according to the setting of
this switch.
• STEREO position:
The amplifier can be used as a stereo
amplifier.
• MONO (Lch) position:
Amplifies the signal input from the left side
only. Set to this position and make bridged
connections to use as a high-power
monaural amplifier. (The input right signal is
not output.)
® FILTER switch
This switch allows to apply high-pass or
low-pass filtering to the speaker outputs.
• HPF (High-Pass Filter) position:
The filter outputs the band of higher
frequencies than the frequency "set with the
HPF FREQUENCY control.
• OFF position:
The entire bandwidth is output without
filtering.
• LPF (Low-Pass Filter) position:
The fitter outputs the band of lower
frequencies than the frequency set with the
LPF FREQUENCY control.
The speaker output is automatically turned
monaural (L+R) and the bass boost function
is activated.
® HPF FREQUENCY control
Sets the cutoff frequency when the FILTER
switch is set to HPF.
® LPF FREQUENCY control
Sets the cutoff frequency when the FILTER
switch is set to LPF.
® INFRASONIC FILTER switch
When this switch is set to 15 Hz or 25 Hz,
frequencies below the setting value will be
cut. This serves to get rid of unwanted
vibrations that do not result in sound and,
improves the speakers' ability to reproduce
sound. Note that the speaker output will
automatically be set for monaural (L+R)
sound.
English S
Page 6
B.M.S. (Bass Management System)
If the unit is not going to be operated from the outside:
o
u
a
i
OWUTlClN/PBaTECtWW
On№CLOSE
LOWVQLTAOE
B.M.S. indicator
SS.S.
(D B.M.S. switch
This boosts the bass, focusing mainly on
the frequency setting determined using the
B.M.S. FREQUENCY control.
The bass boost applies only to the B
amplifier.
* (REMOTE) OPEN/CLOSE or
(REMOTE) B.M.S. position:
When the switch is in this position, the
bass is not boosted.
Bass boost
Slide panel
Flat (OFF)
Operations using the
OPEN/CLOSE button
• B.M.S. (+6) position:
When the switch is in this position, the
bass is boosted by 6dB.
The B.M.S. indicator glows.
Bass boost
Slide pane!
+6dB (ON)
Operations using the
OPEN/CLOSE button
® B.M.S. FREQUENCY control
When the B.M.S. switch is set to the
B.M.S. (+6) position, this control can be
used to adjust the central frequency that
you want to emphasise.
NOTE
• If the sUde panel meets an obstacle while
sliding, the slide operation will be halted. If
this happens, remove the obstacle and then
press the OPEN/CLOSE button again.
• If the center unit power is switched OFF, or
the vehicle engine is switched OFF, while
the slide panel is open, the slide panel will
then close automatically. The next time the
power is turned ON or the vehicle engine is
turned ON, the slide panel will return to its
original open state.
• If the B.M.S. switch setting is changed to
(REMOTE), the slide panel will close in
preparation for remote operation, even if the
EXT.AMP.CONT. terminal is not connected.
ACAUnON
Take care not to allow your finger or any other
object to be trapped by the slide panel while it
is sliding.
(D OPEN/CLOSE button
Each time you press this button, the slide
panel either opens or closes.
6 Enafish
Page 7
If the unit is going to be operated from the center unit:
The amount of bass boost and the opening/closing of the slide panel can be controlled from
the center unit. Additionally, up to 3 power amplifiers can be set at the same time.
NOTE
Kenwood center units released in 1999 or later having an "EXT.AMP.CONT." wire operate
this unit. Instructions on how to operate the center unit will be found in the instruction manual
supplied with the center unit.
0 switch
This switch is used to select the range of
control operations that can be carried out
from the center unit.
The bass boost only applies to the B
amplifier.
When the bass boost is switched ON, the
B.M.S. indicator glows.
• (REMOTE) OPEN/CLOSE position:
When the switch is in this position, only the
opening/closing of the slide panel can be
controlled from the center unit; the bass
cannot be boosted.
Center un^
зеШпдеШие
Bass boost
Slide panelCLOSE OPEN
(REMOTE) B.M.S. posHion:
When the switch is in this position, any of
the three bass boost settings — FLAT,
+6dB and +12dB — can be selected from
the center unit. If '+6 dB'or “.+12 dB" is
selected, the slide panel will open.
Сеп^шШ
setting status
Bass boost
Slide panelCLOSE
• B.M.S. (+6) position:
When the switch is in this position, the
bass is boosted by 6dB, regardless of any
operation carried out from the center unit.
