Abstract: A system for producing an impregnated fiber roving, the system including a feed unit having a spool with a fiber roving, an impregnation unit configured for applying liquid matrix material onto the moving fiber roving fed from the feed unit, a matrix supply unit fluidically connected to the impregnation unit for supplying liquid matrix material to the impregnation unit, a tension sensing unit adapted to determine a tension of the fiber roving fed from the feed unit to the impregnation unit, a speed sensor for determining a speed of the fiber roving fed from the feed unit to the impregnation unit, control means configured for monitoring the tension determined by the tension sensing unit and adapting the speed of the fiber roving depending on the monitored tension, monitoring the fiber roving speed determined by the speed sensor and adapting the supply of liquid matrix material based on the monitored fiber roving speed.