Kenwood KAC-648 Car Amplifier User Manual


 
1
Fuse (25 A
×
1)
2
Battery terminal
3
Ground terminal
4
Power control (REMOTE) terminal
5
Amplifier A speaker output
terminals
6
Amplifier B speaker output
terminals
SPEAKER 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 2or greater. When
multiple speakers are to be connected,
ensure that the combined impedance is 2
or greater for each channel.
• Bridged Connections:
When you wish to use the unit as a high-
output monaural amplifier, bridged
connections are used. (Make connections
to the LEFT channel (+) and the RIGHT
channel (–) SPEAKER OUTPUT terminals.)
The speakers to be connected should
have an impedance of 4 or greater.
When multiple speakers are to be
connected, ensure that the combined
impedance is 4 or greater.
The rated input of the speakers should be
no less than the maximum output of the
amplifier. Otherwise malfunction may
result.
7
Speaker level input terminals
8
INPUT SELECTOR switch
This switch selects the input method of the
signals to be amplified by amplifiers A and
B.
• A B position:
Amplifies both of the signals input to
amplifiers A and B.
• A position:
Amplifies only signal input amplifier A with
both amplifiers A and B.
9
Amplifier A LINE IN terminal
0
Amplifier B LINE IN terminal
2CAUTION
4
Controls
This is a 4 channel amplifier including 2 stereo amplifiers in a body. One amplifier is referred to
as amplifier A and the other is amplifier B. This unit is compatible with a large variety of
systems by combining the switches and functions described in the following.
A
B
A
B
SPEAKER LEVEL INPUT
RL
LEFT RIGHT
SPEAKER LEVEL INPUT
LEFT
BRIDGED
RIGHT
A
B
SPEAKER OUTPUT
POWER IN
FUSE(25A)
BATT P.CON(REMOTE)
GND
25
LINE OUT
INPUT
SENSITIVITY(V)
CONTROL
OPERATION
4 CHANNEL
POWER AMPLIFIER
L
R
B
LPF
OFF
FILTER
HPF
BA
(Lch)
MONO
MAXMIN
0.3
0.5
1.0
STEREO
+
INPUT
SENSITIVITY(V)
MAXMIN
0.3
0.5
1.0
CONTROL
INPUT SELECTOR
L
A
AA B
GND
MONO
R
LINE IN
A B
LPF
OFF
FILTER
HPF
OPERATION
MONO(Lch)STEREO
1
5
2 3 46 7
8
#
$
%
9
0!
@
INPUT SELECTOR
AA B
Am
Am