I agree with Carl, the first step should be the firmware update for 861. Also the firmware update for HD621 should be a priority for M.

I complain that the firmware update corresponds to a product development, while a lack in this direction would appear as the desire to abandon that product. I believe that they should inform us lovers of this brand their real intentions about the development of the devices, present in their price list.

Setup I: DSP7200se, DSP7200HCse, DSP5500, DSW, 808.6, 861v8, G91DH, HD621, Oppo 103D XBOX360, AMX Christie HD6K-M, mySky
Setup II: DSP5000, iMac, Cambridge Audio DacMagic