3
Turn LEVER to adjust the source vo-
lume.
+4
to
–
4
is displayed as the source volume is
increased or decreased.
Notes
!
The AM volume level can also be adjusted
with this function.
!
The USB/SD volume level can also be ad-
justed with this function.
Using automatic sound levelizer
During driving, noise in the car changes ac-
cording to the driving speed and road condi-
tions. The automatic sound levelizer (
ASL
)
monitors such varying noise and automati-
cally increases the volume level, if this noise
becomes greater. The sensitivity (variation of
volume level to noise level) of ASL can be set
to one of five levels.
1
Use M.C. to select ASL.
Refer to
Introduction of audio adjustments
on
page 20.
2
Press M.C. to turn ASL on.
#
To turn ASL off, press
M.C.
again.
3
Turn LEVER to select the desired ASL
level.
Low
(low)
—
Mid-L
(mid-low)
—
Mid
(mid)
—
Mid-H
(mid-high)
—
High
(high)
Auto TA and EQ (auto-time
alignment and auto-equalizing)
Auto-time alignment automatically adjusts the
time alignment according to the distance be-
tween the listening position and each speaker.
The auto-equalizer automatically measures
the car
’
s interior acoustic characteristics, and
then creates an auto-equalizer curve based on
that information.
WARNING
As a loud tone (noise) may be emitted from the
speakers when measuring the car
’
s interior
acoustic characteristics, never perform auto TA
or auto EQ while driving.
CAUTION
!
Thoroughly check the conditions before per-
forming auto TA and EQ as the speakers may
be damaged if these functions are performed
when:
—
The speakers are incorrectly connected.
(For example, when a rear speaker is con-
nected as a subwoofer output.)
—
A speaker is connected to a power amp de-
livering output higher than the speaker
’
s
maximum input power capability.
!
If the microphone is placed in an unsuitable
position the measurement tone may become
loud and measurement may take a long time,
resulting in battery drainage. Be sure to place
the microphone in the specified location.
Before operating the auto TA and EQ
function
!
Perform auto TA and EQ in a quiet place,
with both the car engine and air condition-
ing switched off. Also turn off any car
phones or portable telephones in the car, or
remove them from the car. Sounds other
than the measurement tone (such as sur-
rounding sounds, engine sound, tele-
phones ringing) may prevent correct
measurement of the car
’
s interior acoustic
characteristics.
!
Be sure to perform auto TA and EQ using
the supplied microphone. Using another
microphone may prevent measurement, or
result in incorrect measurement of the
car
’
s interior acoustic characteristics.
!
In order to perform auto TA and EQ, the
front speaker must be connected.
!
When muting the front speaker units, auto
TA and EQ cannot be carried out. (Refer to
page 26.)
!
When this unit is connected to a power
amp with input level control, auto TA and
EQ may not be possible if the power amp
’
s
input level is set below the standard level.
En
29
Section
02
Operating
this
unit
Operating this unit
Summary of Contents for DEH-80PRS Series
Page 1: ...Operation Manual CD RDS RECEIVER DEH 80PRS English ...
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