I tested the Xense and Phoebus with my Tiamat 7.1 analog headphones,and of course,set the cards to 7.1 analog. I also tested both cards in 5.1 analog. I tested my trusty Psyko Carbon's with both cards too. After playing several games,I found the Phoebus sounded better than the Xense in 7.1,and the Xense better than the Phoebus at 5.1. I prefer the Phoebus with the Tiamats at 7.1 analog for gaming. The Psyko's didn't sound as good as the Tiamat's when in 7.1 with the Phoebus. I think Asus had 7.1 analog in mind when they designed the Phoebus. All in all,the Phoebus is a great card once you figure out navigating the software settings.