The Sony BRAVIA Theatre Bar 5 is a 3.1 channel sound bar supplied with a subwoofer, using a dedicated centre channel to keep dialogue clear. Sound Field Optimization adapts the surround field to your room and DSEE improves the quality of compressed audio files. 3.1 channel layout with a dedicated centre channel for dialogue clarity DSEE upscales compressed, low-quality audio files for better playback This description was generated by AI and reviewed for accuracy.