A pair of high power transducer speakers that are fitted invisibly behind panels and are suitable for spa, bathroom or marine use. The speakers do not have a conventional cone but attach to a surface and use that as the ?speaker?. The special driver vibrates the surface it is attached to in the same way as the bodies of natural musical instruments (for example the acoustic guitar, violin or piano). These vibrations emit sound energy in a non directional manner capable of creating high definition sound over a wide area. For best effect use with a subwoofer.