Pioneer DEQ-P9 - Manual (Page 26)

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Time Alignment Adjustment (Open state)
In the vehicle, the different speaker units are at widely differing distances from the
listener. The sounds from the speakers therefore reach the listener at different times. When
a multi-amp system is set up, this causes different delays for each frequency band (high,
mid, low and ultrabass-ranges), marring the position of the sound image and the overall
balance and disturbing the frequency characteristics.
The Time Alignment Adjustment function is able to synchronize the arrival times of the
different sounds by delaying the output of signals from the closest speaker units.
Switching to the Time Alignment Adjustment Mode
Measuring the Distance to be Corrected (Delay Time)
It is necessary to calculate the delay time to correct the time differences between speaker
units. In order to adjust the Time Alignment Adjustment function more easily, this System
allows the delay time to be set up by simply inputting the difference in the distance
between speaker units (the distance to be corrected). (The delay time will be automatically
calculated by this system.)
Although the distance from each speaker unit varies depending on the position of the
listener, the first set up is made for the driver’s seat. If the set up has been made for the
driver’s seat, the optimum delay time for the listener’s position can be set up by simply
switching the Position Selector function (refer to page 13) to the listening position. (This
System automatically calculates and sets up the optimum delay time for each position.)
2. Press the FUNCTION button 2.
The display switches to Time Alignment Adjustment Screen, allowing time alignment
adjustment.
1. Open the cover of the remote
controller in the Network Menu
(refer to page 4).
This switches to Network Menu
Setting Screen.
Audio Adjustment