Kenwood XR-1S, KAC-X1D User Manual

XR-1S
KAC-X1D

MONO DIGITAL POWER AMPLIFIER 3 page 2-13

INSTRUCTION MANUAL

AMPLIFICATEUR MONO NUMÉRIQUE 3 page 14-25

MODE D’EMPLOI

AMPLIFICADOR DE POTENCIA DIGITAL MONOFÓNICO 3 página 26-36

MANUAL DE INSTRUCCIONES

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 XR-1S/KAC-X1D Serial number

US R esid enc e Only

Register Online

Regist e r your Kenwood pro d u c t at

www.Kenwoodusa.com

© B64-4327-00/00 (KV/EV)

Safety precautions

WARNING

To prevent injury or fire, take the following
precautions:

•

Mounting and wiring this product requires skills and

experience. For safety’s sake, leave the mounting and
wiring work to professionals.

• When extending the ignition, battery, or ground
wires, make sure to use automotive-grade wires or
other wires with the range of 14 mm² (AWG 6) to
21 mm² (AWG 4) 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 metal 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.

CAUTION

To prevent damage to the machine, take the
following 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.

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.

FCC NOTE

This equipment has been tested and found to
comply with the limits for a Class B digital device,
pursuant to Part 15 of the FCC Rules. These limits are
designed to provide reasonable protection against
harmful interference in a residential installation. This
equipment may cause harmful interference to radio
communications, if it is not installed and used in
accordance with the instructions. However, there
is no guarantee that interference will not occur in a
particular installation. If this equipment does cause
harmful interference to radio or television reception,
which can be determined by turning the equipment
off and on, the user is encouraged to try to correct
the interference by one or more of the following
measures:

• Reorient or relocate the receiving antenna.

• Increase the separation between the equipment
and receiver.

•

Connect the equipment into an outlet on a

circuit different from that to which the receiver is
connected.

•

Consult the dealer or an experienced radio/TV

technician for help.

NOTE

This Class B digital apparatus complies with Canadian
ICES-003.

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.

2 English

Declaration of Conformity with
regard to the EMC Directive
2

004/108/EC

Manufacturer:

Kenwood Corporation
2967-3 Ishikawa-machi, Hachioji-shi, Tokyo,

192-8525 Japan

EU Representative's:

Kenwood Electronics Europe BV
Amsterdamseweg 37, 1422 AC UITHOORN,
The Netherlands

Information on Disposal of Old Electrical

8Ω

2Ω

2Ω

4Ω

4Ω

4Ω

4Ω

8Ω

4Ω

4Ω 4Ω

4Ω

4Ω

4Ω

4Ω4Ω4Ω

and Electronic Equipment (applicable for
EU countries that have adopted separate
waste collection systems)

Products with the symbol (crossed-out

wheeled bin) cannot be disposed as
household waste.
Old electrical and electronic equipment
should be recycled at a facility capable
of handling these items and their waste
byproducts. Contact your local authority
for details in locating a recycle facility
nearest to you. Proper recycling and waste
disposal will help conserve resources whilst
preventing detrimental effects on our
health and the environment.

This Product is not installed by the manufacturer of a
vehicle on the production line, nor by the professional
importer of a vehicle into an EU Member State.

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.

CAUTION

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 battery rise

When the unit is used in the ACC ON position without
turning the engine ON, it depletes the battery. Use it
after starting the engine.

Protection function

The protection function is activated in the following
situations:

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
PROTECTION indicator lights and the amplifier stops
operating.

•

When a speaker wire may be short-circuited.

• When a speaker output contacts ground.

• When the unit malfunctions and a DC signal is sent
to the speaker output.

7 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.

• 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.

• Connect the ground wire to a metal part of the car
chassis that acts as an electrical ground passing
electricity to the battery‘s negative · terminal.
Do not turn the power on if the ground wire is not
connected.

• Be sure to install a protective 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.

• 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 the range of 14 mm² (AWG 6) to 21
mm² (AWG 4).

• 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 total maximum current drawn by each
amplifier.

7 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 well as damage.

• The impedance of the speakers that are going
to be connected should be 2Ω or greater (for
stereo connections), or 4Ω 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.

