In the hunt for a new i/o box, I discovered Antelope Audio.After researching the PURE 2 , reading reviews , seeing the specs, i pulled the trigger on this. I use it as an I/O .....but it can also print superb master tracks. The clarity that results from the rubidium clocking and the very high grade AD/DA conversion was stunning from the moment I fired it up and tested it out. For those who need many inputs, this is not your solution as an I/O, but it certainly is for mastering or AD/DA conversion. But, if you are a VST user, and or compose for project oriented video, commercial, and movie, this may be what you have always wanted though you may never have known.i was skeptical about the usb connection, but it is fine for my uses and there is no latency issue whatsoever.The clocking alone improves the stereo imaging dramatically , also it improves the clarity of the the high and low shelves. The AD/DA converters also aid in this incredible clarity. That is to say that realism for VST sample libraries is greatly increased. So, perhaps it may breath new life into aspects of your sound pallet that you previously thought were "cheesy" or just plain bad (unless they are just cheesy and plain bad). Using Vienna Sounds, East/west products, 8DIo, Native instruments, and other notable libraries, i found a whole new realm of sonic fidelity unlocked by this PURE 2.2300 bucks seems like a lot, but this thing is the best deal for the money out there, to arrive at comparable sound quality , clocking and AD/DA conversion, you would have to spend 6 grand to come close, and would have to buy an AD/DA converter, buy a clock, and an I/O, which for comparable quality would put you in the ballpark of spending upwards of 10 grand.. Pure 2 is the best deal out there.I love this thing, get one if you can! Antelope Audio KICKS ASS!!!!