Sony CDX-M9900 Operating Instructions (primary manual), Руководство по эксплуатации

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39
Adjusting the cut-off frequency for the
subwoofer(s)
— LPF (Low pass filter)
To match the characteristics of the connected
subwoofer(s), you can cut out the unwanted high
and middle frequency signals entering the
subwoofer(s). By setting the cut-off frequency
(see the diagram below), the subwoofer(s) will
output only low frequency signals for a clearer
sound.
1
Press
(SOURCE)
to select a source
(radio, CD, MD or AUX).
2
Press (MENU) .
3
Press < or , repeatedly to select
“Sound,” then press
(ENTER)
.
4
Press < or , repeatedly to select
“LPF,” then press (ENTER) .
5
Press < or , repeatedly to select the
desired cut-off frequency, then press
(ENTER) .
Each time you press
<
or
,
, the frequency
changes as follows:
OFF
y
125Hz
y
78Hz
6
Press
(MENU)
.
The display returns to the normal display.
To cancel the cut-off frequency, select “OFF” in
Step 5.
Setting the loudness
— Loudness
The bass and treble will be reinforced to enjoy
clear sound at low volume.
1
Press
(SOURCE)
to select a source
(radio, CD, MD or AUX).
2
Press (MENU) .
3
Press < or , repeatedly to select
“Sound,” then press
(ENTER)
.
4
Press
<
or
,
repeatedly to select
“Loudness.”
5
Press (ENTER) repeatedly to select
“ON.”
6
Press
(MENU)
.
The display returns to the normal display.
To cancel the loudness, select “OFF” in step 5.
Cut-off frequency
Frequency (Hz)
Le
ve
l
off