Kenwood KAC-8104D - Amplifier Instruction Manual Download Page 3

English

  3

Installation

Accessories

Part name

External View

Number of Items

Self-tapping screws 
(ø4 × 16 mm)

4

Terminal cover 
(Power terminal)

1

Speaker level input cable

1

Hexagon wrench

1

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. Connect the negative 

-

 terminal of the battery.

2

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.

•  Do not mount the unit in a place where the ducts of the unit are blocked. 

Blocking these openings will inhibit the cooling of the internal temperature 
and result in malfunction.

•  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.

•  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.

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 Power indicator goes OFF 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.
•  When the internal temperature is high and unit won’t operate.
•  When a ground wire of the center unit (cassette receiver, CD receiver, etc.) 

or this unit is not connected to a metal part serving as an electrical ground 
passing electricity to the battery's negative 

-

 terminal.

280 mm
242 mm

Ø4.6

260.5 mm

212.5 mm

238 mm

Installation board, etc.
(thickness : 15 mm or more)

Self-tapping screw
(ø4 × 16 mm)

Hexagon socket 
head cap screw 
(M4 × 8 mm)

Hexagon wrench

Dressing cover 

Ducts

B64-3931-00̲00̲KE.indb   3

B64-3931-00̲00̲KE.indb   3

07.10.24   11:40:00 AM

07.10.24   11:40:00 AM

Summary of Contents for KAC-8104D - Amplifier

Page 1: ...p 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 8104D Serial number US Residence Only Register Online...

Page 2: ... 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 8Ω 2Ω 4Ω 4Ω 4Ω 4Ω Combined impedance 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 2CAUTION Do not wipe the panel with a hard cloth or a cloth dampened by volatile...

Page 3: ...nhibit the cooling of the internal temperature and result in malfunction 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 Do not install near the dashboard rear tray or air bag safety parts The install...

Page 4: ... have a maximum power output of no more than 40 W The power is turned on and off as the unit detects input signal Signal Sensing Turn ON There fore it is not necessary to connect the power control wire Speaker output terminals As this unit accepts speakers with a minimum impedance of 2 ohms connect speakers with 2 ohms or higher impedance to these terminals LINE OUT terminal The signal that s inpu...

Page 5: ...tion circuit may be activated Check connections by referring to Protection function Volume is too high Replace the fuse and use lower volume The speaker cord is shorted 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 sensitivity adjusting control is not set to the correct position Adjust the control correctly refe...

Page 6: ...supérieur à celui de l unité En ce qui concerne le cordon d alimentation et la masse il est conseillé d utiliser un cordon d alimentation électrique pour voiture ininflammable dont l intensité sera supérieure au pouvoir de coupure du fusible de l unité Utiliser un cordon d alimentation d un diamètre égal ou supérieur à 8 mm AWG 8 Lorsque plus d un amplificateur de puissance doivent être utilisés u...

Page 7: ...Lors du forage d un trou sous le siège à l intérieur du coffre ou partout ailleurs dans le véhicule vérifier s il n y a pas d élément dangereux de l autre côté tel qu un réservoir à carburant une conduite de frein une gaine de câbles et faire attention de ne pas faire de griffes ou d autres dégâts Ne pas l installer près du tableau de bord de la plage arrière ou d éléments de sécurité de l airbag ...

Page 8: ...imentation est activée et désactivée lorsque l appareil détecte le signal d entrée Détection de signal ACTIVE C est pourquoi il n est pas nécessaire de connecter le câble de commande de l alimentation Bornes SPEAKER OUTPUT Cet appareil étant conçu pour fonctionner avec une impédance de charge de 2 Ohms tout haut parleur dont l impédance est égale ou supérieure à 2 Ohms peut être branché sur ces pr...

Page 9: ...es raccordements en se reportant au paragraphe Fonction de protection Le volume est trop fort Remplacez le fusible et utilisez un niveau de volume plus faible Les fils de raccordement de l enceinte sont en court circuit Après avoir vérifié le câble d enceinte et réparé la cause du court circuit remplacez le fusible Niveau de sortie trop faible ou trop fort La commande de réglage de la sensibilité ...

Page 10: ...de corriente y la masa utilice un cable de corriente para vehículos ignífugo con una capacidad mayor que la capacidad del fusible de la unidad Utilice un cable de corriente con un diámetro de 8 mm AWG 8 o mayor Cuando desee utilizar más de un amplificador de potencia utilice un cable de suministro de alimentación y un fusible de protección de una capacidad de soporte de corriente mayor a la corrie...

Page 11: ...nte la temperatura interior y podrá producirse un fallo en el funcionamiento Cuando haga un orificio bajo el asiento o en el portaequipajes o en algún otro lugar del vehículo verifique que no existan objetos peligrosos al otro lado tales como un tanque de gasolina tubo del freno o los alambres del cableado del coche y tenga cuidado de no rayar las piezas del vehículo o causar algún otro daño No lo...

Page 12: ...na potencia de salida máxima no superior a 40W La alimentación se enciende y apaga conforme la unidad detecte una señal de entrada Activación de Detección de Señal Por lo tanto no es necesario conectar el cable de control de alimentación Terminales SPEAKER OUTPUT salida de altavoces Como este aparto acepta altavoces con una impedancia mínima de 2 ohmios conecte altavoces con una impedancia de 2 oh...

Page 13: ...ivado Compruebe las conexiones consultando Función de protección El volumen está demasiado alto Reemplace el fusible y baje el volumen El cable del altavoz está cortocircuitado Después de revisar el cable del altavoz y arreglar la causa del cortocircuito reemplace el fusible El nivel de salida está muy bajo o muy alto El control de ajuste de sensibilidad de entrada no está en la posición correcta ...

Page 14: ...B64 3931 00 00 KE indb 14 B64 3931 00 00 KE indb 14 07 10 24 11 40 30 AM 07 10 24 11 40 30 AM ...

Page 15: ...B64 3931 00 00 KE indb 15 B64 3931 00 00 KE indb 15 07 10 24 11 40 30 AM 07 10 24 11 40 30 AM ...

Page 16: ...B64 3931 00 00 KE indb 16 B64 3931 00 00 KE indb 16 07 10 24 11 40 30 AM 07 10 24 11 40 30 AM ...

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