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KAC-7404
KAC-6404
4/3/2 CHANNEL POWER AMPLIFIER 7 page 2-9
INSTRUCTION MANUAL
AMPLIFICATEUR DE PUISSANCE 4/3/2 CANAUX 7 page 10-17
MODE D’EMPLOI
AMPLIFICADOR DE POTENCIA DE 4/3/2 CANALES 7 página 18-25
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
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Safety precautions To prevent battery from running out 2WARNING When the unit is used in the ACC ON position without To prevent injury or fire, take the following turning the engine ON, it depletes the battery. Use it precautions: after starting the engine. • 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 Cleaning the unit If the front panel gets
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Installation ■ Accessories External Number of Part name View Items 330 mm Self-tapping screws 236 mm 4 (ø4 × 16 mm) Ø4.6 Terminal cover 1 (Power terminal) Speaker level input 1 cable 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) Self-tapping screw • Do not install the u
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Controls 40W 15W 1 A ch FILTER switch 4 B ch LPF FREQUENCY control This switch allow filtering of the speaker output Sets the cutoff frequency when the "B ch FILTER" signals. switch is set to "LPF". • OFF position: 5 Power indicator The original sound without filtering is output. When the power is turned on, the Power indicator • HPF (High Pass Filter) position: lights. Only frequencies of 80 Hz or higher are output. If the Power indicator does not light when the (Frequencies below 8
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Connection ■ Installation procedure ■ Wiring Since there are large variety of settings and • Take the battery wire for this unit directly from the connections possible according to applications, read battery. If it's connected to the vehicle’s wiring the instruction manual well to select the proper harness, it can cause blown fuses etc. setting and connection. • If a buzzing noise is heard from the speakers when 1. Remove the ignition key and disconnect the the engine is running, connect a l
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Connection ■ RCA cable or Speaker level input connection • RCA cable connections RCA cable* CENTER UNIT (CD receiver, etc.) Power control wire (Blue/ White) A channel input B channel input • Speaker level input connections Cable Color of the connector 9 White A channel · White/Black Left Genuine-accessory car 9 Gray A channel stereo · Right Gray/Black (No line output center unit 9 Green B channel etc.) · Left Green/Black 9 Speaker level input cable Purple B channel · Right Pur
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40 25 * Commercially available parts ■ Speaker wire connection • Stereo Connections A channel Left speaker A channel Right speaker Lead terminal* B channel Right speaker B channel Left speaker • Bridged Connections A channel Speaker (Bridged) B channel Speaker (Bridged) ■ Power wire connection KAC-6404 KAC-7404 Lead terminal* Terminal cover Power control wire* Ground wire* Battery wire* Protective Fuse* Battery English 7
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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 • Connect the input (or output) cables. (No sound from one side.) disconnected. (Blown fuse.) • Protection circuit may be activated. • Check connections by referring to . • Volume is too high
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FCC WARNING Declaration of Conformity with This equipment may generate or use radio regard to the EMC Directive frequency energy. Changes or modifications to this 2004/108/EC equipment may cause harmful interference unless Manufacturer: the modifications are expressly approved in the Kenwood Corporation instruction manual. The user could lose the authority 2967-3 Ishikawa-machi, Hachioji-shi, Tokyo, 192- to operate this equipment if an unauthorized change 8525 Japan or modification is
