An apparatus, comprising: an enclosure; a loudspeaker mounted in the enclosure; an IC package mounted inside the enclosure, the IC package including an amplifier and a pressure sensor, the amplifier having an input terminal and an output terminal, the amplifier being configured and arranged to amplify an audio signal received via the input terminal to produce a drive signal and drive the loudspeaker with the drive signal via the output terminal, and the pressure sensor having an output terminal, the pressure sensor configured and arranged to output a status signal, indicative of a sound pressure level inside the enclosure, from the output terminal; the apparatus further comprising an audio processing circuit connected to the amplifier and configured and arranged to adjust a strength of the drive signal produced by the amplifier as a function of the sound pressure level indicated by the status signal; characterized in that the status signal output by the pressure sensor includes: an alternating current component indicative of variation in pressure inside the enclosure; and a direct current component indicative of a bias of the pressure inside the enclosure relative to a pressure exhibited inside the enclosure when the loudspeaker is at rest; wherein the audio processing circuit is further configured to adjust the drive signal to remove a DC offset of the drive signal based on the direct current component of the status signal. an enclosure; a loudspeaker mounted in the enclosure; an IC package mounted inside the enclosure, the IC package including an amplifier and a pressure sensor, the amplifier having an input terminal and an output terminal, the amplifier being configured and arranged to amplify an audio signal received via the input terminal to produce a drive signal and drive the loudspeaker with the drive signal via the output terminal, and the pressure sensor having an output terminal, the pressure sensor configured and arranged to output a status signal, indicative of a sound pressure level inside the enclosure, from the output terminal; the apparatus further comprising an audio processing circuit connected to the amplifier and configured and arranged to adjust a strength of the drive signal produced by the amplifier as a function of the sound pressure level indicated by the status signal; characterized in that the status signal output by the pressure sensor includes: an alternating current component indicative of variation in pressure inside the enclosure; and a direct current component indicative of a bias of the pressure inside the enclosure relative to a pressure exhibited inside the enclosure when the loudspeaker is at rest; wherein the audio processing circuit is further configured to adjust the drive signal to remove a DC offset of the drive signal based on the direct current component of the status signal. the amplifier having an input terminal and an output terminal, the amplifier being configured and arranged to amplify an audio signal received via the input terminal to produce a drive signal and drive the loudspeaker with the drive signal via the output terminal, and the pressure sensor having an output terminal, the pressure sensor configured and arranged to output a status signal, indicative of a sound pressure level inside the enclosure, from the output terminal; the apparatus further comprising an audio processing circuit connected to the amplifier and configured and arranged to adjust a strength of the drive signal produced by the amplifier as a function of the sound pressure level indicated by the status signal; an alternating current component indicative of variation in pressure inside the enclosure; and a direct current component indicative of a bias of the pressure inside the enclosure relative to a pressure exhibited inside the enclosure when the loudspeaker is at rest; wherein the audio processing circuit is further configured to adjust the drive signal to remove a DC offset of the drive signal based on the direct current component of the status signal.