BASS STRING SET Cromes ECB82 flat wound bass string set (050 - 070 - 085 - 105). D Addario Chromes Bass Strings are famous for their soft touch and warm, melodious tone. The ropes are made by winding a flat outer layer, which will later be polished to obtain an extra-smooth finish. Chrome delivers a deep and rich sound making them the flat wound option for Jazz, R&B, and Pop musicians.