Sony CDX-CA900X User Manual

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Adjusting the front and rear 
volume
1
Press 
(SOURCE)
 to select a desired 
source.
2
Press 
(SOUND)
 repeatedly until “FAD” 
appears.
3
Press 
<
 or 
,
 repeatedly to adjust 
the volume of front/rear speakers.
After 3 seconds, the display returns to the 
normal playback mode.
Adjusting the cut-off frequency for the 
front/rear speakers
To match the characteristics of the installed 
speaker system, you can select the cut-off 
frequency of the speakers.
1
During playback or radio reception, 
press 
(MENU)
.
2
Press 
M
 or 
m
 repeatedly until “HPF” 
appears.
3
Press 
<
 or 
,
 to select the cut-off 
frequency.
Each time you press 
< or ,, the frequency 
changes as follows:
off 
(default setting)
 
y
 78Hz 
y
 125Hz
4
Press 
(MENU)
.
After the frequency setting is complete, the 
display returns to normal playback mode.
Adjusting the volume of the 
subwoofer(s)
1
Press 
(SOURCE)
 to select a desired 
source.
2
Press 
(SOUND)
 repeatedly until “SUB” 
appears.
3
<
 or 
,
 repeatedly to adjust the 
volume.
After 3 seconds, the display returns to the 
normal playback mode.
Tip
The volume level is adjustable from –10 dB to +10 dB. 
(Below –10 dB, “–
∞ 
dB” is displayed.)
Adjusting the cut-off frequency for the 
subwoofer(s)
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 so you can get 
a clearer sound image.
1
During playback or radio reception, 
press 
(MENU)
.
2
Press 
M
 or 
m
 repeatedly until “LPF” 
appears.
Cut-off frequency
Frequency (Hz)
Level
off
Cut-off frequency
Frequency (Hz)
Le
v
e
l
off