The VSX-832 supports up to 3.1.2ch Dolby Atmos*. Surround Enhancer*, developed by Dolby Laboratories, Inc., is a virtual speaker technology based on Head-Related Transfer Function (HRTF). With DSP, virtual surround speakers deliver the sound that usually comes from surround speakers. The 3.1.2ch is virtually expanded to 5.1.2ch to create 3D surround sound field. Even those who have difficulty installing rear speakers can also enjoy various audio formats** in a wide sound field with Surround Enhancer, as well Dolby Atmos.