I don't doubt that the SGM Extreme is a great server streamer but dual Xeon processors and 48 gigs of ram? All you're doing is storing and streaming music not 3D rendering and VR design and video editing, isn't this thing a bit of overkill?
high end audio and attaining suspension of dis-belief do require headroom and overkill. that is where ease and naturalness and escape from a digital signature come from.
please go to the thread i posted the link to and start reading. i don't have the techie chops to make the technical points, but every possible question and challenge is posted and responded to about servers in general, and the Extreme in particular.