I just bought a pair of Dynaudio Audience 52 SE speakers that will be placed in a wall unit. The speakers sound phenomenal. Both the sales person, who I have known for more than twenty-five years, is extremely knowledgable, and whom I trust implicitly and the speaker literature strongly suggest that the speakers should be placed so that they have a clearance of 18 inches to the back wall of the unit. I might be able to squeeze out 10 inches if I put the speakers on the edge of the shelf, but there is no way that I can get them out another eight to ten inches. Can anyone suggest some type of bracket that might attach to the back wall andthe speakers so that the speakers can be extended away from the wall when in use and retracted when they are not. Any other options would also be appreciated.