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!
When this product is connected to a power
amp with an LPF (low pass filter), turn the
LPF off before performing Auto EQ. Also,
set the cut-off frequency for the built-in LPF
of an active subwoofer to the highest fre-
quency.
!
The distance has been calculated by a
computer to provide optimum delay to en-
sure accurate results. Do not change this
value.
—
The reflected sound within the vehicle is
strong and delays occur.
—
The LPF on active subwoofers or exter-
nal amps delay the lower sounds.
!
If an error occurs during measurement, a
message appears and measurement is
cancelled. Check the following before mea-
suring the vehicle
’
s acoustics.
—
Front speakers (left/right)
—
Rear speakers (left/right)
—
Noise
—
Microphone for acoustical measure-
ment (sold separately)
—
Low battery
Performing Auto EQ
p
Auto EQ changes the audio settings as fol-
lows:
— “
Auto EQ&TA
”
is set to
“
On
”
.
=
For details, refer to
—
The fader/balance settings return to the
centre position.
=
For details, refer to
—
The equaliser curve switches to
“
Flat
”
.
=
For details, refer to
—
The front and rear speakers will automa-
tically be adjusted to a high pass filter
setting.
p
Previous settings for Auto EQ will be over-
written.
p
For AVIC-F77DAB and AVIC-F70DAB users
Do not press the
h
button to open or close
the panel when you are using the micro-
phone.
CAUTION
Do not turn off the engine while the measure-
ment is in progress.
1
Stop the vehicle in a quiet place, 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 EQ.
p
If driving restrictions are detected during
measurement, measurement is cancelled.
2
Fix the microphone for acoustical mea-
surement (sold separately) in the centre of
the headrest of the driver
’
s seat, facing for-
ward.
The Auto EQ may differ depending on where
you place the microphone. If desired, place
the microphone on the front passenger seat
and perform Auto EQ.
3
Disconnect the iPhone or smartphone
device.
4
Turn on the ignition switch (ACC ON).
If the vehicle
’
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 EQ.
5
Switch the AV source to
“
OFF
”
.
=
For details of the operations, refer to
playing the AV operation screen
Engb
183
Chapter
30
Audio
adjustments
Audio adjustments