Combined impedance

English 3

Installation

235 mm (9-1/4”)

217 mm (8-9/16”)

ø 6 (1/4”

)

192 mm (7-9/16”)

162 mm (6-3/8”)

Self-tapping screw
(ø5 × 18 mm (3/16" × 11/16"))

Installation board, etc.
(thickness : 15 mm (9/16") or more)

7 Accessories

Part name

Self-tapping screws
(ø5 × 18 mm (3/16" × 11/16"))

Hexagon Wrench (Large)

Hexagon Wrench (Small)

Terminal cover (Power
terminal)

External

View

7 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 units.

4. Connect the speaker wires.

5. Connect the power wire, power control wire and
grounding wire following this order.

6. Install the installation fittings in the unit.

7. Attach the unit.

8. Install the remote controller.

9. Connect the negative · terminal of the battery.

4 English

Number
of Items

4

1

1

1

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)

• D

o

not install the unit under the carpet.
Otherwise heat build-up occurs and the unit may
be damaged.

• I

stall this unit in a location which allows heat to

n
easily dissipate.
Once installed, do not place any object on top of
the unit.

• T

he 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.

• T

is unit has cooling fan to decrease the internal

h
temperature. Do not mount the unit in a place
where the cooling fan and ducts of the unit are
blocked. Blocking these openings will inhibit the
cooling of the internal temperature and result in
malfunction.

• W

hen 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.

• D

o 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.

• A

ter installing the unit, check to make sure that

f
electrical equipment such as the brake lamps,
turn signal lamps and windshield wipers operate
normally.

■ Remote controller (Accessory of KAC-X1D, Optional accessory for XR-1S.)

Mounting bracket

Remote controller

Self-tapping screw
(ø2.6 × 12 mm (1/8" × 1/2"))

■ Accessories

Part name External View Number of Items

Remote cable (6.0 m : 19.7 ft)

1

Remote controller

Mounting bracket

Self-tapping screws
(ø2.6 × 12 mm (1/8" × 1/2"))

1

1

2

English 5

Connection

SPEAKER OUTPUT SPEAKER OUTPUT

P.CON SPEAKER OUTPUT

REMOTE

FUSE[30Ax2

]

GNDBATT.

LINE IN LINE OUT

L

R

WARNING

Remove the ignition
key and disconnect the
negative · terminal of
the battery to prevent
short circuits.

* Commercially available parts

Power control wire*

Hexagon Wrench
(Small)

Hexagon
Wrench
(Large)

Use the attached
Hexagon Wrench.

Protective Fuse*

Battery wire*

Terminal cover

Battery

Ground wire*

WARNING

To prevent fire caused by a short in the

•
wiring, connect a fusible link or breaker
nearby the battery’s positive terminal.

CENTER UNIT
(CD receiver, etc.)

RCA cable*

Hexagon Wrench
(Small)

Dual voice coil subwoofer

Left input

Right input

Use the
attached
Hexagon
Wrench.

Subwoofer (L + R)

When two
subwoofers are
connected.

(2Ω + 2Ω)(4Ω + 4Ω)

6 English

CAUTION

• If sound is not output normally, immediately turn
power off and check connections.

• B

e 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 wires or connectors
are touching the car body. Do not remove caps
from unconnected wires or connectors to prevent
short circuits.

• 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.

• After installation, check that the brake lamps,
winkers, and wipers work properly.

7 About the Lead Terminals

1. Wire Thicknesses

You can use wires with the following thicknesses:

Battery wire and ground wire AWG 4 – AWG 6
Speaker wire AWG 8 – AWG 12

2. Strip the wire

Make a cut in the wire sheath (insulator made from vinyl, etc.)
at the position 10-13 mm (3/8" - 1/2") 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.

10 - 13 mm
(3/8" - 1/2")

Hexagon
Wrench
(Large)

Hexagon Wrench
(Small)

English 7

P.CON SPEAKER OUTPUT

REMOTE

FUSE [30Ax2

]

GNDBATT.

LINE IN LINE OUT

L

R

Connection

■ Remote cable connection (Accessory of KAC-X1D, Optional accessory for XR-1S.)

CAUTION

•

Before connecting the remote controller
cables, always turn the Bass boost level knob
all the way to the left.

