The latest Denon x3800H AV receivers are so jam-packed with features that it's sometimes hard to conceive of a single user who might make use of them all. But the impressive specs of really excellent AVRs are designed not only to adapt to the changing technology of a myriad of potential source devices, but also to owners who might decide to modify and expand their home cinema in the future. built-in Wi-Fi for listening to music from a networked PC, free internet radio, and music services Dolby atmos home theater.