MC3 is a 3-IN-3-OUT (XLR*2 RCA*1) passive audio splitter / audio switch; 2 stereo XLR + 1 stereeo RCA inputs and 2 stereo XLR + 1 stereo RCA outputs;
Function 1: switch among sifferent sound sources or amplifiers and compare their sound performance;
Function 2: convert signal from balanced XLR to unbalanced RCA or from RCA to XLR; Pure passive device without any impacts on sound quality. Mini size suits very well for desktop and home use.