1. There is no difference between the D2 and D2v with regard to USB inputs (neither have them) or other digital audio inputs (both have them).
2. The M2Tech converts(!) USB to S/PDIF and will work with either Anthem or, indeed, any prepro with digital coax inputs. I believe that includes all of them.
3. There are many alternatives to the the M2Tech, both less and more expensive. This one looks especially neat: http://www.audiophilleo.com/audiophilleo2.aspx
Kal
2. The M2Tech converts(!) USB to S/PDIF and will work with either Anthem or, indeed, any prepro with digital coax inputs. I believe that includes all of them.
3. There are many alternatives to the the M2Tech, both less and more expensive. This one looks especially neat: http://www.audiophilleo.com/audiophilleo2.aspx
Kal