Black plate (80,1)
Section
13 
Audio Adjustments
Auto TA and EQ
The
The
WARNING
To prevent accidents, never carry out auto TA and EQ while driving. When this function measures the car interior acoustic characteristics to create an
CAUTION
!Carrying out auto TA and EQ under the follow- ing conditions may damage the speakers. Be sure to check the conditions thoroughly be- fore carrying out auto TA and EQ.
—When speakers are incorrectly connected. (e.g., When a rear speaker is connected to 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 the microphone is placed in an unsuitable position the measurement tone may become loud and measurement may take a long time, resulting in a drain on battery power. Be sure to place the microphone in the specified loca- tion.
80
En
Before operating the auto TA and EQ function
!Carry out auto TA and EQ in as quiet a place as possible, with the car engine and air conditioning switched off. Also cut power to car phones or portable telephones in the car, or remove them from the car be- fore carrying out auto TA and EQ. Sounds other than the measurement tone (sur- rounding sounds, engine sound, tele- phones ringing etc.) may prevent correct measurement of the car interior acoustic characteristics.
!Be sure to carry out auto TA and EQ using the supplied microphone. Using another microphone may prevent measurement, or result in incorrect measurement of the car interior acoustic characteristics.
!When front speaker is not connected, auto TA and EQ cannot be carried out.
!When muting the front speaker units, auto TA and EQ cannot be carried out. (Refer to page 75.)
!When this unit is connected to a power amp with input level control, auto TA and EQ may not be possible if you lower power amp input level. Set the power amp’s input level to the standard position.
!When this unit is connected to a power amp with an LPF, turn off the LPF on the power amp before carrying out auto TA and EQ. In addition, the
!The time alignment value calculated by auto TA and EQ may differ from the actual distance in the following circumstances. However, the distance has been calculated by computer to be the optimum delay to give accurate results for the circum- stances, so please continue to use this value.
—When the reflected sound within a vehi- cle is strong and delays occur.
