I need to hang my 5B's (using as surrounds) on the wall behind my sofa. Sounds easy, but the walls they need to be mounted to are perpendicular to the room.  The mount would have to attach to the wall, come out straight, then do a 90 degree turn and attach to the 5B.  If you look at my gallery picture at http://www.aperionaudio.com/community/forums/thread/6942.aspx you'll get a better idea of what I mean.

Since that opening behind the couch is so high I need to angle the 5B's down more than they are. I have some foam packing material under them now but it's not enough and if I add more I'm araid they'll just fall over.

Would the Omni mount work?  I realize it's for a ceiling but would it have enough vertical support to hold a 5B?  Would it come out far enough to allow me to angle the speakers down a good 45 degrees? Any other ideas?

 Thanks