RuneAudio is a free and open source software that turns embedded hardware into Hi-Fi music players.
Take a cheap, silent and low-consumption mini-PC and make it perform as an high fidelity digital source.
It runs Linux/MPD
You can control it with its own web interface or any MPD client.
A Arch linux/MPD implementation running on
Raspberry Pi
BeagleBone Black
SolidRun CuBox
UDOO
Audiophile Linux is the operating system optimized for high quality digital audio reproduction. Created by audiophiles for people who share the same dream. To have their system a bit more better. AP-Linux is easily installed, user friendly, and absolutely free. Install it like any other GNU/Linux distribution and enjoy the music playback. Audiophile Linux comes with everything you need for playing your audio and video files.
Daphile is based on the open source Squeezebox Server, SqueezePlay and Linux.
Features
Debian/MPD based with DLNA and Airplay.
Platforms:
Raspberry Pi
BeagleBone Black
SolidRun CuBox
UDOO