Before Operating The Auto Eq Function; Performing Auto Eq - Pioneer AVIC-Z150BH Operation Manual

Customizing preferences
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 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 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.
! 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 on the EQ Menu screen is
!
set to On .
= For details, refer to Using the auto-ad-
justed equalizer on page 153.
! The fader/balance settings return to the
center position.
= For details, refer to Using balance ad-
justment on page 150.
! The equalizer curve switches to Flat .
= For details, refer to Using the equali-
zer on page 151.
! 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-Z150BH users
Chapter
27
155
En