Just received my mac mini back from Ben at Mojo Audio. I sent it in for the audiophile treatment. New power filter, new trick external power supply, SSD and optimized software. I am running it through a Berkeley Audio alpha USB converter to my trusty and recently modded Sonic Frontiers DAC with EAT cool tubes. Much larger soundstage, more low level resolution. Using either Pure Music or Audirvana I am getting sound that rivals my Ayre C5Xe on CD and it is a lot more fun to use. Not sure yet whether improvement is due to the mods themselves or due to Audirvana, which is what Ben installed. I only have a few hours on this but the initial results are wicked good! Right now Van the Man is crooning to my wife and I may just have to slap him!