I'm interested in the Epic 60 system and wanted to know about positioning the QS-8's. I've been told that they should be placed behind the listening position facing the front speakers and spaced about the same distance apart as the front speakers are apart and about 7 feet above the floor. So my question is can they be hung from the ceiling, as they can be mounted to a wall? Or could they be suspended from the ceililng - as with wires and hooks? The room that I'm setting up for a theater room only has a 7 1/2 foot ceiling and is long and open at the back of the room to an upper level so I have no back wall to mount these to. I know about the stands but would prefer the cleaner installation.