Sony CDX-M9905X - Manual (Page 33)

33
Adjusting the subwoofer
volume
— Sub Woofer
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
“Sub Woofer,” then press (ENTER) .
5
Press < or , repeatedly to adjust
the volume level, then press (ENTER) .
The volume level is adjustable in 1 dB steps
from –
∞, –10 dB to +10 dB.
6
Press (MENU) .
The display returns to the normal display.
Tip
“–
∞
” appears when the volume level is below –10 dB.
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.
Cut-off frequency
Frequency (Hz)
Le
ve
l
off