Mixing consoles provide ideal live sound mixing solutions for medium-sized venues including clubs, theatres and houses of worship. It is available in frame sizes from 12 to 40 channels. It is designed for installations such as churches and performance venues or for small touring sound systems. The dual-mode topology implemented to such success on the MH3 and MH4 desks allows the GB4 to be used on FOH or monitor duties with fader control of group or aux outputs. The rugged steel chassis has sloping rear connector panel so that it is easier to configure from the front of the desk while the integral power supply has link option for an external back-up PSU. Four mute groups allow several channels to be muted simultaneously. The console also features an output matrix with seven feeds to four outputs being fed from the group busses and main L, R and C (mono) outputs. It offers comprehensive set of functions and facilities in small and cost-effective footprint.