Abstract: An amplifier system is disclosed. The amplifier system includes a plurality of input terminals and a plurality of amplifier channels. It further discloses switching means for selectably connecting each of the plurality of input terminals to each of the plurality of amplifier channels when the input terminal is active, prioritizing means for prioritizing the connection of each of the plurality of input terminals to each of the plurality of amplifier channels and control means for controlling the switching means in accordance with the means for prioritizing the connection so that for each amplifier channel, the active input terminal with the highest priority is connected to the amplifier channel. Also disclosed are means for limiting the output level of each amplifier channel in accordance with the input terminal that is connected to the amplifier channel.