I just recently replaced my Qutest because I felt it was bright on extended listening sessions. I now have a Musician Pegasus and find it to be just the improvement I was looking for. I know it was not expensive but it's a great sounding r2r dac.
My system consists of the following.
Rogue Audio RP-7 preamp
Parasound JC1 monoblocks
Focal Kanta 2 speakers
Optical Rendue streamer, Antipodes Server.