@kalali -- where did you get your Mulitbit information? They are R2R designs. From the Schiit web site: "Today, virtually every DAC uses a reduced-bit technology known as "delta sigma." Multibit DACs have largely gone by the wayside, thanks to less-expensive delta-sigma technology. The few multibit DACs that exist either use NOS (new old stock) D/A chips, one of two or three still-extant multibit chips, or build their own R2R ladders at high cost. We've always believed that multibit DACs provide the best sonic performance, especially when coupled with Schiit's unique, DSP-based closed-form digital filter. This is why we've brought them together in our unique True Multibit topology, using current-production, medical/military grade D/A converters." (Schiit also offers less expensive delta-sigma DAC options.)
I would like to think that Mike Moffat has sufficient credentials to make such a statement. (I just recently finished the book "Schiit Happens -- The Story of the World's Most Improbable Start-up" which has provides a more detailed look at the company, their products and the people behind it all.)