Originating with the Foster OEM design (model 443741, page H-4 of this .pdf) and seeing the light of day first as the Denon AD-H1001, then the Creative Aurvana Live! (CAL!), this model has now been refreshed as the E-Mu Walnut. This is a lovely example of a company—in this case Creative Technologies in the form of its subsidiary company E-Mu Systems—recognizing they have a solid-performer on their hands, and incrementally improving it. I wish I saw this more often.

Korean manufacturer SOtM, Inc. describes it on their website as a "music server based on Windows Server OS besides the original Linux [Vortexbox] OS based sMS-1000SQ." I'd describe it as a Windows-based PC that's designed and optimized to manage a database of music files and stream the music to local or networked DACs, and that supports multiple options for file management, playback, and target devices. (Hmmm: that's not much better, is it?)

Two
There are two kinds of good sound: good sound sound and good music sound. While I could describe the distinction in few words or many, it's easier to point to two recordings of Elgar's oratorio The Dream of Gerontius: by Sir Adrian Boult and the New Philharmonia Orchestra, with tenor Nicolai Gedda singing the title role (2 LPs, EMI SLS 987); and by Malcolm Sargent and the Liverpool Philharmonic Orchestra, with Heddle Nash in the lead (2 LPs, EMI RLS 709).