Kenwood KAC-648 - Manual (Page 4)

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 2
Ω
or greater. When
multiple speakers are to be connected,
ensure that the combined impedance is 2
Ω
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
Ω
or greater.
When multiple speakers are to be
connected, ensure that the combined
impedance is 4
Ω
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
R L
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
B A
(Lch)
MONO
MAX MIN
0.3
0.5
1.0
STEREO +
INPUT
SENSITIVITY(V)
MAX MIN
0.3
0.5
1.0
CONTROL
INPUT SELECTOR
L
A
A A B
GND
MONO
R
LINE IN
A B
LPF
OFF
FILTER
HPF
OPERATION
MONO(Lch) STEREO
1
5
2 3 4 6 7
8
#
$
%
9 0 !
@
INPUT SELECTOR
A A B
A m A m