Music SSD in the foreground, player in the in the middle, DAC (green/black) and amp (blue) in the background. SSD is connected to one of the Pi 2 USB ports. Digital audio goes out through an BNC connector from the 502DAC bolted to the back of the Pi touchscreen and plugged into the Pi hat connector. BNC coax cable connects to the DAC. Left picture shows the main piCorePlayer menu; right picture shows the Now Playing screen, in this case for the first track of Marc Ribot's excellent Silent Movies.