KAC-X11D
CLASS D MONO POWER AMPLIFIER
INSTRUCTION MANUAL
© B64-4198-00/00 (MV)
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Installation
Accessories
Part name
External View Number of Items
380 mm
320 mm
Self-tapping screws
(ø5 × 18 mm)
4
ø6
Hexagon Wrench (Large)
Hexagon Wrench (Small)
Terminal cover (Power terminal)
Remote cable (6.0 m)
Remote controller
1
1
1
1
1
1
2
Mounting bracket
Self-tapping screws
(ø2.6 × 12 mm)
Hexagon socket
head cap screw
(M4 × 8 mm)
Installation procedure
Hexagon Wrench
(Small)
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. Remove the Dressing cover.
Dressing cover
4. Connect the input and output wires of the units.
5. Connect the speaker wires.
6. Connect the power wire, power control wire and grounding wire following
this order.
7. Install the installation fittings in the unit.
8. Attach the unit.
9. Install the remote controller.
10. Attach the Dressing cover.
11. Connect the negative · terminal of the battery.
CAUTION
• Do not install in the below locations;
(Unstable location, In a location that interferes with driving, In a location
that gets wet, In a dusty location, In a place that gets hot, In a place that
gets direct sunlight, In a location that gets hit by hot air)
• 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.
• When making 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.
Self-tapping screw
(ø5 × 18 mm)
Cooling fan
Installation board, etc.
(thickness : 15 mm or more)
• 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.
■ Remote controller
Mounting bracket
Remote controller
Self-tapping screw
(ø2.6 × 12 mm)
English ꢁ
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Connection
WARNING
Remove the ignition key and
disconnect the negative · terminal of
the battery to prevent short circuits.
CENTER UNIT
(CD receiver, etc.)
RCA cable*
Power control wire*
Left input
CAUTION
• If sound is not output normally, immediately
turn power off and check connections.
• Be sure to turn the power off before changing
BATT.
GND
Hexagon Wrench
L
REMOTE
the setting of any switch.
(Small)
• If the fuse blows, check wires for shorts, then
replace the fuse with one of the same rating.
• Check that no unconnected wires or connectors
are touching the car body. Do not remove
caps from unconnected wires or connectors to
prevent short circuits.
Ax3]
PN
SPER OPUT
LINE IN LINE OUT
Hexagon Wrench
(Small)
Hexagon
Wrench
(Large)
Right input
• 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
Use the
attached
Hexagon
Wrench.
Use the attached
Hexagon Wrench.
cause this unit to fail.
• After installation, check that the brake lamps,
winkers, and wipers work properly.
Protective Fuse*
Battery wire*
* Commercially available parts
Subwoofer (L + R)
(≥2Ω)
Terminal cover
WARNING
When two subwoofers are
connected. (≥4Ω)
To prevent fire caused by a short in the wiring,
connect a fusible link or breaker nearby the
battery’s positive terminal.
Ground wire*
Battery
Dual voice coil subwoofer
(4Ω + 4Ω)
(2Ω + 2Ω)
SPEAKER OUPUT
SPEAKER OUPUT
About the Lead Terminals
1. Wire Thicknesses
Hexagon
Wrench
(Large)
You can use wires with the following thicknesses:
Hexagon Wrench
(Small)
Battery wire and ground wire
Speaker wire
AWG 4 – AWG 6
AWG 8 – AWG 12
10 - 13 mm
(3/8" - 1/2")
2. Strip the wire
Make a cut in the wire sheath (insulator made from vinyl, etc.) at the
position 10-13 mm away from the end of the wire, and then remove the
unnecessary portion of the sheath by twisting it.
3. Install the wire
Loosen the screw using the supplied hexagon wrench. Insert the
conductor of the wire in the terminal hole, and then tighten the screw.
ꢂ English
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■ Remote cable connection
Remote cable (6.0 m : 19.7 ft)
CAUTION
• Before connecting the remote controller
cables, always turn the Bass boost level knob
all the way to the left.
BATT.
GND
L
REMOTE
R
FUSE [30Ax3]
P.CON
SPEAKER OUTPUT
LINE IN LINE OUT
Remote controller
Remote cable
■ Multi Amplifier with Remote cable connection
You can control the Bass boost level of the
second and subsequent Slave amplifiers
simultaneously from the Master amplifier.
