Before operating the auto eq, Function, Performing auto eq 155 – Pioneer AVIC-F850BT User Manual

Page 155: Customising preferences, Before operating the auto eq function, Performing auto eq

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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.

! 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” on the “EQ Menu” screen is

set to

“On”.

= For details, refer to Using the auto-ad-

justed equaliser on page 153.

! The fader/balance settings return to the

centre position.

= For details, refer to Using balance ad-

justment on page 150.

! The equaliser curve switches to “Flat”.

= For details, refer to Using the equali-

ser 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-F50BT users

<CRB4228-A>155

Engb

155

Chapter

26

Customising

pr
eferences

Customising preferences

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