A close-down pop reduction system for a self-oscillating class D amplifier configured to receive an input signal at an amplifier input and to provide an output signal at an amplifier output , said close-down pop reduction system comprising: a forward path coupled between the amplifier input and the amplifier output comprising an attenuator having an input and an output, a compensator having an input and an output, a switching power stage including a comparator , having an input and an output, and a power stage , having an input and an output; wherein the amplifier input is coupled to the input of the attenuator , the output of the attenuator is coupled to the input of the compensator , the output of the compensator is coupled to the input of the comparator and the output of the comparator is coupled to the input of the power stage ; a feedback path coupled between the output of the power stage and a feedback node in the compensator , said feedback path comprising a first feedback filter ; a signal path coupled between the output of the comparator and a sequence control unit , which signal path includes a close-down timing circuit configured to provide a timing signal for which audible pop noise is minimized; wherein said sequence control unit is configured to: first eliminate the input signal by controlling the attenuator ; then increase the switch-frequency of the switching power stage by moving a pole in a transfer function of the first feedback filter ; and finally disable the switching power stage at a moment in time within a PWM pulse generated at the output of the comparator of the switching power stage based on said timing signal from said close-down timing circuit . a forward path coupled between the amplifier input and the amplifier output comprising an attenuator having an input and an output, a compensator having an input and an output, a switching power stage including a comparator , having an input and an output, and a power stage , having an input and an output; wherein the amplifier input is coupled to the input of the attenuator , the output of the attenuator is coupled to the input of the compensator , the output of the compensator is coupled to the input of the comparator and the output of the comparator is coupled to the input of the power stage ; a feedback path coupled between the output of the power stage and a feedback node in the compensator , said feedback path comprising a first feedback filter ; a signal path coupled between the output of the comparator and a sequence control unit , which signal path includes a close-down timing circuit configured to provide a timing signal for which audible pop noise is minimized; wherein said sequence control unit is configured to: first eliminate the input signal by controlling the attenuator ; then increase the switch-frequency of the switching power stage by moving a pole in a transfer function of the first feedback filter ; and finally disable the switching power stage at a moment in time within a PWM pulse generated at the output of the comparator of the switching power stage based on said timing signal from said close-down timing circuit . first eliminate the input signal by controlling the attenuator ; then increase the switch-frequency of the switching power stage by moving a pole in a transfer function of the first feedback filter ; and finally disable the switching power stage at a moment in time within a PWM pulse generated at the output of the comparator of the switching power stage based on said timing signal from said close-down timing circuit . <EOS>