The Pioneer VSX-521 is a 5.1-channel AV receiver designed for home theater systems. It offers various connectivity options, including HDMI inputs for high-definition video and audio. It supports various audio formats, including Dolby TrueHD and DTS-HD Master Audio, enhancing the surround sound experience. The receiver also features a user-friendly interface and allows for Onkyo's Auto Room Acoustic Calibration system to optimize sound based on the room's acoustics. Additionally, it includes multiple DSP modes for creating different sound environments suitable for movies, music, and gaming.
