A switching power conversion system for start-up pop minimization in an audio amplifier assembly, said system comprising: a forward path including a compensator, a switching power stage for amplifying an output signal from the compensator, and a demodulation filter for filtering an output signal from the switching power stage and providing an amplified output, said switching power stage including a high side bootstrap capacitor and a pre-charging circuit (301; 321) for charging the high side bootstrap capacitor; a DC-servo connected between the amplified output and an input of the compensator, thereby enabling reduction of offset voltages in the amplified output; a signal path connecting the output of the compensator to the DC-servo; and a sequence control unit configured for: ensuring correct biasing of the compensator and DC-servo at start-up; charging said high side bootstrap capacitor by controlling said pre-charging circuit (301; 321) in said power stage; and after said correct biasing is ensured and said high side bootstrap capacitor is charged, starting said switching power stage, wherein said signal path further comprises a switch for connecting or disconnecting the DC-servo from the output of the compensator, and wherein said sequence control unit is further configured for: closing said switch at start-up, thereby connecting the DC-servo to the output of the compensator and ensuring said correct biasing of the compensator and the DC-servo at start-up; and simultaneously opening said switch and starting said switching power stage, wherein said forward path further comprises: a constriction block for attenuating or clipping an input signal and feeding the clipped signal to the compensator; wherein said sequence control unit is further configured for controlling said constriction block to attenuate or clip the input signal before said correct biasing of the compensator and DC-servo has been ensured and to stop the attenuation/clipping of said input signal after the switching power stage is started. a forward path including a compensator, a switching power stage for amplifying an output signal from the compensator, and a demodulation filter for filtering an output signal from the switching power stage and providing an amplified output, said switching power stage including a high side bootstrap capacitor and a pre-charging circuit (301; 321) for charging the high side bootstrap capacitor; a DC-servo connected between the amplified output and an input of the compensator, thereby enabling reduction of offset voltages in the amplified output; a signal path connecting the output of the compensator to the DC-servo; and a sequence control unit configured for: ensuring correct biasing of the compensator and DC-servo at start-up; charging said high side bootstrap capacitor by controlling said pre-charging circuit (301; 321) in said power stage; and ensuring correct biasing of the compensator and DC-servo at start-up; charging said high side bootstrap capacitor by controlling said pre-charging circuit (301; 321) in said power stage; and after said correct biasing is ensured and said high side bootstrap capacitor is charged, starting said switching power stage, wherein said signal path further comprises a switch for connecting or disconnecting the DC-servo from the output of the compensator, and wherein said sequence control unit is further configured for: closing said switch at start-up, thereby connecting the DC-servo to the output of the compensator and ensuring said correct biasing of the compensator and the DC-servo at start-up; and simultaneously opening said switch and starting said switching power stage, wherein said forward path further comprises: a constriction block for attenuating or clipping an input signal and feeding the clipped signal to the compensator; wherein said sequence control unit is further configured for controlling said constriction block to attenuate or clip the input signal before said correct biasing of the compensator and DC-servo has been ensured and to stop the attenuation/clipping of said input signal after the switching power stage is started. closing said switch at start-up, thereby connecting the DC-servo to the output of the compensator and ensuring said correct biasing of the compensator and the DC-servo at start-up; and simultaneously opening said switch and starting said switching power stage, wherein said forward path further comprises: a constriction block for attenuating or clipping an input signal and feeding the clipped signal to the compensator; wherein said sequence control unit is further configured for controlling said constriction block to attenuate or clip the input signal before said correct biasing of the compensator and DC-servo has been ensured and to stop the attenuation/clipping of said input signal after the switching power stage is started. a constriction block for attenuating or clipping an input signal and feeding the clipped signal to the compensator; wherein said sequence control unit is further configured for controlling said constriction block to attenuate or clip the input signal before said correct biasing of the compensator and DC-servo has been ensured and to stop the attenuation/clipping of said input signal after the switching power stage is started.