Orr Acoustics Share: Contractors Orr Acoustics 5880 Rock Haven Harbor Mandan, ND 58554-5403 (701) 663-3029 667-1921 (fax) About Rep Info Map About Suppy and install all types of acoustical materials, glas-board, linear metal ceilings Whom to Contact Randy & Barb Orr What's Nearby? Distance: 5 10 15 20 25 50 mi.