Patent ID: 7986801

Claim:
A device having a first and a second sound-generating means and an input for a stereo signal comprising left and right sound signals, wherein the device has an interconnected first and second part comprising the first and the second sound-generating means, respectively, the first part being physically connected to the second part, the first part being formed so as to couple soundwaves generated by the first sound-generating means into a surface when said device is placed upon said surface, wherein coupling soundwaves into the surface results in a co-vibrating of (i) the first sound-generating means and (ii) the surface to form (iii) a spatially extended source, and wherein the device has means for sending a first signal, being a first composite of the left and right sound signals, to the first sound-generating means of the first part, and a second signal, being a second composite of the left and right sound signals different from said first composite, to the second sound-generating means of the second part, wherein responsive to the co-vibrating of the first sound-generating means and the surface, a sound volume produced by said first part and said surface at a distance of one (i) meter from said first part is increased by at least 6 dB as compared to a sound volume produced by the first part when used in air and not coupled to said surface, and wherein, due to the soundwaves from the spatially extended source of the first sound-generating means and the surface, and the soundwaves from the second sound-generating means, the device provides a stereo sound sensation over a large area.