I'm a rookie obviously... any how. I have a home partially under construction and there are in-celing speakers everywhere. However I want to add in a few rooms. Bathroom is small, is it okay to just put one speaker in instead of a pair? If yes, does it matter what speaker you have. I have a few boxes laying around of monoprice 6.5 inch in-celing speakers (which are boxed as pairs) can I break those down to put one speaker in four small sized rooms? Thanks?