The second I believe may be a firmware, or maybe a change in manufacturing. Mine only displays the DSD level by the resolution, ala 2.8, 5.6, 11.2, etc. This is how the Teac I had worked as well, although the T+A displays it as 2M8, 11M2, etc. I figure it must be a German thing ....
The manual I received with the unit does not show any way of changing the display, however the manual I downloaded from their website shows one of the options in the menu is to display either this way or DSD64, DSD128... DSD512... This option is not in my unit. Therefore I am wondering if T+A has a firmware update.
Does anyone have any knowledge about this?