The GTC Series is a series of 7 input channel mixer amplifier. This series has three separate models 60, 125, and 250 Watts of continuous RMS power. Each unit will mix 7 channels; up to 5 microphone (Female XLR- or screw terminal), 6 Aux, and a 600 ohm tele-page input in nearly any combination. Separate Wide Range Bass and Treble Controls are included on the mixer amplifier. The GTC series consists of two levels of voice / signal activated muting and available phantom power, making this series of mixer amplifiers suitable for a wide variety of audio applications. The GTC Series has a rack mount ears included standard, with each unit.