Sony Support

Article ID : 00201317 / Last Modified : 27/03/2023Print

The Subwoofer or Rear Speaker cuts out or makes noise

    IMPORTANT: This article applies only to specific products and/or operating systems. Check Applicable Products and Categories for details.

    Various reasons can cause noise interference to the sound from the subwoofer or rear speakers. Try these steps and check the sound after completing each one.

    1. Move the speaker system away from any device that generates electromagnetic waves, such as a wireless LAN device or a microwave oven.
    2. Remove any obstacle between the Soundbar and subwoofer or rear speaker, or move them away from the obstacle.
    3. Move the Soundbar and subwoofer or rear speaker closer together.
    4. To reduce interference that may occur from another device on the same wireless LAN connection as the Soundbar and speakers, change the network connection of other devices (TV, Blu-ray Disc™ Player, and so on) to a wired LAN.
    5. Follow these steps to switch the RF Channel to Off and then back to On again:
      1. Press the HOME button on the Sound Bar remote control.
      2. Select Setup → Advanced Settings.
      3. Select Speaker Settings → Wireless Speaker Settings.
      4. In the RF Channel setting, select Off once, and then turn the setting On again.

    Notes:

    • We recommend the RF Channel setting be set to On (default setting: On). The Soundbar automatically selects the best channel for transmission when RF Channel is set to On, which makes it stronger against wireless interference.
    • If the sound issue persists, turn Off the setting.
    • It may take one minute to reconnect after you change the RF Channel settings.
    • The frequency setting is deleted after disconnecting the power cord. If you disconnect the power cord for some reason, switch RF Channel from Off to On again.