Owner's Manual

Section
(~M
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e_n_u_o~p_e_r_at_i_o_n_s
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~)411
-
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
EQ
fundion
• Carry
out auto
EO
in as quiet a place
as
possible, with the car engine and
air
condi-
tioning switched off. Also
cut
power to car
phones or portable telephones
in
the car, or
remove them from the car before carrying
out auto
EO.
Sounds other than the mea-
surement tone (surrounding sounds, en-
gine sound, telephones ringing etc.) may
prevent correct measurement of the car in-
terior acoustic characteristics.
•
Be
sure to carry out auto
EO
using the op-
tional microphone. Using another micro-
phone may prevent measurement,
or
result
in incorrect measurement of the car inter-
ior acoustic characteristics.
•
In
order to perform auto
EO,
the
front
speaker must
be
connected.
•
When this unit is connected
to
a power
amp with input level control, auto
EO
may
not
be
possible if the power
amp's
input
level
is set below the standard level.
• When this unit is connected to a power
amp with
an
LPF,
turn
this
LPF
off before
performing auto
EO.
Also set the cut-off fre-
quency for the built-in
LPF
of an active sub-
woofer to the highest frequency.
•
The distance has been calculated
by
com-
puter to
be
the
optimum
delay to give accu-
rate results for the circumstances, so
please continue to use this value.
-The
reflected sound
within
the
car
is
strong and delays occur.
-The
LPF
on active subwoofers or exter-
nal amps delay the lower sounds.
•
Auto
EO
changes the audio settings
as
fol-
lows:
-The
fader/balance settings return to the
center position. (Refer to
Using
fader/
balance
adjustment
on page
57.)
-The
equalizer curve switches
to
Flat.
(Refer to
Recalling
equalizer
curves
on
page
57.)
-The
front, center and rear speakers will
automatically
be
adjusted
to
a high
pass fi
Iter setting.
•
Previous settings for auto
EO
will
be
over-
written.
Performing
auto
EQ
1
Stop the car
in
a place
that
is
quiet,
close
all
the
doors, windows and
sun
roof,
and then turn the engine off.
If the engine is left running, engine noise may
prevent correct auto
EO.
2
Fix
the optional microphone
in
the
cen-
ter
of
the
headrest
of
the driver's seat, fa-
cing
forward.
The auto
EO
may differ depending
on
where
you place the microphone.
If
desired, place
the microphone on the front passenger seat to
carry out auto
EO.
3 Turn the ignition switch
to
ON
or
ACC.
If the car's air conditioner
or
heater
is
turned
on,
turn
it off. Noise from the fan in the air
conditioner or heater may prevent correct auto
EO.
En@