Patent ID: 8553914

Claim:
Apparatus for reproduction of stereo sound comprising: a housing arranged to sit on a generally flat surface; a first transducer arranged to reproduce one, or the sum, of two audio signals; two transducers each arranged to reproduce a signal comprising the difference of the two audio signals; and wherein the first transducer and the two transducers are all enclosed in the housing; wherein the transducers arranged to reproduce the signal comprising the difference of the two audio signals are arranged to direct their outputs primarily along different axes and wherein each of said axes lies in a direction generally at right angles to the direction in which the first transducer is arranged to primarily direct its output; and wherein the two transducers arranged to reproduce the signal comprising the difference of the two audio signals are arranged relative to the housing such that when the housing is placed on or adjacent a generally flat surface both transducers are oriented to direct their output primarily in a direction extending towards the plane of the surface.