Using the auto-equalizer
Theauto-equalizer is the equalizer curve cre-
atedby auto TA and EQ (refer to Auto TA and
EQ(auto-time alignment and auto-equalizing)
onthis page).
Youcan turn the auto-equalizer on or off.
1 TouchAuto EQ.
#Youcannot use this function if auto TA and
EQhas not been carried out.
2 Touchdto turn the auto-equalizer on.
#Toturn auto-equalizer off, touch c.
Auto TAand EQ (auto-timealignment and auto-equalizing)
Theauto-time alignment is automatically ad-
justedfor the distance between each speaker
andthe listening position.
Theauto-equalizer automatically measures
thecar interior acoustic characteristics, and
thencreates the auto-equalizer cur ve based
onthat information.
WARNING
Toprevent accidents, never carry out auto TA and
EQwhile driving. When this function measures
thecar interior acoustic characteristics to create
anauto-equalizer curve, a loud measurement
tone(noise) may be outputted from the speakers.
CAUTION
!Carryingout auto TA and EQ under the follow-
ingconditions may damage the speakers. Be
sureto check the conditions thoroughly be-
forecarrying out auto TA and EQ.
—Whenspeakers are incorrectly connected.
(e.g.,When a rear speaker is connected to
asubwoofer output.)
—Whena speaker is connected to a power
ampdelivering output higher than the
speaker’smaximum input power capabil-
ity.
!Ifthe microphone is placed in an unsuitable
positionthe measurement tone may become
loudand measurement may take a long time,
resultingin a drain on battery power. Be sure
toplace the microphone in the specified loca-
tion.

Beforeoperating the auto TA and EQ

function

!Carryout auto TA and EQ in as quiet a
placeas possible, with the car engine and
airconditioning switched off. Also cut
powerto car phones or portable telephones
inthe car, or remove them from the car be-
forecarrying out auto TA and EQ. Sounds
otherthan the measurement tone (sur-
roundingsounds, engine sound, tele-
phonesringing etc.) may prevent correct
measurementof the car interior acoustic
characteristics.
!Besure to carry out auto TA and EQ using
thesupplied microphone. Using another
microphonemay prevent measurement, or
resultin incorrect measurement of the car
interioracoustic characteristics.
!Whenfront speaker is not connected, auto
TAand EQ cannot be carried out.
!Whenthis unit is connected to a power
ampwith input level control, auto TA and
EQmay not be possible if you lower power
ampinput level. Set the power amp’s input
levelto the standard position.
!Whenthis unit is connected to a power
ampwith an LPF, turn off the LPF on the
poweramp before carrying out auto TA and
EQ.In addition, the cut-off frequency for
built-inLPF of an active subwoofer should
beset to the highest frequency.
!Thetime alignment value calculated by
autoTA and EQ may differ from the actual
distancein the following circumstances.
However,the distance has been calculated
bycomputer to be the optimum delay to
giveaccurate results for the circum-
stances,so please continue to use this
value.
—Whenthe reflected sound within a vehi-
cleis strong and delays occur.
Available accessories
En
92
Section
19