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Adjusting the treble (CDX-
M670, MDX-M690 only)
You can adjust the treble from the speakers.
1 Press (SOURCE) to select a source
(tuner, CD, or MD).
2 Press (SOUND) repeatedly until “TRE”
appears.
3 Press < or , to adjust the balance.
After 3 seconds, the display returns to the
normal playback mode.
Adjusting the balance (FAD)
(CDX-M670, MDX-M690
only)
You can adjust the sound balance from the front
and rear speakers.
1 Press (SOURCE) to select a source
(tuner, CD, or MD).
2 Press (SOUND) repeatedly until “FAD”
appears.
3 Press < or , to adjust the balance.
After 3 seconds, the display returns to the
normal playback mode.
Adjusting the front and rear
volume (CDX-M770 only)
1 Press (SOURCE) to select a source
(tuner, CD, or MD).
2 Press (SOUND) repeatedly to select
the “F” for the front speakers or “R”
for the rear speakers.
3 Press < or , to adjust the volume of
front/rear speakers.
After 3 seconds, the display returns to the
normal playback mode.
Adjusting the cut-off frequency and the
output volume level for the front/rear
speakers
To match the characteristics of the installed
speaker system, you can adjust the output
volume level and select the cut-off frequency of
the speakers.
1 Press (MENU).
2 Press M or m repeatedly to select
“Front HPF” or “Rear HPF.”
3 Press (ENTER).
4 Press < or , to select the cut-off
frequency.
Each time you press < or ,, the frequency
changes as follows:
off y 78 Hz y 99 Hz y 125 Hz y
157 Hz y 198 Hz
Cut-off frequency
Frequency (Hz)
Level
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