The volume level of each amplifier is
determined by the setting of the Master
amplifier (INPUT SENSITIVITY, boost level of
the remote controller).
LINE OUT
1
Remote controller
FILTER
ON
2
CENTER UNIT
RCA cable*
0.5
0.3
3
(CD receiver, etc.)
4
[
MIN
]
[
]
MAX
0.2
5
INPUT
SENSITIVITY V
[
]
OFF
Power control wire*
Master amplifier
Setting the Master amplifier
1. Adjust the INPUT SENSIVITY to the output
of the center unit to be connected.
2. Set the LPF frequency and ISF.
BATT.
GND
L
REMOTE
3. Turn the LINE OUT FILTER switch ON.
R
[30Ax3]
P.N
SPEAKER OUTPUT
LINE IN LINE OUT
FUSE
Setting the Slave amplifier
1. Turn the LINE OUT FILTER switch OFF.
2. Adjust the INPUT SENSIVITY.
• To adjust the Slave amplifier to the same
volume as the Master amplifier, adjust the
INPUT SENSIVITY to 0.2 V (max.).
LINE OUT
FILTER
ON
1
2
0.5
0.3
RCA cable*
3
4
[
MIN
]
[
]
MAX
0.2
5
Extension wire*
INPUT
SENSITIVITY V
[
]
OFF
CAUTION
• Before connecting the remote controller
cables, always turn the Bass boost level
knob all the way to the left.
Slave amplifier
BATT.
GND
L
REMOTE
* Commercially available parts
R
FUSE [30Ax3]
P.N
SPEAKER OUTPUT
LINE IN LINE OUT
LINE OUT
FILTER
ON
1
2
0.5
0.3
3
4
[
]
[
]
MIN
MAX
5
0.2
INPUT
[
]
SENSITIVITY V
OFF
Slave amplifier
BATT.
GND
Hexagon Wrench
(Small)
L
REMOTE
Ax3]
P.CON
SPEAKER OUTPUT
LINE IN LINE OUT
Use the
attached
Hexagon
Wrench.
English ꢃ
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Controls
ꢌ
ꢍ
ꢏ
30
150
1
25
100
70
2
35
0.5
0.3
20
3
4
50
200
15
40 [MIN]
[
]
5
0.2 MAX
LPF
ISF
INPUT
[
]
[
]
[
]
V
FREQUENCY Hz FREQUENCY Hz SENSITIVITY
LINE OUT
FILTER
ON
ꢐ
OFF
ꢎ Z
NOTE
The control panel locates under the front side
cover. Remove the cover to access to its controls for
adjustment. (See page 3)
ꢋ
Remote controller
THERMAL MANAGEMENT
PROTECTION
ꢅ
ꢉ
ꢊ
BATT.
GND
L
REMOTE
R
[
x
]
3
P.CON
SPEAKER OUTPUT
FUSE 30A
LINE IN LINE OUT
ꢀ
ꢁ
ꢂ
ꢃ
ꢄ
ꢆ
ꢇ
ꢈ
1 Fuse (ꢁ0 A × ꢁ)
@ LPF(Low-Pass Filter) FREQUENCY control
This control adjusts the frequency band output from this unit.
NOTE
# ISF (infrasonic filter) control
If you can’t find the specified capacity fuse at your store etc., consult your
Kenwood dealer.
Ultralow frequencies that cannot be reproduced even by a subwoofer
speaker do not become sound but become unnecessary oscillations, which
affect the sound by causing distortion, etc. Setting this control cuts the
frequencies below the respective frequency.
2 Battery terminal
3 Power control terminal
Controls the unit ON/OFF.
This improves the reproduction performance of the speakers by eliminating
unnecessary oscillations which will not become sound.
NOTE
$ INPUT SENSITIVITY control
Controls the unit power. Be sure to connect it with all the systems.
Set this control according to the pre-output level of the center unit
connected with this unit.
4 Ground terminal
5 Speaker output terminals
NOTE
As this unit accepts speakers with a minimum impedance of 1 ohm, connect
speakers with 1-ohm or higher impedance to these terminals.
