Kenwood KAC-6404 Owner's Manual | Page 6

Kenwood Audio Owner's Manual - KAC-6404.
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6  English

Connection 

CENTER UNIT

(CD receiver, etc.)

A channel input

RCA cable*

Power control wire 
(Blue/ White)

  RCA cable or Speaker level input connection

Genuine-accessory car 

stereo

(No line output center unit 

etc.) 

ACC

Battery 

Car fuse box 

• RCA cable connections

• Speaker level input connections

B channel input

Speaker level input cable 

NOTE

•  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.

Speaker level input terminals

•  The genuine-accessory car stereo shall have a 

maximum power output of no more than 40 W.

•  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, pop noise may be generated when 
the power of the genuine-accessory car stereo is 
switched ON/OFF.

Speaker output terminals (A.ch/ B.ch)

•  Stereo Connections:
  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:
  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.

Power control terminal

Controls the unit ON/OFF.

NOTE

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

Fuse 

KAC-7404: 40 A × 1
KAC-6404: 25 A × 1

Cable Color of the connector

 A channel
 Left

9 White

· White/Black

 A channel
 Right

9 Gray

· Gray/Black

 B channel
 Left

9 Green

· Green/Black

 B channel
 Right

9 Purple

· Purple/Black

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