Abstract: A speaker system is disclosed with user-selectable output modes including controlled directivity output modes (e.g. selectable monopole, dipole, or cardioid radiation patterns), that may be implemented with adjustable electronic delay of out-of-phase driver elements, and that provides for both even-orderharmonic distortion reduction and driver force cancellation in a compact assembly suitable for home or studio use.

Abstract: A speaker system is disclosed with user-selectable output modes including controlled directivity output modes (e.g. selectable monopole, dipole, or cardioid radiation patterns), that may be implemented with adjustable electronic delay of out-of-phase driver elements, and that provides for both even-orderharmonic distortion reduction and driver force cancellation in a compact assembly suitable for home or studio use.

Abstract: A speaker system is disclosed with user-selectable output modes including controlled directivity output modes (e.g. selectable monopole, dipole, or cardioid radiation patterns), that may be implemented with adjustable electronic delay of out-of-phase driver elements, and that provides for both even-orderharmonic distortion reduction and driver force cancellation in a compact assembly suitable for home or studio use.

Abstract: A speaker system is provided having a line array of drivers wired in parallel and treated with passive or active component systems that serve to electrically taper its effective radiating length with frequency so that it is long/tall at low frequencies and short at higher frequencies, with the effective length of the array determined so as to maintain a listener in the nearfield at typical home and studio listening distances while minimizing the destructive effects of path-length dependent high frequency comb filtering. In alternate embodiments, an array of drivers is provided and wired in series or series-parallel with passive components between the output of one driver and the input of the next. Schemes of active drive and combination schemes of active and passive drive are also contemplated.

Abstract: A system for applying a filtering scheme to an audio signal in which one or more predefined audio filtering schemes may be applied. A user interface is provided for receiving input from a user and displaying status information to the user, and may include one of a variety of adjustment controls such as a physical knob, switch, dial, slide, button, digital touchscreen, or remote control, among others. Varying linear and nonlinear filtering schemes may be provided to impact various frequency ranges in the audio signal to generate an output signal.

Abstract: A speaker system is disclosed with user-selectable output modes including controlled directivity output modes (e.g. selectable monopole, dipole, or cardioid radiation patterns), that may be implemented with adjustable electronic delay of out-of-phase driver elements, and that provides for both even-orderharmonic distortion reduction and driver force cancellation in a compact assembly suitable for home or studio use.

Abstract: A speaker system is provided having a line array of drivers wired in parallel and treated with passive or active component systems that serve to electrically taper its effective radiating length with frequency so that it is long/tall at low frequencies and short at higher frequencies, with the effective length of the array determined so as to maintain a listener in the nearfield at typical home and studio listening distances while minimizing the destructive effects of path-length dependent high frequency comb filtering. In alternate embodiments, an array of drivers is provided and wired in series or series-parallel with passive components between the output of one driver and the input of the next. Schemes of active drive and combination schemes of active and passive drive are also contemplated.

Abstract: A system for applying a filtering scheme to an audio signal in which one or more predefined audio filtering schemes may be applied. A user interface is provided for receiving input from a user and displaying status information to the user, and may include one of a variety of adjustment controls such as a physical knob, switch, dial, slide, button, digital touchscreen, or remote control, among others. Varying linear and nonlinear filtering schemes may be provided to impact various frequency ranges in the audio signal to generate an output signal.