4English
Controls / Indicator
12 3 45
(W)
20
40
10
1LPF FREQUENCY control
Sets the cutoff frequency when the FILTER
switch is set to LPF.
2FILTER switch
This switch allows to apply high-pass or
low-pass filtering to the speaker outputs.
•HPF (High-Pass Filter) position:
Only frequencies of 150 Hz or higher are
output. (Frequencies below 150 Hz are cut.)
•OFF position:
The entire bandwidth is output without
filtering.
•LPF (Low-Pass Filter) position:
The filter outputs the band of lower
frequencies than the frequency set with the
LPF FREQUENCY control.
The speaker output is automatically
switched to monaural (L+R).
3BASS BOOST switch
Sets the boost level for bass control.
•12dB position:
BASS BOOST is +12 dB.
•KAC-7201: OFF position:
BASS BOOST is OFF.
•KAC-7251: OFF(REMOTE) position:
Can be set from the Remote Controller.
If you have disconnected the Remote
Controller, the BASS BOOST is turned OFF.
4OPERATION switch
This switch is used to select the operation
mode of the amplifier.
•STEREO position:
The amplifier can be used as a stereo
amplifier.
•MONO (Lch) position:
Amplifies the signal input from the left side
only. Set to this position and make bridged
connections to use as a high-power
monaural amplifier. (The input right signal is
not output.)
5INPUT SENSITIVITY control
Set this control according to the pre-output
level of the center unit connected with this
unit, or to the maximum power output of
the genuine-accessory car stereo.
Use the diagram on the right as a guide.
For the pre-output level or the maximum
power output, refer to the “Specifications”
in the instruction manual of the center unit.
6Remote controler control (KAC-
7251 only)
When the "BASS BOOST" switch is in the
"OFF (REMOTE)" position, control the Bass
Boost level from the Remote Controller.
•OFF position:
BASS BOOST is OFF.
•+6/+9/+12 position:
Boost the bass sound by +6 dB, +9 dB and
+12 dB, respectively.
NOTE
NOTE
KAC-7251/7201(KE) 1English 02.11.14 10:30 AM Page 4