Yamaha SR-B40A User Manual page 76

TROUBLESHOOTING > Other frequent actions
Install the sound bar and subwoofer in positions where they are not obstructed from each other by metal
(
furniture.
If a device emitting electromagnetic waves (such as a microwave oven or a wireless LAN device) is located
(
nearby, place the subwoofer and sound bar farther away from it.
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