The Denon AVR-3801 is a home theater receiver produced by Denon. It was released in the early 2000s and was designed to deliver high-quality audio and video performance. The receiver offers a variety of features including Dolby Digital and DTS decoding, support for surround sound formats, multiple input/output options, and advanced audio processing technologies. It has a power output of around 100 watts per channel and can handle multiple audio sources and speakers. The Denon AVR-3801 is known for its reliability and solid build quality.