My entertainment center is made up of a TV credenza with an audio tower on each side. When I got my ProMonitor 1000s and my ProCenter 1000 a week or so ago, I initially put my fronts on top of the towers (obviously quite a bit higher than ear level) and have placed my Center right in front of my DLP, just below the power button and Samsung logo. I had considered getting the stands for my fronts, but I realized there's really not enough room along that wall to place anything any farther out than it is now. So, I opted to place my fronts on shelves inside my towers and just make sure the doors are open when I'm listening to something. The sound, to me, sounds excellent. But I'm just wondering if there's anything wrong with doing this. I still have about 8-9 inches of airspace to the left, right and rear of the speakers and about 3 inches above them. So am I missing out on much by the passive radiators on top being so close to the shelf above them? ALSO, I'm going to move my center down to a shelf below the TV shelf since it's somewhat covering the IR on my TV. Is there any problem with doing this?