Made some changes in my room recently, built a new TT Rack and located it on the side of the room, away from an overhead Heat Vent that was spewing Dry Air and Dust. Rebuilt the Center Rack also (smaller, shorter) this has cleaned up the Center Imaging as well. Win, win.
https://s20.postimg.org/ldt1t83ct/IMG_1940.jpg
https://s20.postimg.org/ixr8fi3bh/IMG_1945.jpg
https://s20.postimg.org/ldt1t83ct/IMG_1940.jpg
https://s20.postimg.org/ixr8fi3bh/IMG_1945.jpg