Abstract: When a loudspeaker works with large displacement,nonlinear distortion can be found obviously in sound response signal.The distortion can be reduced by compensation techniques for regular nonlinear distortion.A feed-forward compensator for this purpose,which is based on the theory of feedback linearization,is discussed in this paper.The effects of the variation of loudspeaker parameters on the performance of the compensator are evaluated by simulation.The actual performance of the compensator is evaluated by experiments on loudspeaker samples.Results show that harmonic distortions at low frequency are reduced by about 10dB after compensation,while the fundamental response has no change.Therefore,the regular nonlinear distortion of loudspeaker response can be effectively reduced by the feedforward compensator,and the compensator can be applied to various loudspeaker systems.