The Audio2000'S AWM630BU wireless system is a rack-mountable UHF frequency agile in-ear monitoring system with 100 pre-programmed selectable frequencies. The AWM630BU system comprises ONE wireless transmitter (AWX6308U) and SIX wireless receivers (AWR6304U). There are two balanced combo audio inputs, two balanced audio outputs, a luxury LCD display, and a 1/4-inch stereo monitoring headphone output jack on the wireless transmitter of the AWM630BU system. The AWM630BU system is configured with a built-in limiter circuitry for eliminating distortion under excessive input levels. A mono mode and a stereo mode are available for a variety of applications. A pair of rack-mount ears are included for mounting the AWX6308U transmitter to a standard 19-inch rack. Two AWX6308U wireless transmitters (from two AWM630BU systems, two systems combined to have 12 wireless receivers) can be joined together with the included joining kit to form a two-channel transmitter and to be mounted to a rack with the included short rack-mount ears (one from each system). A hard PVC carrying case is included with the system for travel and storage.