KAC-5204
STEREO/BRIDGEABLE POWER AMPLIFIER 3 page 2-11
INSTRUCTION MANUAL
AMPLIFICATEUR DE PUISSANCE STEREO/COMPATIBLE 3 page 12-21
MODE D’EMPLOI
ESTÉREO/AMPLIFICADOR DE POTENCIA CONECTABLE 3 página 22-31
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 KAC-5204 Serial number
US Residence Only
Register Online
Register your Kenwood product at
www.Kenwoodusa.com
© B64-4488-08/00 (KH/EH) 5707-00000-203-0S
Safety precautions
WARNING
To prevent injury or fire, take the following precautions:
•When extending the ignition, battery, or ground wires, make sure to use automotive-grade wires or other wires with a 5 mm² (AWG 10) 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 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.
•Mounting and wiring this product requires skills and experience. For safety’s sake, leave the mounting and wiring work to professionals.
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.
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.
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.
Declaration of Conformity with regard to the EMC Directive 2004/108/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
English
Information on Disposal of Old Electrical 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
There is a Protection function installed in the unit to protect the unit and speakers from various problems. When Protection operates, the indicator informs you of the condition. (Refer to page 5)
Accessories
Part name |
External |
Number of |
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View |
Items |
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Self-tapping screws |
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4 |
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(ø4 × 16 mm) |
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Terminal cover (Power |
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1 |
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terminal) |
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Speaker level input |
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1 |
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cable |
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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 a diameter of 5 mm² (AWG 10) or greater.)
•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.
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4Ω |
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4Ω |
4Ω |
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4Ω |
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8Ω |
2Ω |
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Combined impedance
English
Controls / Indicator
FUSE [25A] |
BATT. P.CON GND |
BRIDGED |
SPEAKER OUTPUT |
LEFT |
RIGHT |
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POWER IN |
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SPEAKER INPUT
LINE IN
L 
R
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40 3020 |
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10 |
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(W) |
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0.5 |
FILTER |
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0.5 |
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1 |
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0.3 |
1 |
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0.3 |
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2 |
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34 |
5 |
0.2 [MAX] |
OFF |
LPF |
2 |
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[MIN] |
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INPUT |
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3 |
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SENSITIVITY[V] |
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4 |
5 |
0.2 [MAX] |
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[MIN] |
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INPUT
SENSITIVITY[V]
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1Speaker level input terminals
NOTE
•The genuine-accessory car stereo shall have a maximum power output of no more than 40 W.
•Do not connect the speaker output leads from a power amplifier (Optional) to the speaker level input terminals of this unit, for this may cause malfunction or damage.
•Do not connect cables and leads to both RCA cable input jacks and the speaker level input terminals simultaneously, for this may cause malfunction or damage.
•Connect the power control lead to a power supply which can be turned ON/OFF by the ignition key switch (ACC line). With this connection, shock noise may be generated
when the power of the genuine-accessory car stereo is switched ON/OFF.
2 LINE IN terminal
3INPUT SENSITIVITY control
Set this control according to the pre-output level of the center unit connected with this unit, or
to the maximum power output of the genuineaccessory car stereo.
Use the diagram on the right as a guide.
NOTE
For the pre-output level or the maximum power output, refer to the <Specifications> in the instruction manual of the center unit.
4FILTER switch
This switch allow filtering of the speaker output signals.
•OFF position:
The original sound without filtering is output.
•LPF (Low Pass Filter) position:
Only frequencies of 80 Hz or lower are output. (Frequencies above 80 Hz are cut.)
The speaker output is automatically switched to monaural (L+R).
5 Fuse (25 A)
6 Battery terminal
7Power control terminal
Controls the unit ON/OFF.
NOTE
Controls the unit power. Be sure to connect it with all the systems.
8 Ground terminal
9Speaker output terminals
•Stereo Connections:
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 2Ω or greater. When multiple speakers are to be connected, ensure that the combined impedance is 2Ω 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 9 and the RIGHT channel · SPEAKER OUTPUT terminals.)
The speakers to be connected should have an impedance of 4Ω or greater. When multiple speakers are to be connected, ensure that the combined impedance is 4Ω or greater.
English
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