Device for controlling a loudspeaker, the loudspeaker being an electromagnetic device able to convert an electrical signal into an acoustic signal, the loudspeaker being used in an enclosure, the control device comprising: - an input for an audio signal (S audio_ref) to be reproduced; - an output for supplying an excitation signal for the loudspeaker, called excitation signal; - means (24, 25) for calculating a first dynamic value (A ref), called first means (24, 25), the first dynamic value (A ref) being a desired dynamic value (A ref) of the diaphragm of the loudspeaker, the first means (24, 25) calculating the first dynamic value (A ref) based on the audio signal (S audio_ref) to be reproduced and the structure of the enclosure, the first means comprising a structural adaptation unit being able to provide, at each moment, the first dynamic value (A ref) as a function of a value ( γ 0) obtained from the audio signal (S audio_ref) to be reproduced and the structure of the enclosure, the structure of the enclosure being a structure chosen among: a structure of closed enclosure, a structure of vented enclosure and a structure of passive radiator enclosure; - means for calculating a plurality of second dynamic values (A ref, dA ref/ dt, V ref, X ref), called second means, the second dynamic values (A ref, dA ref/ dt, V ref, X ref) being desired dynamic values (A ref, dA ref/ dt, V ref, X ref) of the diaphragm of the loudspeaker, the second means calculating, at each moment, the plurality of second dynamic values (A ref, dA ref/ dt, V ref, X ref) based on only the first dynamic value (A ref), the second means calculating the second dynamic values (A ref, dA ref/ dt, V ref, X ref) by integration and/or derivation of the first dynamic value (A ref); - a mechanical model of the loudspeaker from which are obtained electromechanical parameters (P méca) of the loudspeaker; and - means (70, 80, 90) for calculating the excitation signal, called third means, the third means (70, 80, 90) calculating the excitation signal at each moment, without feedback loop, from the electromechanical parameters (P méca) obtained from the mechanical model of the loudspeaker, the first dynamic value (A ref) and the plurality of second dynamic values (A ref, dA ref/ dt, V ref, X ref). - an input for an audio signal (S audio_ref) to be reproduced; - an output for supplying an excitation signal for the loudspeaker, called excitation signal; - means (24, 25) for calculating a first dynamic value (A ref), called first means (24, 25), the first dynamic value (A ref) being a desired dynamic value (A ref) of the diaphragm of the loudspeaker, the first means (24, 25) calculating the first dynamic value (A ref) based on the audio signal (S audio_ref) to be reproduced and the structure of the enclosure, the first means comprising a structural adaptation unit being able to provide, at each moment, the first dynamic value (A ref) as a function of a value ( γ 0) obtained from the audio signal (S audio_ref) to be reproduced and the structure of the enclosure, the structure of the enclosure being a structure chosen among: a structure of closed enclosure, a structure of vented enclosure and a structure of passive radiator enclosure; - means for calculating a plurality of second dynamic values (A ref, dA ref/ dt, V ref, X ref), called second means, the second dynamic values (A ref, dA ref/ dt, V ref, X ref) being desired dynamic values (A ref, dA ref/ dt, V ref, X ref) of the diaphragm of the loudspeaker, the second means calculating, at each moment, the plurality of second dynamic values (A ref, dA ref/ dt, V ref, X ref) based on only the first dynamic value (A ref), the second means calculating the second dynamic values (A ref, dA ref/ dt, V ref, X ref) by integration and/or derivation of the first dynamic value (A ref); - a mechanical model of the loudspeaker from which are obtained electromechanical parameters (P méca) of the loudspeaker; and - means (70, 80, 90) for calculating the excitation signal, called third means, the third means (70, 80, 90) calculating the excitation signal at each moment, without feedback loop, from the electromechanical parameters (P méca) obtained from the mechanical model of the loudspeaker, the first dynamic value (A ref) and the plurality of second dynamic values (A ref, dA ref/ dt, V ref, X ref).