1(3)-IN-3(1)-OUT XLR Balanced Audio Converter Stereo Passive Selector Switcher

MC103-Pro is a 3-way passive stereo audio splitter. It supports 3 stereo XLR inputs and 1 output (or 1 input and 3 outputs). 1 XLR Audio Selector( N otice: any audio cable is not included.). You can conveniently switch among different sound sources and compare their sound performance (for 3-IN-1-OUT version) and use 1 audio source and 3 amplifiers to compare the performance of your amplifiers(for 1-IN-3-OUT version).

eBay