Well it's ram I had laying around. I got it installed and setup but it won't see my HD radio for some reason.
Also I'll be doing processing on the PC for a 4 way setup (3 way front + sub) so that'll require a bit more power. Eventually I'd like to do at least 2 zones if not 3. But I have to wait until the ability is more ready or go to something like the beagle/Raspberry PI.