Abstract: A system and method for adjusting the frequency response of a main speaker system used in conjunction with a subwoofer by modifying the input signal in response to user-adjustable settings to compensate for main-speaker effects characteristics in order to produce a desirable blend of the subwoofer sonic output and the main-speaker sonic output.

Abstract: The present invention is directed to a speaker system that more accurately reproduces audio sounds by minimizing the negative effects from sound reflecting from a nearby wall. The invention is embodied in both methods and apparatus of differing forms. In one embodiment, the invention comprises a method that receives an electrical signal embodying an audio signal to be communicated to the speaker, and modifies the electrical signal by a measure that is based upon a separation distance separating the speaker and a wall. In another embodiment, the invention comprises a driver circuit for a an audio amplifier that, in turn, drives a speaker. The driver circuit includes a circuit configured to receive an electrical signal embodying an audio signal to be communicated to the speaker, and a signal modifying circuit configured to modify the electrical signal by a measure that is based upon a separation distance separating the speaker and a wall.

Abstract: A system and method for adjusting a subwoofer sonic output in response to known main speaker characteristics in order to produce a desirable blending of sound from the combined subwoofer-main speaker output.