i already have the Grace M900, or else i would jumping on this. for anyone in need of a DAC, this is a no brainer. Grace makes AMAZING sounding equipment, but of course 'crap in = crap out', so make sure to feed your rig hifi or lossless source whenever possible. great collaboration, massdrop/grace!
treyking+1. I have a M902 and a M9XX. I've also owned their mic pres, a Felix, a Bix, and a channel strip (perhaps the bess sounding bass guitar preamp ever). They make fantastic sounding gear.