—
When a speaker is connected to a power
amp delivering output higher than the
speaker
’
s maximum input power capabil-
ity.
!
If a microphone for acoustical measurement
(sold separately) is not placed in an appropri-
ate location, the measurement tone may be-
come loud and measurement may take a long
time, resulting in battery drainage. Be sure to
place the microphone in the specified loca-
tion.
Before operating the Auto EQ
function
!
Perform Auto EQ in as quiet a place as pos-
sible, with the vehicle engine and air condi-
tioning switched off. Also, cut power to car
phones or cellular phones in the vehicle, or
remove them from the vehicle before per-
forming Auto EQ. Sounds other than the
measurement tone (surrounding sounds,
engine sound, telephones ringing, etc.)
may prevent correct measurement of the
vehicle
’
s acoustics.
!
Be sure to perform Auto EQ using the mi-
crophone for acoustical measurement
(sold separately). Using another micro-
phone may prevent measurement, or result
in incorrect measurement of the vehicle
’
s
acoustics.
!
To perform Auto EQ, the front speakers
must be connected.
!
When this product is connected to a power
amp with input level control, Auto EQ may
be impossible if the power amp
’
s input
level is set below the standard level.
!
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
canceled. 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
center position.
=
For details, refer to
—
The equalizer 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-8100NEX and AVIC-7100NEX
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.
En
204
Chapter
33
Audio adjustments
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