Autodisco's Four Colour

Four colour sound to light unit. This unit illuminates the red and yellow lamps for low frequency sounds ("bass") and the blue and green lamps for higher frequencies ("treble"). It is used for faster music, running at full power, and also for slower music, where some tracks will cause the red and yellow lamps to become dimmer than normal, and other tracks have the blue and green combination at lower power. On some slow tracks, and certain faster music, it is switched off altogether.