[bpape]

A nice chunk on the rear wall behind the seated head position will help deal with potential nulls off the rear wall which are very common.

As for the front wall, play with your seating and monitor positions first to see what they do to your response. After that, you'll likely want some panels directly behind your monitors to deal with SBIR - though the thickness will be best determined after you know the specific frequency ranges that are having boundary issues. In some cases, a 2" panel is more appropriate - sometimes a 4" is better.

Bryan