I can only mount my surround speakers for a 5.1 set-up on the rear wall and the couch (ear to wall distance) is only 1.5' from the rear wall. I am looking for a test disk that will play various forms of surround sound effects: ambiant like rain, etc. and discrete, like some one walking behind the listening position, fly-overs, etc........hopefully, all on one disk.
With this disk I would try various positions on the wall: directing straight at the listener, bouncing off the wall, bouncing off the ceiling, etc. and possibly trying bipoles vs monopoles vs tripoles (M&K)/multipoles (Axiom). I currently have a cheap pair of monopoles for the experiment.