The Pioneer VSX-817 is a 7.1-channel AV receiver that provides various audio and video connectivity options. It supports Dolby Digital and DTS audio formats, making it suitable for home theater setups. The receiver features multiple audio inputs including HDMI and standard RCA, along with video inputs. It also has an integrated AM/FM tuner and offers various sound field options for enhanced audio playback. The unit is equipped with features like zone 2 support for multi-room audio, and it allows users to customize sound settings to optimize playback based on the specific environment.