I own chord Mojo which sound out of this world for 600$, but I heard the DAVE with Blu mk2 in Tokyo, the best sounding I ever heard.
And after so much reading from Dave owners in head-fi org who owned or compare it with TotalDac,MBS,dCS,HQplayer and others they love how DAVE for its price exceeds them. Dave could be by far the best DAC ( Digital to PURE analog ) ever made and with Blu Mk2 an upsampler/cdplayer it's hit a far new level.
If you don't hear it you wan't understand