The Crown Audio 14M is a part of the Commercial Audio Series. It is a rack-mountable preamplifier/mixer ideal for use in factories, schools, hospitals, restaurants, offices and other venues. It features four mic/line inputs with stereo RCA jacks and balanced phoenix-type connectors and a single output with a balanced phoenix-type connector. Priority muting is included for paging. Individual volume, bass and treble controls are provided for each input. LED signal indicators are provided for each input and the output.