ZONE4 4-Zone Stereo Mixer 1-Mic/Line 4-Line i/p 1UThe sophisticated pre amplifier ZONE4 allows you to control four stereo zones with just one affordable unit. In any of the 4 zones you can play music that comes from one of the 4 music sources you can connect. There is also the possibility to assign 3 microphones to each zone where MIC1 can be a dynamic priority mic (via contact closure) or a 4 zone selective paging microphone (MICPAT 4). Each signal is assignable to any of the four output zones