The very first room I visited at the 2013 RMAF was Sony's, where they were demonstrating the HAP-Z1ES hi-rez file player ($1999) that I reported on in September
. This neat device features a 1TB internal drive, Ethernet and WiFi connectivity, and can be controlled by an app running on a tablet or phone. It will upsample any format to double-DSD as well as handling native single-DSD and double-DSD files. It comes preloaded with 20 hi-rez albums from Sony, Warner, and Universal and the goal was to make file playback as easy and as fast as playing a disc. It doesn't, therefore, allow playback from a computer or NAS but a rear USB port allows the internal storage to be supplemented with an external drive.