In response to Onhwy61 the mach2 mac mini is the best transport I have ever owned. I have had tried over 32 different CD set ups over the years from DCS to highly modified Marantz SACD players and I currently own a HRT Music Streamer Pro. I have had hooked up the many different DACS with a standard Mac Mini and with the Mach2 the big bang for your dollar is the very front end before it gets the DAC. I have tried the following DACs; 1)Wyred For Sound DAC-2, 2)The Zodiac,3) Ayre QB 9, 4) the Audio Research DAC 8, 5) Benchmark, 6) Berkeley, 7) Arcam rdac, 8) PS Audio Perfect Wave DAC & Transport, 9)Cambridge Dac Magic 10) The Burson, 11)Music Streamer II+ and 12) Music Streamer Pro. I kept the cryo treated music streamer pro. If I where to rank these DACS I have tried in my system. I would say they all do different things but the keep in mind the Music Streamer Pro that is dual differential balanced with asynchronous USB input using the highly regarded Texas Instruments Burr Brown PCM 1794 and additionally gets its power from the Mach2 mini which is battery powered which kills the other DACS. But to be clear the Mach2 Mini even with the using only the headphone jack as an output did somethings better the standard mac mini with the most of DACS on the list. The output was a little lower but it for surely had better tonal balance and deep and wide sound stage. The sad thing is I can have any digital front end I want and I think what currently I have in my system is the best I have heard in my system. Is it better than my vinyl rig? It is scary to say this but now it comes down more to the recording than the format. With all the previous digital setups a so so vinyl recording recordings always sounded better than my previous digital set ups, but now I have some recordings that can sound better either way depending on mastering of the recording. Do not get me wrong when Two of the same quality pressing and recording on CD or Vinyl, vinyl still sounds better to me.