It's at the very least true 5.1. I'm not very familiar with 7.1 and how it outputs to speakers, but the ENMA's connectors definitely support 5.1. The ENMA doesn't do virtual, what ever channels the source has, that's what the ENMA keeps.
As for using it with the X41, what digital in does the X41 have? The ENMA has a TOS Link I believe which is how it outputs to 7.1, if the X41 works with that you should be golden. I must apologize as I did not test the optical out when I had the unit, as I don't have any gear to test it with.