Mid sized room -Full range vs Monitor

I will be moving into a new audio room in the near future. It measures 14'W x 18'L x 8.5'H and will be a dedicated room with moderate acoustic treatment. Three walls are ICF concrete (insulated concrete forms - concrete with 2" foam covered by sheetrock) and the rear wall is standard 2"x6" construction. Is the space sufficient to support the low frequency of a full range speaker such as the Revel Salon? Should I consider a monitor or a smaller speaker with a sub to increase placement flexibility? I am concerned about overloading the room and ending up with boomy bass. I am upgrading my current system (mid fi) so options are open. Thanks for your input.