When I finished the basement I worked the poles into the left and right front side of the audio cabinet and also boxed in the pole near the right surround speaker. check out the first picture in this link.
http://pages.cthome.net/lradden/ht/theater.htm
You'll see how the audio cabinet sticks out farther than the rest of the wall. It's because there are poles in the front left/right corners. Also you'll see how the wall near the surround sticks out. that's for the same reason. just work the poles into your design. Worked for me.