Apparatus for reproducing stereo sound having a housing (1, 25) defining an at least partially enclosed space. A first transducer (7) or pair of transducers (28, 29) is provided and arranged to reproduce one, both or the sum of two audio signals. A pair of transducers (10, 32) is also provided and arranged to reproduce a signal comprising the difference of the two audio signals. As the transducers communicate with the at least partially enclosed space, and the transducers arranged to reproduce the difference between the two audio signals are each arranged to direct their output primarily in a direction generally at right angles to the direction in which the first transducer or pair of transducers primarily direct their output. The apparatus may be arranged to be placed on or adjacent a generally flat surface, and the transducers arranged to reproduce the difference of the two audio signals may be arranged to direct their output towards the flat surface.