Beforeoperating the auto TA and EQfunction
!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 autoTA 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 outauto 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 carr ying out auto TAand
EQ.In addition, the cut-off frequency for
built-inLPF of an activesubwoofer 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.
—Whendelays occur forlow sounds due
tothe influence of the LPF on active
subwoofersor external amps.
!AutoTA and EQ changes the audio settings
asbelow:
—Thefader/balance settings return to the
centerposition. (Refer to page 75.)
—Theequalizer curve switchesto FLAT.
(Referto page 80.)
—Itwill be adjusted automatically to high
passfilter setting for front,center and
rearspeaker.
!Ifyou carr y out auto TAand EQ when a pre-
vioussetting of this already exists, the set-
tingwill be replaced.
Carryingout auto TA and EQ
1 Stopthe car in a place that is as quiet
aspossible, close all doors, windows and
thesun roof, and then turn the engine off.
Ifthe engine is left running, engine noise may
preventcorrect auto TA and EQ.
2 Fixthe supplied microphone in the cen-
terof the headrest of the driver’s seat, fa-
cingforward, using the belt (sold
separately).
Theauto TA and EQ may differ depending on
whereyou place the microphone. If desired,
placethe microphone on the front passenger
seatto carry out auto TA and EQ.
3 Turnthe ignition switch to ON or ACC.
Ifthe car ’s air conditioner or heater is turned
on,turn it off. Noise from the fan in the air
conditioneror heater may prevent correct auto
TAand EQ.
#PressSRC to turn the source on if this unit is
turnedoff.
Available accessories
En
82
Section
04