The Marantz SR 4003 is a versatile audio/video receiver that combines high-quality sound with multiple connectivity options. It is designed to deliver an immersive home theater experience with performance tuning, ensuring audio fidelity across a range of media formats. The unit is equipped with 5.1-channel surround sound processing, offering Dolby Digital and DTS decoding for enhanced audio playback. The SR 4003 features a power output of 90 watts per channel across five channels, which is suitable for driving medium to large speakers in a typical home environment. It also incorporates various inputs, including multiple HDMI connections, S-video, composite video, and analog audio inputs. The built-in AM/FM tuner allows for easy access to radio stations. User-friendly remote control and on-screen display facilitate effortless navigation through settings and features. In addition, the SR 4003 supports several audio formats and enhances sound quality through its advanced circuitry and components, making it a solid choice for both movie and music enthusiasts.