Sony HT-A9, Help Manual

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Help Guide
Home Theatre System
HT-A9
Sound Field Optimization is failed.
Speakers may not be correctly located. Check the installation location on the labels on the bottom of the four
speakers and install them in the correct location.
Install the speakers upright so that the labels on the bottom of the speakers are directed downwards.
If the speaker is installed sideways, Sound Field Optimization cannot be performed properly.
If the speaker is installed in an inclined state, the microphone for measurement of the speaker is also inclined and
the sound for measurement ceiling distance is output in an inclined state. These may be the cause that the
Sound Field Optimization failed.
Perform Sound Field Optimization again in a situation where the surrounding is quiet.
Install the speakers with a distance of more than 50 cm (19 3/4 in). If the distance between speakers is too close,
Sound Field Optimization cannot be performed properly.
Bring the speakers closer if the speakers are installed at a distance far away from each other.
If there is any obstacle between speakers or the microphone for measurement of the speaker is blocked by an
obstacle, Sound Field Optimization cannot be performed properly. Remove it if there is any obstacle between
speakers or in front of speakers.
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