I am wishing to upgrade from a California Audio Sigma unit but there seem to be a lot of choices and not enough side-by-side reviews of one unit vs another. This is my criteria: * I'm only interested in playing back CD's, and digital files on thumb drives (mp3s, .wavs including hi-res). No SACD's, DVD audio etc so I don't need DSD support * I don't use headphones so a headphone amp is not a requirement * The DAC absolutely positively needs to be compatible with cd/media players that have pitch control and can handle changes in clock rate. This is a must * Ideally looking for a warm but rich analog type sound with superb bass, excellent detail and imaging without sounding too digital I have looked at the Schiit Yggdrasil, Benchmark DAC3, Bryston BDA2/3. Maybe there is a cheaper unit out there with less frills and features that would be a significant step up from my Sigma. Suggestions?