Menu operations

Section

15

—The speakers are incorrectly connected. (For example, when a rear speaker is con- nected as a subwoofer output.)

—A speaker is connected to a power amp de- livering output higher than the speaker’s maximum input power capability.

!If the microphone is placed in an unsuitable position the measurement tone may become loud and measurement may take a long time, resulting in battery drainage. Be sure to place the microphone in the specified location.

Before operating the auto EQ function

!Carry out auto EQ in as quiet a place as possible, with the car engine and air condi- tioning switched off. Also cut power to car phones or portable telephones in the car, or remove them from the car before carrying out auto EQ. Sounds other than the mea- surement tone (surrounding sounds, en- gine sound, telephones ringing etc.) may prevent correct measurement of the car in- terior acoustic characteristics.

!Be sure to carry out auto EQ using the op- tional microphone. Using another micro- phone may prevent measurement, or result in incorrect measurement of the car inter- ior acoustic characteristics.

!In order to perform auto EQ, the front speaker must be connected.

!When this unit is connected to a power amp with input level control, auto EQ may not be possible if the power amp’s input level is set below the standard level.

!When this unit is connected to a power amp with an LPF, turn this LPF off before performing auto EQ. Also set the cut-off fre- quency for the built-in LPF of an active sub- woofer to the highest frequency.

!The distance has been calculated by com- puter to be the optimum delay to give accu- rate results for the circumstances, so please continue to use this value.

—The reflected sound within the car is strong and delays occur.

—The LPF on active subwoofers or exter- nal amps delay the lower sounds.

!Auto EQ changes the audio settings as fol- lows:

—The fader/balance settings return to the center position. (Refer to Using fader/ balance adjustment on page 57.)

—The equalizer curve switches to Flat. (Refer to Recalling equalizer curves on page 57.)

—The front, center and rear speakers will automatically be adjusted to a high pass filter setting.

!Previous settings for auto EQ will be over- written.

Performing auto EQ

1Stop the car in a place that is quiet,

close all the doors, windows and sun roof, and then turn the engine off.

If the engine is left running, engine noise may prevent correct auto EQ.

2Fix the optional microphone in the cen- ter of the headrest of the driver’s seat, fa- cing forward.

The auto EQ may differ depending on where you place the microphone. If desired, place the microphone on the front passenger seat to carry out auto EQ.

3Turn the ignition switch to ON or ACC. If the car’s air conditioner or heater is turned on, turn it off. Noise from the fan in the air conditioner or heater may prevent correct auto EQ.

operations Menu

En 69