The Onkyo TX-SV 646 is a versatile audio and video receiver that was designed to cater to both home theater enthusiasts and casual listeners. It includes a range of features, such as multi-channel amplification, offering a robust sound experience for movies, music, and gaming. With a power output of approximately 100 watts per channel measured at 8 ohms, it delivers sufficient power to drive various speaker configurations effectively. The receiver supports Dolby Pro Logic and various other surround sound formats, enhancing the listening experience across multiple sources. It includes several connectivity options, like multiple composite and S-video inputs, along with standard digital audio inputs for improved sound quality. The TX-SV 646 is equipped with a built-in tuner, allowing users to access radio broadcast stations easily. One of its stand-out features is the ability to be integrated into a multi-room audio system, further extending its usability. The design is user-friendly, with clearly labeled buttons and a straightforward remote control. Overall, it delivers a blend of functionality and performance that makes it suitable for both entry-level and more seasoned audio enthusiasts.