A system for driving a loudspeaker having a plurality of coils, the system comprising: a modulator configured to receive an input signal and to output a pulse width modulated (PWM) output signal representative of the received input signal; a delay element for receiving and applying a delay to the PWM output signal to generate a first delayed signal; a first output configured to be coupled to a first coil of the plurality of coils of the loudspeaker, wherein the first output is coupled to the output of the modulator; and a second output configured to be coupled to a second coil of the plurality of coils of the loudspeaker, wherein the second output is coupled to the output of the delay.