A mount for mounting a loudspeaker in a room boundary structure having an outside surface away from the inside of the room includes a frame constructed and arranged to rest on the outside surface. A spring has a first end attached to the frame and a free second end. The spring is constructed and arranged...http://www.google.com/patents/US5574796?utm_source=gb-gplus-sharePatent US5574796 - Loudspeaker installing
