Bryston BDP-1
http://www.avrev.com/home-theater-media-servers/music-servers/bryston-bdp-1-digital-file-player.html
Bryston BDP-1 Revisited and a Q&A with James Tanner
Logitech Squeezebox Touch
http://www.avrev.com/home-theater-media-servers/music-servers/logitech-squeezebox-touch.html
Logitech Squeezebox Touch Enhanced Digital Output Applet and More!
http://www.positive-feedback.com/Issue61/logitech.htm
Marantz NA7004
http://www.avrev.com/home-theater-media-servers/music-servers/marantz-na7004-network-player.html
Marantz NA-11S1 Reference Network Player/DAC
Micromega AS400
Musical Fidelity M1 CLiC
Olive O4HD
http://www.avrev.com/home-theater-media-servers/music-servers/olive-04hd-music-server-review.html
Olive O6HD
http://www.avrev.com/home-theater-media-servers/music-servers/olive-06hd-music-server-review.html
Plinius Tiki
SOtM sMS-100 Mini Server & mBPS-d2s Intelligent Battery