Sony SRS-X9 - Manual (Page 345)

Personal Audio System
SRS-X9
The sound is distorted.
Make sure the iPhone/iPad/iPod is connected securely to the USB A port ( A).
Tap the VOL (volume) - button to turn down the volume.
Set the “EQ” setting of the iPhone/iPad/iPod to “Off” or “Flat.”
The iPhone/iPad/iPod may not be supported by the speaker. See “ Compatible iPhone/iPad/iPod models .”
Related Topic
Compatible iPhone/iPad/iPod models
Notes on use
4-535-194-11(3)
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