The Marantz NR1604 is a versatile 7-channel home theater receiver with network capabilities in a slim-line body that delivers spacious, realistic surround sound from a wide variety of sources. This receiver features support for next-generation TV displays capable of displaying 4K Ultra HD video. Along with 4K Ultra HD and 3D pass-through the NR1604 also features video upscaling technology to 4K Ultra HD. The network functions of the NR1604 let you enjoy the music library of your iPhone®, iPod touch® and iPad® using AirPlay®, and a wide variety of content such as music streaming from Pandora, Spotify, and SiriusXM. With the network functions you can also use your Android or iOS device to operate the NR1604 via the available Marantz Remote App. In addition, with the Multi Zone functionality you can even output music from the main room to a different room such as a kitchen or bedroom via an additional pair of speakers.