See my audiophile network music streaming player built from an old stereo tuner and a Raspberry Pi. I've hacked the control board to connect to the Pi's GPIO pins and control the music playback software via the front panel buttons. This unit has a coaxial digital audio output and web-based user interface.
moOde audio software: moodeaudio.org/
project repository: github.com/alanb128/audio-streaming-box
HiFiBerry Digi2 PRO: www.hifiberry.com/shop/boards/hifiberry-digi2-pro/
25 фев 2024