Center unit
setting status
Bass boost+6dB (ON)
Slide panel
BASS BASS
Flat (OFF)
ПШГГ]
■ Flat '-I
Flat
(OFF)
BASS
Fiat
Operations using the
OPEN/CLOSE button
+6dB
(ON)
OPEN
AMF
■ ■■■.BASS: ■
ШР
BASS
+12dB
(ON)
АКЛГ
mm
(2) B.Ar.S. FREQUENCY control
This control allows you to use the B.M.S. to
adjust the central frequency that you want
to emphasise.
(D OPEN/CLOSE button
•When the B.M.S. switch is in the B.M.S.
(+6) position, the slide panel will open or
close each time the button is pressed.
• When the B.M.S. switch is set to the
(REMOTE) position, the center unit will
control the slide panel.
If you want to adjust the control inside the
slide panel, you can open/close the slide
panel temporarily by pressing the
OPEN/CLOSE button.
NOTE
If the slide panel meets an obstacle while
sliding, the slide operation will be halted. If
this happens, remove the obstacle and then
press the OPEN/CLOSE button again.
When the B.M.S. is in the (REMOTE)
position, and control operations are carried
out on the center unit, the slide panel will
return to the status set on the center unit
even if it is opened/closed using the
OPEN/CLOSE button.
If the center unit power is switched OFF, or
the vehicle engine is turned OFF, when the
slide panel is open, the slide panel will
automatically close.
When the power is turned back ON, or
when the vehicle engine is turned ON, the
slide panel will carry out an action
depending on the setting status of the
B.M.S. switch, as follows.
* If the B.M.S. switch is in the (REMOTE)
position, the slide panel will obey the
setting on the center unit.
* If the B.M.S. switch is in the B.M.S. (+6)
position, the slide panel will return to its
original open state.
ACAUnON
Take care not to allow your finger or any other
object to be trapped by the slide panel while it
is sliding.
When the unit's internal temperature rises,
the side fan is activated. If the internal
temperature rises even further, the slide
panel opens automatically, and the cooling
fan on the top is activated.
While the top cooling fan is in operation,
the COOLING FAN indicator blinks.
(D OPERATiON/PROTECTiON
indicator
This indicator glows when the power
comes ON normally.
If the PROTECTION function is activated,
the indicator blinks or goes out.
0 LOyy VOLTAGE indicator
This indicator glows when the power
voltage falls below 11V (volts).
If the power supply voltage returns to full
after a voltage drop, this indicator will biink
to alert the user that a voltage drop has
occurred.
The number of blinks indicates the number
of times the voltage has dropped (up to a
maximum of 10).
ortHMWNmoncnaN
ci
d)
Q
LOWVqLTAOE
ci
éjta.
a
PROTECTION function
This unit incorporates a protection function
which protects the main unit and speakers
from troubles. The unit stops to function
when the protection function is activated.
• When the
OPERAHON/PROTECTION indicator
blinks:
• A speaker wire may be short-circuited.
• A speaker output may be in contact with
the ground.
• The temperature of the internal parts may
be higher than 120°C (248°F)
• The fuse of this unit may be blown.
• The unit may be malfunctioning and
sending DC signal to the speaker output.
• When the POWER indicator and the
OPERATION/PROTECnON function
both go out:
This indicator glows when the bass boost is
turned ON using the B.M.S. (See P.6).
NOTE
If indicators d) to (D light up in succession or
blink in unison, the system is in DEMO mode.
If this happens, cancel DEMO mode by
pressing the OPEN/CLOSE button.
8 English
Page 9
Connection
______
I Power wire connection
awarniwg"
To prevent fire caused by a short in the wiring, connect a fusible link or breaker nearby the battery's
positive terminal.
Wiring
• If a buzzing noise is heard from the speakers when the engine is running, connect a line noise filter
(optional) to each of the battery wire.
• Do not allow the wire to directly contact the edge of the iron plate by using Grommets.
• Please be sure to install a protective fuse in the power wire, near the battery. Use a fuse which
has a capacity about 10A higher than the capacily of the fuse in the unit.
• For the power wire and the earth wire, use (flame-resistant) power wiring wires for in-car use. For
the power wire, use a power wiring wire with a current capacity about 10A higher than the
capacity of the protective fuse (about 20A higher than the capacity of the fuse in the unit).
• When more than one power amplifier are going to be used, use a power supply wiring wier and
protective fuse of greater current-handling capacity than the total maximum current drawn by each
amplifier.
Example: One Power AmpHEer Is Used
Fuse capacityProtective Fuse
80 A
90 A X 1 [30 A X 3]
Cross-sectional Area of Wiring
Wier (AWGI
10 mm^ (AWG 8) or greater x 1
15 mm^ (AWG 10) or greater x 2]
Protective
Fuse
: Commercially available parts
Power terminal
Pass battery and ground wires through supplied terminal cover and connect to respective
terminals. After completing connections, fasten terminal cover over terminal bracket.
