@adasdad Good comments. I recently owned an Aurender N10 and purposely used the SPDIF outputs because the designers included a very good OCXO clock, it sounded great. However, I could not deal with the Conductor software, and they recently made it clear that the N10 would never be Roon ready. We will see how good the USB interface is when I plug in the Innuos coming this week. As for Burr Brown, I don't have any experience with them before this, my Gungnir is ASIC based(I think) R2R. All I know is that I have heard the Merason's in a couple settings and they are quite natural, which is my goal. I am not a freak about high resolution, I want the sound to be real and not wear on me. It will take some time, on the order of months, to decide if I like the unit or not. At some point I will pops the Gungnir back in and assess the contrast.
@audphile1 Unfortunately, Innuos Zenith only offers USB. I think you have to get to the Statement to get SPDIF of any flavor. Makes me a little nervous having no options, and some really nice SPDIF cables, but it is a well reviewed unit and I expect it will be decent.
@stuartk I will provide my thoughts on the Reuss after some time. Unlike other components, I am not sure I am a good judge of DAC's, I just don't have broad experience in that space. When I get to the point of plugging the Gungnir back in to the system and hearing contrast, I will be able to put some thoughts together.