Thanks for all the suggestions. I strongly considered quite a few of the recommendations but in the end, and without the ability to hear these, I believe the Holo May KTE is the DAC I need to try. It has pretty much everything I am looking for especially considering I have come to appreciate the sound of R2R NOS type DACs. The Holo May KTE has a lot of features I was looking for, including a dual mono layout, huge power supply in a separate enclosure, I2S input, balanced outputs, decent sized display, and the ability to process PCM and DSD to high sampling rates. The 40 pound weight indicates a solid build quality. The DAC measurements reported by John Atkinson at Stereophile and by atomicbob on the Super Best Audio Friends site were very good and the print reviews so far indicate the DAC is very musical sounding.
One thing the May doesn't do that I was sort of looking for is control volume but I can simply reengage the volume control in my SMc Audio preamp that I have continued to use as a buffer with my Metrum Ambre DAC that does control volume. I have been working with SMc on how to replace the Shallco switch with another option that can be remote controlled and can provide a display. I guess I will work on that project while I am waiting for the Holo Audio people to build my DAC.
The main other contenders I would have liked to have heard were the Mojo Mystique EVO (any level), Mola Mola Tambaqui, Bricasti M3, and Weiss 501. Of those, I probably had the most interest in the Mystique since it is an R2R DAC, but the others are all well known, all provide more features than the Mojo DAC, and are all reported to sound excellent. Thanks again for all the suggestions.