Remote cable (6.0 m : 19.7 ft)

Remote controller

8 English

* Commercially available parts

OFF

LINE OUT FILTER

ON

0.2

5

1

0.5

2

4

0.3

3

[

MIN

]

[

MAX

]

OFF

LINE OUT FILTER

ON

0.2

5

1

0.5

2

4

0.3

3

[

MIN

]

[

MAX

]

OFF

LINE OUT FILTER

ON

0.2

5

1

0.5

2

4

0.3

3

[

MIN

]

[

MAX

]

P.CON SPEAKER OUTPUT

REMOTE

FUSE[30Ax2

]

GNDBATT.

LINE IN LINE OUT

L

R

P.CON SPEAKER OUTPUT

REMOTE

FUSE[30Ax2

]

GNDBATT.

LINE IN LINE OUT

L

R

P.CON SPEAKER OUTPUT

REMOTE

FUSE[30Ax2

]

GNDBATT.

LINE IN LINE OUT

L

R

■ Multi Amplifier with Remote cable connection
(Accessory of KAC-X1D, Optional accessory for XR-1S.)

CAUTION

•

Before connecting the remote controller cables, always turn the Bass boost level knob all the way to the left.

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).

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.

3. Turn the LINE OUT FILTER switch ON.

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.).

CENTER UNIT
(CD receiver, etc.)

Power control wire*

RCA cable*

Remote cable

Remote
controller

Hexagon Wrench
(Small)

Master amplifier

Extension wire*

Slave amplifier

Use the
attached
Hexagon
Wrench.

Slave amplifier

RCA cable*

English 9

Controls

P.CON SPEAKER OUTPUT

REMOTE

FUSE[30Ax2

]

GNDBATT.

LINE IN LINE OUT

L

R

    

 

INPUT

SENSITIVITY[V

]

LPF

FREQUENCY[Hz

]

ISF

FREQUENCY[Hz

]

OFF

LINE OUT FILTER

ON

0.2

5

1

0.5

2

4

0.3

3

[

MIN

]

[

MAX

]

200

50

150

100

70

40

15

30

20

   Z

1 Fuse (30 A × 2)

NOTE

If you can’t find the specified capacity fuse at your
store etc., consult your Kenwood dealer.

2 Battery terminal

ower control terminal

3 P

Controls the unit ON/OFF.

NOTE

Controls the unit power. Be sure to connect it
with all the systems.

4 Ground terminal

eaker output terminals

5 Sp

As this unit accepts speakers with a minimum
impedance of 2 ohm, connect speakers with 2­ohm or higher impedance to these terminals.

6 REMOTE terminal

Connects the Remote cable.

NOTE

Use the Remote cable of the accessory.

7 LINE IN terminal

erminal

8 LINE OUT t

The audio signal set with the LINE OUT FILTER
switch will be output.

9 LINE OUT FILTER switch

Changing over the audio signal output to the
LINE OUT terminal.

10 English

ON position:

The audio signal adjusted when setting LPF,
INPUT SENSIVITY control and Bass boost is output
to the LINE OUT terminal.

OFF position:

The audio signal input from the LINE IN terminal
is output to the LINE OUT terminal (through
output).

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 INPUT SENSITIVITY control

Set this control according to the pre-output level
of the center unit connected with this unit.

NOTE

For the pre-output level, refer to the
<Specifications> in the instruction manual of the
center unit.

- LPF(Low-Pass Filter) FREQUENCY
control

This control adjusts the frequency band output
from this unit.

= ISF (infrasonic filter) control

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.

THERMAL MANAGEMENT PROTECTION

  :







Setting this control cuts the frequencies below the
respective frequency.
This improves the reproduction performance
of the speakers by eliminating unnecessary
oscillations which will not become sound.

~ Cooling fan

ower indicator

! P

When the power is turned on, the Power indicator
lights.

@ PROTECTION indicator

Lights this indicator when the protection function
is activated. (See page 3)

# THERMAL MANAGEMENT indicator

Lights this indicator when the internal temperature
is high.

$ BOOST LEVEL (Bass boost level) control

Sets the level by which the low frequency range
should be boosted.

% Power indicator
^ FREQUENC

Y (Bass boost frequency)

control

Sets the center frequency around which the low
frequency range should be boosted.

Remote controller (Accessory of KAC­X1D, Optional accessory for XR-1S.)

English 11