Tube DACs

I am looking for a very good tube DAC that will give me the tube mid-range magic (not too much bloom) but that alive sound, with deep bass and a wide soundstage. I tired the Electrocompaniet SS DAC on my Sony SCD-777ES and it threw a very wide soundstage with very deep bass, and great details. I am looking for a DAC that will add some of the tube maigic to the mid range especially for vocals.

I know of the CAL Alpha, Sonic Frontiers and the Audio Logic tube DACs, do you have any experience with these or any others?

Thanks for your input and Happy Listening.