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Controls / Indicator
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(W)
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1 LPF FREQUENCY control
Sets the cutoff frequency when the FILTER
switch is set to LPF.
2 FILTER 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).
3 BASS 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.
4 OPERATION 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.)
5 INPUT 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.
6 Remote 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