The Denon AVR-1400 is an audio/video receiver that was introduced by Denon. It was released as an upgrade to the previous model, the AVR-1300. The AVR-1400 offers various features such as Dolby Digital and DTS decoding, multiple audio inputs and outputs, as well as support for surround sound formats. It also includes a remote control for easy operation. The receiver is designed to enhance the audio and video experience in a home entertainment setup.