The Denon AVR-1603 is a home theater receiver that was released by Denon in 2002. It is a part of the company's AVR series of audio/video receivers. The AVR-1603 offers 5-channel surround sound with a power output of 70 watts per channel. It supports Dolby Digital and DTS decoding and features a range of audio and video inputs, including analog and digital inputs, composite and S-video inputs, and optical and coaxial digital inputs. The receiver also includes a built-in AM/FM tuner and comes with a remote control for easy operation. Overall, the Denon AVR-1603 is a versatile and reliable receiver for home theater setups.