Excellent - i got the Dac , moon 300d - but version 1 from a 2-3 years ago . At that time the simaudio folk didn't feel the asynchronous usb thing was going to be a concern -- version 2 is asynchronous lol . rather than swap i would rather go Bryston buc-1 - better on my budget and I'm sure a fantastic sound combo with the kit i presently have tied in with my mac . and its a start for an all bryston system in 2014 !
Thanks James !