The room size will affect the ultimate choice. I like open baffle dipole arrangements, but if the room is to small they are hard to place and the WAF is low.

The ultimate array needs an ultimate listening space! I attended a demonstration in a room that was tuned. It seemed that they deadened everything first. Then used resonators to flatten out the bass. And finished with bringing back the highs to taste with diffuse reflectors. When I listened to someone talking I could tell where exactly they were standing and I could hear them very clearly.

-Linc