Hello there,
It's pretty hard to say how those speakers will integrate together, since I'm not familiar with those AADs. Also your room will play a significant role in how the speakers will end up sounding together.
It is usually recommended that you stick with the same brand for your fronts and center, but if you want to give our 6C a shot we would love for you to try it out and if it doesn't match up you can always send it back. Alternatively maybe you'll like it so much that you'll want to pick up a pair of fronts from us too. 
Hope that helps!
Jason Hicks
Aperion Audio Guru