The present disclosure provides systems and methods to dynamically extend loudspeaker capabilities. In particular, a system comprising a loudspeaker can receive an electronic audio signal. Responsive to a change in available headroom, one or more parameters of an equalizer being applied to at least a portion of the signal in order to extend a physical low-frequency response of the loudspeaker can be modified based on the change in available headroom. Additionally or alternatively, responsive to the change in available headroom, a bandwidth of low-frequency content of the signal that is being synthesized by the system to extend low-frequency capability of the system beyond physical capabilities of the system can be adjusted based on the change in available headroom.