Since my hobby has been lighting I have not had much do to with sound for most of my life (other than listening and basic setup) I am not exactly sure about this. The theatre we are renovating is both a movie and a live production venue. We recently installed a new surround sound system for the movies and the speakers on the stage are rather heavy. For a live productions we want to move the speakers off the stage to a designed storage area. Is there any affect on the sound output or quality of the speakers, including the two massive subwoofers, if they are mounted on castors to make it easier to move them?