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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.
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INPUT SENSITIVITY control
Adjust this control according to the pre-out
level of the centre unit connected to this
amplifier.
The sensitivities of amplifiers A and B can
be adjusted independently regardless of the
position of the input selector switch.
Refer to “Specifications” on the centre
unit’s instruction manual about the pre-out
level.
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OPERATION switch
The amplification methods of the signals
input to amplifiers A and B can be selected
independently according to the setting of
this switch.
• 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.)
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FILTER switch
This switch allows to apply high-pass or
low-pass filtering to the speaker outputs.
• HPF (High-Pass Filter) position:
The filter outputs the band of higher
frequencies than the frequency set with the
HPF FREQUENCY control.
• 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 turned
monaural (L+R) and the bass boost function
is activated.
^
HPF FREQUENCY control
Sets the cutoff frequency when the FILTER
switch is set to HPF.
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LPF FREQUENCY control
Sets the cutoff frequency when the FILTER
switch is set to LPF.
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INFRASONIC FILTER switch
When this switch is set to 15 Hz or 25 Hz,
frequencies below the setting value will be
cut. This serves to get rid of unwanted
vibrations that do not result in sound and
improves the speakers’ ability to reproduce
sound. Note that the speaker output will
automatically be set for monaural (L+R)
sound.
NOTE
English
5
AIR
INDUCTION
LO PASS
50 50200 200
HI PASS
LO PASS
50 50200 200
HI PASS
FILTER
FREQUENCY
A
B
POWER
COOLING FAN
OPERATION
/
PROTECTION
OPEN
/
CLOSE
LOW VOLTAGE
B.M.S.
4
/
3
/
2
CHANNEL POWER AMPLIFIER
&
^
LO PASS
50 50200 200
HI PASS
LO PASS
50 50200 200
HI PASS
FILTER
FREQUENCY
A
B
25Hz
15Hz
INFRASONIC
FREQ (Hz)
OFF
FILTER
LPF
OFF
HPF
OPERATION
MONO
STEREO
B.M.S.
B.M.S.
FREQ(Hz)
B.M.S.
(
+
6)
CLOSE
OPEN/ B.M.S.
(REMOTE)
0.2
0.5
5
1
2
3
4
10050
80
(MAX)(MIN)
INPUT SENSITIVITY(V)
CONTROL
B