Hi Fred,
You might want to also consider the new MSB Technology Signature Platinum DAC IV and the partnering Platinum Data CD IV transport. There is an optional resistor stepped attenuator for the DAC and two analog inputs (balanced on XLR and single ended on RCA) which can accommodate the output of your phono preamp and tuner. I have found the stepped attenuator to be vastly superior to my former Bent Audio TAP transformer volume control in tems of transparency. The DAC is truly differential in all respects and drives the outputs directly with no output stage with its potential for sonic degradation.
My associates compared the MSB Signature Platinum DAC III and CD III combination to an Esoteric X-03SE and the former had the edge in terms of resolution and lack of digital artefacts. A friend also purchased the MSB combination after hearing it in his own system and at my place. He also auditioned the Playback Designs unit and decided that the MSB better ticked all of his boxes.
I have no affiliation with MSB or any of their distributors, just a very happy owner of their equipment after a long search for something that would put a smile on my face comparable to that provided by my analog front end (see in my system page).
Good luck with it all.
Aaron