Perfect for almost any type of installation, the PA 4100 incorporates 4 outputs of 250 W R.M.S. independent. Each output has independent volume and tone controls. PA 4100 supports both low and high impedance loads. The 4 inputs with volume control can be independently configured as mic or line with selectable + 48V phantom power, phase shift switch and high pass filter all on each channel via microswitches. The first mic input contains a selectable priority circuit. Additionally, 2 auxiliaries, a chime, a siren, and a phone line join the mix.