Well I am moving into a new house and the front wall is "inset" to hold all the a/v components, tv and subs. Since the 2 mfw-15's will be in this "null" will I need to add the auralex bass traps in the corners??? (shown in red in the picture) also the whole living room(15X20) floor is tile. Should I add the grammas for the subs(shown in pink) Thanks!!! Also sorry for my photoshop skills...or lack thereof. :D
http://i2.photobucket.com/albums/y14/bmxpert57/livingroom.jpg

First, why do you think those positions are nulls?
Second, I think that the measures you propose are probably totally inadequate as the rest of the room needs treatment.