Old School Rockford Fosgate 12 Inch Power Hx2 Subwoofer RFR3112. Never been used (personally) was sitting in a storage unit for years. The item “Old School Rockford Fosgate 12 Inch Power Hx2 Subwoofer RFR3112″ is in sale since Tuesday, February 25, 2020. This item is in the category “Consumer Electronics\Vehicle Electronics & GPS\Car Audio\Car Subwoofers”. The seller is “joale_34″ and is located in Sun City, California. This item can be shipped to United States. Brand: Rockford Fosgate Speaker Size: 12in.