STAR Auxiliary AmplifierYou may wish to expand the system to other areas. The Master module has a line output (AUX) where a maximum of up to four amplifiers for four areas can be connected. Inceiling AUX Amplifier. Stereo output: 10W+10W (4), 5W+5W (8), 2,5W+2,5W (16). Allows to expand the system to an additional speakers areas with a maximum of 4 areas. AUX and Master can be turned ON joined or separately, the volume and the sound source of both Master and AUX will always