Operation Manual

1 Display the “AV Sound Settings”
screen.
= For details, refer to Displaying the screen for
AV sound settings on page 141.
2 Touch [Sonic Center Control].
3 Touch
or to select a listening po-
sition.
p The larger the value of the range: “Left 7” to
“Right 7” setting, the greater the delay of
the speaker output.
p When “Left” is set, the left speaker output
is delayed. When “Right” is set, the right
speaker output is delayed.
Adjusting the equaliser curve
automatically (Auto EQ)
By measuring the vehicle’s acoustics, the
equaliser curve can be adjusted automatically
to suit the vehicle interior.
WARNING
A loud tone (noise) may be emitted from the
speakers when measuring the vehicle’s acous-
tics. Never perform the Auto EQ measurement
while driving.
CAUTION
! Thoroughly check the conditions before per-
forming Auto EQ, as the speakers may be da-
maged if this is performed under the following
conditions:
— When the speakers are incorrectly con-
nected. (For example, when a rear speaker
is connected as a subwoofer output.)
— 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 mobile 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 navigation system 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 navigation system is connected
to a power amp with an LPF (low pass fil-
ter), 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 frequency.
! The distance has been calculated by com-
puter to provide optimum delay to ensure
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.
Engb
146
Chapter
26
Customising preferences