English Э
Page 10
Connection
■ RCA cable connection
E Left input
RCA cable ground terminal
Power control wire
(To Power control terminal)
CENTER UNIT
(Cassette receiver,
CD receiver, etc.)
Rear output
RCA cable ground terminal
When using an RCA cable with a ground lead attached, connect the ground lead to this
terminal.
ACAUnON
Do not use this terminal for power source grounding. This unit will be damaged if the power
source grounding cable is connected to this terminal.
[H Left input
* : Commercially available parts
■ Speaker Selection
• 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 amplifier will cause smoke to be emitted as
welt as damage.
• The impedance of the speakers that are going to be connected should be 2Q or greater (for
stereo connections), or 4£2 or greater (for bridged connections). 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 amplifier.
Attach the connection terminal to a commercially available wiring wier for in-car use, and
connect it to the unit.
NOTE
An EXT.AMP.CONT. terminal can only be attached if Kenwood center unit is a model released in
1999 or latter, and has an "EXT.AMP.CONT." wire. Using the external amp control, up to 3
power amplifiers can be operated simultaneously (although this may not be possible, depending
on the type of wiring wier used, and its length).
Power control lead terminalExternal amplifier control terminal
CENTER UNIT
(Cassette receiver,
CD receiver, etc.)
External amplifier control
wire (Pink / Black)
System examples
Full-range 4-channel + Subwoofer ayetem
lNPl/rSEL£CT is«,
WPLiT SELECT
CONTROt m
O^RATION FILTER
I^^LTT SCNSmvTTVM
FREQ (Hi)
19Hz
INFRtóOMC
High-pass + Subwoofer system
_
ffTEREO M0i#0
OPERATION FILTER
9ENSmviTY{V)
)
ISHZ
inniASONlC
ETEREO «0N0
ORERATTON FNpTER
FREO(Ml)
INPUT SEi«mvmr(V)
FWlMESpr
CENTER UNIT
Switch setting
Extension wire
Ss]"|
S®ifg
■■ • s @
"LINE ; o
laOUT;
Lead terminal *
: Commercially available parts
Front
speaker
Rear
speaker
Subwoofer
Amplifier
[
(High pass)
Subwoofer
1
(L + R)
(Bridged)
^ r
-----------
Page 13
System examples
High-power 2-channel system
Tri-mode
OPEftA-nON RLTER
NPUT SCPWIVtTVOO
OFF I ZBHï
IBHZ
tNFfWSOMC
»^seiECT CTEil^^;*,
«MPOT EENSrnvrrV(V}
OPEWnON FILTER
Fweow
CONTROC [S SÎ5
Off|3№i
iiJKfc)
íGm»
CENTER UNIT
hj
Switch setting
«@22-,
IBnn Oi§
13 ng
byline i RB0
igOUT; ““o
(High pass)**
rid
_____
ri.
Subwoofer
(L + R) (Bridged)
^Principle of Tri-mode
Method of frequency band division using a coil and capacitor»»dn case of 6dB/oct. slope
Coil ID:
Passes low frequencies and blocks high
frequencies. (Low pass)
Capacitor 1C):
Passes high frequencies and blocks low
frequencies. (High pass)
^ 159000 ,
fc=Cut of Frequency (Hz)
L=
R-Speaker Impedance (fí)
eExample:
When it is required to set a crossover frequency of 120 Hz using speakers with an
impedance of 4 ohms.
Prepare commercially-available coil and capacitor with the closest ratings to the results
calculated from the formula above. The capacitor rating should be as close as possible to 331.25
(pF) and the coil rating should be as close as possible to 5.3 (mH).
▲CAUTION
• If you wish to bridge-connect a speaker, the speaker impedance must be no less than 4 ohms.
Connecting a speaker with an impedance lower than 4 ohms may damage the unit.
• Be sure to connect capacitors to speakers to which high frequencies will be passed. Failure to
do so will result in a drop of the combined impedance with the subwoofer.
• Ensure that the withstand voltage and current ratings of the capacitors (C) and coils (L) are
sufficient.
English 13
Page 14
What might appear to be a maffunction in your unit may just be the result of slight
misoperation or miswiring. Before catling service, first check the following table for possible
problems.
PROBLEM
No sound.
(No sound from
The output level is too
small (or too large).
The sound quality is bad.
(The sound is distorted.)
If the slide panel moves of
its own accord.
one
side.)
POSSIBLE CAUSE
• Input (or output) cables are
disconnected.
• Protection circuit may be
activated.
• The fuse may be blown because
the volume was too high.
The input sensitivity adjusting
control is not set to the correct
position.