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Popping or crackling sound from wireless bass module | Bose Music Amplifier
Check for sources of wireless interference.
If the bass module is connected using a wired connection, try a wireless connection or use a shielded audio cable.
If a wired connection is being used due to wireless interference, replace the cable between the bass module and soundbar with a shielded audio cable. A 15-foot (4.5 m) shielded audio cable is available to order through Bose.