The Denon AVR-4800 is a receiver from Denon, a well-known audio equipment manufacturer. It was released in the late 1990s and is part of Denon's AVR series. The AVR-4800 is designed to provide high-quality surround sound and support for various audio formats. It has multiple channels and power amplifiers, allowing it to deliver immersive audio experiences. The receiver includes features such as Dolby Digital and DTS decoding, which enhance the audio performance. The Denon AVR-4800 also has video switching capabilities, allowing users to connect multiple audio and video devices to the receiver. Overall, it is a capable and versatile receiver that was well-regarded during its time.