For the pre-output level, refer to the <Specifications> in the instruction
manual of the center unit.
6 REMOTE terminal
% LINE OUT FILTER switch
Connects the Remote cable.
Changing over the audio signal output to the LINE OUT terminal.
NOTE
ON position:
Use the Remote cable of the accessory.
The audio signal adjusted when setting LPF, INPUT SENSIVITY control and
Bass boost (optional accessory) is output to the LINE OUT terminal.
7 LINE IN terminal
OFF position:
8 LINE OUT terminal
The audio signal input from the LINE IN terminal is output to the LINE OUT
terminal (through output).
The audio signal set with the LINE OUT FILTER switch will be output.
9 BOOST LEVEL (Bass boost level) control
Sets the level by which the low frequency range should be boosted.
CAUTION
The volume of the audio output to the LINE OUT terminal is different in ON
and OFF position. Remember this when changing the LINE OUT FILTER switch
from ON to OFF.
0 Power indicator
- FREQUENCY (Bass boost frequency) control
Sets the center frequency around which the low frequency range should be
boosted.
= THERMAL MANAGEMENT indicator
Lights this indicator when the internal temperature is high.
~ PROTECTION indicator
Lights this indicator when the protection function is activated. (See page 2)
! Power indicator
When the power is turned on, the Power indicator lights.
ꢄ English
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Troubleshooting Guide
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.
• Input (or output) cables are disconnected.
• Protection circuit may be activated.
• Volume is too high.
• Connect the input (or output) cables.
• Check connections by referring to <Protection function>.
• Replace the fuse and use lower volume.
• After check the speaker cord and fixing the cause of the short,
replace the fuse.
(Blown fuse.)
• The speaker cord is shorted.
The output level is too small • The input sensitivity adjusting control is not set to the correct • Adjust the control correctly referring to <Controls>.
(or too large).
The sound quality is bad.
(The sound is distorted.)
position.
• The speakers wire are connected with wrong ª / · polarity. • Connect them properly checking the ª / · of the terminals
and wires well.
• A speaker wire is pinched by a screw in the car body.
• Connect the speaker wire again so that it is not pinched by
anything.
• The switches may be set improperly.
• Set switches properly by referring to <Controls>.
• Connect the Remote Cable securely and correctly.
The Remote Controller does • The Remote Cable is disconnected.
not function.
Specifications
Specifications subject to change without notice.
Audio Section
Max Power Output.........................................................................................................................................................................................................................................2400 W
Rated Power Output (+B = 14.4 V)
(4 Ω) (20 Hz – 200 Hz, 1.0 % THD).....................................................................................................................................................................................800 W × 1
(2 Ω) (100 Hz, 1.0 % THD)....................................................................................................................................................................................................1200 W × 1
Frequency Response (+0, –3 dB)...........................................................................................................................................................................................20 Hz – 200 Hz
Sensitivity (rated output) (MAX.) .................................................................................................................................................................................................................0.2 V
Sensitivity (rated output) (MIN.) ..................................................................................................................................................................................................................5.0 V
Input Impedance............................................................................................................................................................................................................................................... 10 kΩ
Signal to Noise Ratio......................................................................................................................................................................................................................................105 dB
Low Pass Filter Frequency (–24 dB/oct.)..............................................................................................................................................................50 – 200 Hz (variable)
Infrasonic Filter Frequency (–24 dB/oct.).............................................................................................................................................................. 15 – 40 Hz (variable)
Bass Boost Level.....................................................................................................................................................................................................................0 – 18 dB (variable)
Bass Boost Frequency....................................................................................................................................................................................................40 – 100 Hz (variable)
Bass Boost Frequency...................................................................................................................................................................................................................................................
General
Operating Voltage .............................................................................................................................................................................................. 14.4 V (11 – 16 V allowable)
Current Consumption ........................................................................................................................................................................................................................................90 A
Installation Size (W × H × D) .........................................................................................................................................................................................380 × 66 × 286 mm
..........................................................................................................................................................................................................1214-15/16 × 2-5/8 × 11-1/4 inch
Weight ................................................................................................................................................................................................................................................5.0 kg (11.0 lbs)
English ꢅ
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