Phase
You can switch phase (normal, reverse) for
each speaker unit
’
s input signal. When the
continuity of sound between speakers is im-
precise, try switching phase. This may improve
the continuity of sound between speakers.
Points concerning network adjustments
Cut-off frequency adjustment
!
With the low-range speaker installed in the
rear tray, if you set
Low LPF
cut-off fre-
quency high, bass sound is separated so
that it appears to come from the rear. You
are recommended to set
Low LPF
cut-off
frequency to 100 Hz or lower.
!
The maximum input power setting for mid-
dle-range and high-range speakers is
usually lower than low-range speakers.
Please be aware that if the
Mid HPF
or
HighHPF
cut-off frequency is set lower
than required, strong bass signal input
may damage the speaker.
Level adjustment
The basic frequencies of many musical instru-
ments are in the middle range. First perform
middle-range level adjustment, followed by
high-range and then low-range level adjust-
ment in that order.
Slope adjustment
!
If you set a small absolute value for the
slope (for a gentle slope), interference be-
tween adjacent speaker units can easily re-
sult in degraded frequency response.
!
If you set a large absolute value for the
slope (for a steep slope), continuity of
sound between speaker units is degraded,
and sounds appear to be separated.
!
If you set the slope to 0 dB/oct. (pass), the
audio signal bypasses the filter, so the filter
does not have an effect.
Phase adjustment
When the cross-over point value for filters on
both sides is set to
–
12 dB/oct., the phase is
reversed 180 degrees at the filter cut-off fre-
quency. In this case, reversing the phase as-
sures improved sound continuity.
Normal phase
Reverse phase
Crossover point
Muting the speaker unit (filter)
You can mute each speaker unit (filter). When
a speaker unit (filter) is muted, no sound is
outputted from that speaker.
!
If you mute the selected speaker unit (fil-
ter),
MUTE
blinks and no adjustments are
possible.
!
Even if any speaker unit (filter) is muted,
you can adjust the parameters for other
speaker units (filters).
1
Use M.C. to select NW 1.
Refer to
Introduction of audio adjustments
on
page 20.
2
Turn LEVER to select the speaker unit
(filter) to be adjusted.
Low LPF
(low-range speaker LPF)
—
Mid HPF
(middle-range speaker HPF)
—
Mid LPF
(mid-
dle-range speaker LPF)
—
HighHPF
(high-range
speaker HPF)
3
Press M.C. to mute the selected speaker
unit (filter).
MUTE
blinks in the display.
#
To cancel the muting, press
M.C.
again.
Adjusting network
1
Use M.C. to select NW 1.
Refer to
Introduction of audio adjustments
on
page 20.
En
24
Section
02
Operating this unit
Summary of Contents for DEH-80PRS Series
Page 1: ...Operation Manual CD RDS RECEIVER DEH 80PRS English ...
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