Black plate (24,1)
<CRD3740-A>24
Using subwoofer output
This unit is equipped with a subwoofer output
which can be turned on or off. When a sub-
woofer is controlled with this unit, first, switch
the RCA output setting to subwoofer, then
turn the subwoofer output on. For more de-
tails, see
Switching the RCA output setting
on
page 32.
1 Press AUDIO to select Phase.
When the RCA output setting is
P/O :S/W
,
you can select
Phase
. Press
AUDIO
until
Phase
appears in the display.
2 Press
a
to turn subwoofer output on.
Phase:NOR
appears in the display. Subwoofer
output is now on.
#
To turn subwoofer output off, press
b
.
3 Press
c
or
d
to select the phase of sub-
woofer output.
Press
c
to select reverse phase and
Phase:REV
is displayed. Press
d
to select nor-
mal phase and
Phase:NOR
is displayed.
Adjusting subwoofer (low pass
filter) settings
When the subwoofer output is on, you can ad-
just the cut-off frequency and the output level
of the subwoofer.
1 Press AUDIO to select the subwoofer
setting.
When the subwoofer output is on, you can se-
lect the subwoofer setting. Press
AUDIO
until
80
appears in the display.
#
If the subwoofer setting has been previously
adjusted, the frequency of that previously se-
lected will be displayed instead of
80
.
2 Press
c
or
d
to select cut-off frequency.
Each press of
c
or
d
selects cut-off frequen-
cies in the following order:
50
63
80
100
125
(Hz)
Only frequencies lower than those in the se-
lected range are output from the subwoofer.
3 Press
a
or
b
to adjust the output level
of the subwoofer.
Each press of
a
or
b
increases or decreases
the level of the subwoofer (e.g.,
+6
to
24
).
Press
a
or
b
until you see the desired value
displayed.
Adjusting low pass filter
attenuation slope
When the subwoofer output is on, you can ad-
just the continuity of sound between speaker
units.
1 Press AUDIO to select the slope setting.
Press
AUDIO
until
SLOPE
appears in the dis-
play.
2 Press
c
or
d
to select slope.
Press
c
and
12
is displayed. Press
d
and
18
is displayed.
Note
When slope of subwoofer and high pass filter are
12
, and same cut-off frequency, the phase is re-
versed 180 degrees at the cut-off frequency. In
this case, reversing the phase assures improved
sound continuity.
Using the high pass filter
When you do not want low sounds from the
subwoofer output frequency range to play
from the front or rear speakers, turn the HPF
(high pass filter) on. Only frequencies higher
than those in the selected range are output
from the front or rear speakers. You can set up
front and rear separately.
Audio Adjustments
En
24
Section
07
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