Esoteric DV-50: Tweaks, Up-sample settings, etc.

Hi. My experience has been that on larger works the R-DOT plus FIR works best, but om smaller groups and especially solo instruments R-DOT alone is preferable--less bass, more lower midrange clarity. I don't leave it on all the time. After an hour warmup it seems just as good. I found balanced connection was far superior to single-ended. HMS Gran Finale balanced is marvelous with the unit, but Purist Dominus Rev. B is even better (although more than twice as expensive). Have only used an Absolute power cord on it so can't comment about various ones, but I'm not a big power cord believer for source components and preamps--unlike interconnects, I find the differences between them change the sound of the unit, but don't necessarily improve it. (Difference seems to be most helpful on power amps, however--there I have found a significant improvement with expensive cords.) Unit improves noticeably up to 200 hours. Great player, and since I also have a Classe Omega CD/SACD player and a dCS Purcell and Elgar, that's saying a lot. Have also found the Esoteric benefits from isolation; I have it resting on a Signal Guard II isolation platform, spiked feet resting in four Aurios Pros. The Esoteric is really a hell of a bargain.