I've heard and/or owned several DACs in my system: Jeff Rowland Aeris, Rockna Signature, Mola Mola Tambaqui, PS Audio Directstream, Bricasti M1 se, DCS Bartok APEX, DCS Rossini APEX. I currently use a Chord Dave and have been looking to replace it. I'm currently trying a DCS Vivaldi APEX DAC. This is the first DAC that I've heard in my system that clearly does everything across the board better than the Chord Dave. I'm going to try to get a home audition of an MSB reference DAC or the Playback Design MPD-8 before making a decision on the Vivaldi.