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Sound is not heard from all speakers | SoundTouch® 520 home theater system
If the issue is with your bass module or your rear surround speakers, select it below for more help.
For issues with DVDs, try a different audio track (if available).
Some DVDs have multiple audio tracks available in the DVD audio/sound menu. In the DVD menu, select a different audio track and listen for differences.
Run the ADAPTiQ audio calibration to optimize the sound of your system.
Since different environments affect how sound is heard, use ADAPTiQ can calibrate you system. It listens to how your speakers sound in your room, then adjusts the sound as needed to optimize sound quality. For more info, see ADAPTiQ system setup and deactivation.
Check the condition of the speaker wires and be sure they are secure at both ends.
Check the speaker wires for any kinks, scratches, cuts or damage. Replace any damaged wires and check that they are securely connected at both ends.