The Onkyo TX-SR 501 is a versatile AV receiver designed to enhance home theater experiences. It offers several features and capabilities, making it suitable for various audio and video setups. The receiver supports Dolby Digital and DTS decoding, providing immersive surround sound for movies and music. It includes multiple audio and video inputs, allowing for the connection of various devices such as Blu-ray players, gaming consoles, and set-top boxes. The TX-SR 501 is equipped with at least five channels of amplification, delivering adequate power for medium-sized rooms. Users can expect a frequency response that accommodates a wide range of sound frequencies, delivering rich bass and clear highs. The receiver typically features a built-in AM/FM tuner, allowing for radio functionality. The design often includes an intuitive user interface, with an on-screen display for easy navigation through settings and adjustments. The remote control typically offers users the ability to manage the system conveniently from a distance, adjusting volume levels, switching inputs, and accessing different settings easily.